CN113923817A - Device for reducing combustion leakage rate of burned device - Google Patents
Device for reducing combustion leakage rate of burned device Download PDFInfo
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- CN113923817A CN113923817A CN202111292757.9A CN202111292757A CN113923817A CN 113923817 A CN113923817 A CN 113923817A CN 202111292757 A CN202111292757 A CN 202111292757A CN 113923817 A CN113923817 A CN 113923817A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 27
- 238000004146 energy storage Methods 0.000 claims abstract description 82
- 230000001105 regulatory effect Effects 0.000 claims abstract description 25
- 238000005070 sampling Methods 0.000 claims description 22
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical group O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims description 20
- 230000009191 jumping Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 230000001960 triggered effect Effects 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 229910052724 xenon Inorganic materials 0.000 description 48
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 48
- 210000003491 skin Anatomy 0.000 description 15
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- 210000001519 tissue Anatomy 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
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- 239000000446 fuel Substances 0.000 description 3
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
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- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
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- 210000001736 capillary Anatomy 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a device for reducing the combustion leakage rate of a burnt device. The device comprises: the common end of the trigger switch is connected with the anode of the trigger energy storage unit, the contact I of the trigger switch is connected with the cathode of the regulating unit, the contact II of the trigger switch is connected with the input electrode of the trigger boosting unit, the output electrode of the trigger boosting unit is connected with the trigger electrode of the ignited device, the cathode of the power supply unit, the cathode of the trigger energy storage unit, the common electrode of the trigger boosting unit and the cathode of the ignited device are all grounded, and the anode of the power supply unit and the anode of the regulating unit are connected with the anode of the ignited device.
Description
The application is a divisional application of CN202110884110.9, the application date of the original application is 2021-08-03, the application number is CN202110884110.9, and the invention provides a device for reducing the combustion leakage rate of a fired device.
Technical Field
The invention relates to a device for igniting a device to be ignited, in particular to a device for reducing the flame leakage rate of the device to be ignited in various internet terminals.
Background
With the rapid development of the technology, a variety of internet terminals are emerging continuously, wherein many internet terminals have a burned device which needs to be ignited at high pressure, for example, a xenon lamp is used as a pumping source in a laser emitting device in a household portable laser liquid sample collecting device, the liquid sample comprises various body fluids, and the collected liquid sample can be used as a sample of a portable medical instrument for preliminary diagnosis, such as blood glucose tracking and the like.
A xenon lamp is a xenon filled photoelectric cell or a flash lamp. Xenon gas is inert in chemical property, can not burn and can not support combustion. The natural rare gas has the highest molecular weight and the highest density. Xenon high-pressure lamps emit strong ultraviolet radiation. In many existing products, for various objective reasons, a lighted device like a xenon lamp is difficult to be lighted under a non-standard environment of an actual application scene, and the burning leakage rate is high, so that the user experience is poor.
Disclosure of Invention
In order to solve at least one of the above technical problems, an embodiment of the present invention provides an apparatus for reducing a light-leakage rate of a device to be burned.
In order to achieve the above purpose, the embodiment of the invention is realized by adopting the following technical scheme:
a device for reducing the burning leakage rate of a burnt device is characterized in that,
comprises a power supply unit, a regulating unit, a triggering energy storage unit, a triggering boosting unit, a fired device and a triggering switch,
wherein,
the common end of the trigger switch is connected with the anode of the trigger energy storage unit,
a contact I of the trigger switch is connected with the negative pole of the regulating unit,
the second contact of the trigger switch is connected with the input electrode of the trigger boosting unit,
the output pole of the trigger boosting unit is connected with the trigger pole of the burnt device,
the cathode of the power supply unit, the cathode of the triggering energy storage unit, the common electrode of the triggering boosting unit and the cathode of the device to be ignited are all grounded,
the positive pole of the power supply unit and the positive pole of the adjusting unit are connected with the positive pole of the ignited device.
By changing the voltage on the regulating unit, the voltage on the trigger boosting unit is changed, so that the voltage on the burnt device is changed, the burning condition is met, and the burning leakage rate of the burnt device is reduced.
Drawings
FIG. 1 is a schematic diagram of an apparatus for reducing a misfire rate according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an apparatus for reducing a misfire rate according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an apparatus for reducing the leakage rate of a low-input, multi-output power supply unit according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an apparatus for reducing the leak rate of a fuel cell including a main energy storage unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an apparatus for reducing a misfire rate, including a determining unit according to an embodiment of the invention;
FIG. 6 is a schematic diagram of an apparatus for reducing a misfire rate, including a determining unit according to an embodiment of the invention;
FIG. 7 is a schematic diagram of an implementation scheme of an embedded single chip microcomputer of a judgment unit of a device structure for reducing a fuel leakage rate according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an embedded MCU control method of a determining unit of a device structure for reducing a misfire rate according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an apparatus for reducing a misfire rate including a feedback unit according to an embodiment of the invention;
FIG. 10 is a circuit diagram of an apparatus for reducing a leak rate including a feedback unit according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of an implementation scheme of an embedded single chip microcomputer of a feedback unit of the device structure for reducing the misfire rate according to the embodiment of the invention;
FIG. 12 is a schematic diagram of a control method for implementing an embedded single-chip microcomputer of a feedback unit of the device structure for reducing the misfire rate according to the embodiment of the invention;
FIG. 13 is a schematic diagram of an implementation of a regulating unit of the device structure for reducing the leak rate according to the embodiment of the present invention;
fig. 14 is a schematic diagram of another implementation scheme of the adjusting unit of the device structure for reducing the fuel leakage rate according to the embodiment of the invention.
The object of the present invention, its functional characteristics and advantageous effects will be further described with reference to the following embodiments and drawings.
Detailed Description
A xenon lamp is a xenon filled photoelectric cell or a flash lamp. Xenon is inert in chemical property, can not burn, can not support combustion, and has the highest molecular weight and the highest density in natural rare gas. Xenon high-pressure lamps emit strong ultraviolet radiation. In many existing products, a lighted device like a xenon lamp is difficult to be ignited due to various objective reasons, and the burning leakage rate is high, so that the user experience is poor.
Taking a portable laser liquid sample collection device as an example, because the device often has a plurality of gears, each gear has different voltages, and a xenon lamp in each device needs different ignition voltages due to individual differences, when the gear voltage is low, due to various reasons, a device to be ignited such as the xenon lamp is often difficult to be ignited, the flash rate is high, and the user experience is poor.
If the skin thickness of teenagers is thin, the cauterization process can be completed without too high energy, and at the moment, for a laser blood sampling device, high luminous power is not needed, and at the moment, the luminous power is reduced by adjusting down the power voltage, the battery consumption is reduced, and therefore, the supplied trigger voltage is also reduced.
However, for the elderly, the skin is thick, the voltage of the mobile power supply is reduced for the equipment used for a period of time, the required ignition voltage threshold values are different due to different ignition characteristics of different xenon lamps, the electrodes of the xenon lamps are aged and lost along with the increase of the working times of the xenon lamps, the performance of the electrodes is reduced, the required ignition voltage is also changed, and therefore the burning leakage rate is increased rapidly under a lower voltage value or after the electrodes of the xenon lamps are aged and lost.
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
As shown in fig. 1, the invention is a device for reducing the burning leakage rate of a burning object device, which is characterized in that,
comprises a power supply unit, a regulating unit, a triggering energy storage unit, a triggering boosting unit, a fired device and a triggering switch,
wherein,
the common end of the trigger switch is connected with the anode of the trigger energy storage unit,
a contact I of the trigger switch is connected with the negative pole of the regulating unit,
the second contact of the trigger switch is connected with the input electrode of the trigger boosting unit,
the output pole of the trigger boosting unit is connected with the trigger pole of the burnt device,
the cathode of the power supply unit, the cathode of the triggering energy storage unit, the common electrode of the triggering boosting unit and the cathode of the device to be ignited are all grounded,
the positive pole of the power supply unit and the positive pole of the adjusting unit are connected with the positive pole of the ignited device.
The specific principle of the device is as follows:
when the common end of the trigger switch is connected with the negative electrode of the regulating unit through the contact I of the trigger switch, the power supply unit charges energy to the trigger energy storage unit through the regulating unit,
when the common end of the trigger switch is connected with the input electrode of the trigger boosting unit through the contact II of the trigger switch, the trigger energy storage unit discharges through the main edge of the trigger boosting unit, and the secondary edge of the trigger boosting unit discharges to the trigger electrode of the burnt device after boosting.
When the gear voltage of the laser liquid sample collecting device is low and the voltage required by the xenon lamp is high, the xenon lamp is difficult to ignite due to various reasons, the burning leakage rate is high, and the user experience is poor.
At the moment, the adjusting unit and the triggering energy storage unit are connected in series, the voltage of the power supply unit is a constant value, the adjusting unit and the triggering energy storage unit respectively have a resistance value, when the resistance value of the adjusting unit is reduced, the voltage distributed on the adjusting unit is correspondingly reduced, the voltage distributed on the triggering energy storage unit is correspondingly increased, the voltage distributed on the triggering energy storage unit is further increased through the triggering voltage increasing unit, so that the voltage distributed on the device to be ignited meets the ignition condition, the low flame leakage rate of the device to be ignited is ensured, and the user experience is finally improved.
Especially when the laser liquid sample collecting device is a portable laser liquid sample collecting device, the power supply unit can only select a battery due to the volume. The existence of micro short circuits inside the battery, side reactions of the electrode materials and reactions between the electrode materials may cause a large voltage drop of the battery during storage (especially at a high temperature of 60 ℃), i.e. a large self-discharge of the battery, resulting in a decrease of the total voltage of the power supply unit, and thus a corresponding decrease of the voltage distributed to the trigger energy storage unit, and finally an increase of the ignition leakage rate of the ignited device. The technical scheme can effectively improve the problem.
And the device to be ignited is triggered in an external triggering mode, so that the triggering voltage is low, the design is simple, and the equipment is relatively safe.
In addition, when the traditional ignited device is used, a glow maintaining circuit is often needed, the defects are that a constant current circuit is needed for maintaining glow, the circuit is complex, energy is wasted, the glow maintaining circuit is not needed in the scheme, the circuit is simplified, and energy is saved.
Further, referring to fig. 2, as an embodiment of the apparatus for reducing the burning leakage rate of the burning target device provided by the present invention, the apparatus for reducing the burning leakage rate of the burning target device,
it is characterized in that the power supply unit comprises a constant voltage boosting unit and a battery,
wherein,
the input pole of the constant voltage boosting unit is connected with the anode of the battery,
the cathode of the constant voltage boosting unit is connected with the triggering energy storage unit, the triggering boosting unit, the burned device and the cathode of the battery,
and the output pole of the constant-voltage boosting unit is connected with the regulating unit and the anode of the burnt device.
The working voltage of the device to be ignited is usually more than 200V, the power supply unit of the traditional device to be ignited is usually the commercial power, the voltage of the commercial power is that the alternating current 220V can not move, and the device is not portable, and the working voltage of more than 200V can be obtained by matching the constant voltage booster circuit with a battery, so that the device can still work without the commercial power, and has the characteristics of small volume and mobility. Portability.
Although the power supply unit is portable, the required battery voltage is generally 12V or more, the battery has a large volume and a heavy weight, and although the battery is portable, the power supply unit is not portable, and the output of the power supply unit is constant voltage, namely, the gear is a single gear, and the power supply unit cannot be applied to the requirement of multiple gears.
Further, as an embodiment of the device for reducing the burning leakage rate of the burnt device provided by the invention, the device for reducing the burning leakage rate of the burnt device,
it is characterized in that the preparation method is characterized in that,
the power supply unit also comprises a multi-stage boosting circuit.
When the laser liquid sample collecting device is a portable laser liquid sample collecting device, the power supply unit can only select a battery due to the volume. However, the battery often cannot provide enough voltage for the device to be ignited, and although the trigger boosting unit can also provide a certain voltage boost, the device is large in size and the portability of the device is reduced.
We can use the following scheme: taking a two-stage boosting circuit as an example, a first stage boosting circuit C is used for boosting the voltage of a lithium battery from 3.7V to 4.2V to 6V to 10V, and a second stage boosting circuit D is used for boosting the voltage of the first stage from 6V to 10V to 200V to 320V, wherein the second stage is a boosting ratio of 1: 30.
The scheme is small in size and good in voltage boosting effect.
Further, referring to fig. 3, as an embodiment of the apparatus for reducing the burning leakage rate of the burning target device provided by the present invention, the apparatus for reducing the burning leakage rate of the burning target device,
characterized in that the power supply unit comprises:
the device comprises a low-voltage battery unit, a DCDC unit, a switching tube unit, a transformer unit, a current sampling unit, a voltage sampling unit and a diode unit;
wherein,
the negative electrode of the low-voltage battery cell is grounded,
the positive electrode of the DCDC unit is connected with the positive electrode of the low-voltage battery unit,
the negative pole of the DCDC unit is grounded,
the output pole of the DCDC unit is connected with the control pole of the switching tube unit,
the primary input pole of the transformer unit is connected with the anode of the low-voltage battery unit,
the primary output pole of the transformer unit is connected with the input pole of the switching tube unit,
the output electrode of the switch tube unit is connected with the positive electrode of the current sampling unit and simultaneously connected with the current sampling electrode of the DCDC unit,
the negative pole of the current sampling unit is grounded,
the input pole of the secondary side of the transformer unit is connected with the output pole of the primary side of the transformer unit,
the output pole of the secondary side of the transformer unit is connected with the anode of the diode unit,
the cathode of the diode unit is connected with the anode of the voltage sampling unit,
the negative pole of the voltage sampling unit is grounded,
and the output pole of the voltage sampling unit is connected with the voltage sampling pole of the DCDC unit.
The design principle is as follows:
when the DCDC unit starts to work, the output voltage can be sampled through the voltage sampling pole, a fixed reference voltage is arranged in the DCDC unit, when the voltage of the voltage sampling pole is lower than the reference voltage, the output pole of the DCDC unit can control the on-off of the switch tube unit to charge or discharge the primary side of the transformer unit, when the primary side of the transformer unit discharges, the output pole of the primary side can obtain a voltage higher than the voltage of a battery, the voltage is coupled to the secondary side of the transformer unit through the magnetic circuit of the transformer unit, the number of turns of the secondary side of the transformer unit is larger than that of the primary side, so that the secondary side of the transformer unit outputs a higher voltage, and the higher voltage is output to a power utilization part through the diode unit.
When the output voltage of the diode unit is increased, the voltage of the voltage sampling electrode of the DCDC unit is also increased, and when the output voltage is higher than the reference voltage, the output electrode of the DCDC unit can turn off the switching tube unit to stop boosting.
Meanwhile, in the boosting process, the current sampling pole of the DCDC unit can detect the current flowing through the primary side of the transformer unit, the reference current value also exists in the DCDC unit, and when the sampled current on the primary side of the transformer unit is higher than the reference current, the DCDC unit turns off the switching tube unit through the output pole, so that the primary side of the transformer unit enters a discharging boosting state, and the peak current on the primary side of the transformer unit is limited.
If the current of the primary side of the transformer unit is not limited, the service life of the battery can be shortened due to overlarge current, the transformer unit can generate heat seriously due to the overlarge current, the transformation efficiency is reduced, and even the transformer unit is burnt out, so that the circuit can set proper working current according to the requirement of the power of a power supply part, the battery can be protected from overcurrent, and the transformer can be protected from overheating.
Compared with the prior art, the power supply unit has extremely low input voltage, can be powered by a 3.7V lithium battery, can also be powered by 2 dry batteries, is suitable for portable equipment or equipment powered by batteries, and cannot be portable due to the fact that a related power supply circuit is powered by mains supply.
This power supply unit only needs 1 transformer, 1 secondary limit, and traditional power supply unit generally is 2 transformers, and perhaps 2 secondary limits of 2 transformers, supply power and trigger the power supply for being burnt device work respectively, and the function that reduces components and parts number or simplify components and parts can make the circuit simpler to can reduce the equipment fault rate because of the components and parts trouble leads to, the reliability is better.
Compared with the prior art, the working current of the low-voltage booster circuit can be set, the output voltage is adjustable, the adaptability of batteries with different voltages to batteries with different working currents is better, the requirement that portable products can work at different voltages on a device to be ignited can be met, and most of the disclosed related power supply circuits are supplied with power at constant voltage and cannot adjust the voltage.
Further, referring to fig. 4, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
characterized in that the device further comprises:
and the main energy storage unit is connected with the power supply unit in parallel and is used for storing electric energy required by the continuous work of the ignited device.
When the common end of the trigger switch is connected with the negative electrode of the regulating unit through the first contact of the trigger switch, the power supply unit charges the trigger energy storage unit through the regulating unit, the power supply unit also charges the main energy storage unit,
when the common end of the trigger switch is connected with the input electrode of the trigger boosting unit through the second contact of the trigger switch, the trigger energy storage unit discharges,
when the triggered energy storage unit discharges and the ignited device is ignited, the main energy storage unit discharges to the ignited device,
when the triggered energy storage unit discharges and the ignited device is not ignited, the main energy storage unit does not discharge to the ignited device,
and after the trigger energy storage unit finishes discharging, the other end of the trigger switch is connected with the negative electrode of the adjusting unit again, and the next trigger is continued.
When the electric energy stored by the triggering energy storage unit is enough to ignite the ignited device, the energy is consumed, and the main energy storage unit which stores enough electric energy continuously supplies energy to the ignited device at the moment, so that the ignited device is ensured to be continuously ignited and not to be extinguished.
When the device is used for cutting through tissues such as skin and the like, safety factors and experience factors need to be considered during design.
The skin is composed of epidermis and dermis, the dermis is composed of papillary layer and reticular layer, a large number of capillaries, lymphatic vessels, nerve endings and the like are distributed, the device collects liquid and needs to go deep into the dermis, and because the laser is applied to human tissue, when the laser is continuous laser, the laser has the risk of damaging subcutaneous tissue and musculoskeletal tissues by penetrating the dermis, and the pulse laser is safer to use.
One of the pulse generation schemes is to use a switching tube to control the irradiation time of the continuous laser, and the other scheme is to use an energy storage unit to supply power to the laser.
The safety of the first of these solutions depends on the quality of the switching tube, and if the switch fails to be normally open, the skin is exposed to laser radiation for a long time, which is unsafe.
When the energy storage unit is used for providing a laser electric energy source, the radiation of the laser can be weakened along with the release of the electric energy of the energy storage unit, the laser is not generated after the energy is consumed, and when the energy storage unit fails or a switch output by the energy storage unit fails to be normally open, the laser can not continuously generate the laser radiation.
Thus, the device powered by the energy storage unit (second solution) is safe with respect to the device powered by the non-energy storage unit (first solution).
From experience, when the skin incision opened by the laser penetrates into the dermal tissue, the blood and other body fluids such as blood can be discharged by cutting the micro blood vessels in the dermis, but the heat effect is generated on the tissues around the perforation, and when the irradiation time is longer than the thermal relaxation time of the skin tissue, the thermal damage of the skin tissue is caused by the heat conduction effect of the skin tissue, and meanwhile, a large pain is generated. The water has strong absorption to the laser of the device, and the thermal conductivity and thermal diffusivity of the skin tissue are related to the content of the water, while the content of the water in the skin tissue can reach 80 percent at most, and the thermal relaxation time of the water is related to the wavelength due to the different absorption coefficients of the water to the laser with different wavelengths.
Since the thermal relaxation time of water is about 1us for an Er: YAG laser having a wavelength of 2940nm, the irradiation time (pulse width) should be controlled to 1us or less. However, considering that both skin tissue and water are poor conductors of heat, the depth of thermal penetration of water is only 7um in 100us and 22um in 1 ms. Therefore, when the irradiation time of the laser is controlled to be about 100us, the power density of the laser can reach 106W/cm 2, and the thermal damage to the skin tissue can be controlled to be in the micron order. The irradiation time of the laser is controlled within the designated time, and the energy storage unit with the appropriate capacity is suitable, so that the requirement of liquid collection can be met, and the thermal injury and pain of the skin can be reduced.
The existing technical scheme usually utilizes a glow maintaining circuit to achieve the same purpose, and has the defects that a constant current circuit is needed for maintaining glow, the circuit is complex, energy is wasted, the scheme does not need the glow maintaining circuit, the circuit is simplified, and energy is saved.
Here, the electrical parameters of the energy storage unit are: the maximum working voltage should be at least 330V, and the minimum working voltage of the energy storage unit is at least 240V.
1. The working voltage of the xenon lamp is 240-400V, so that the maximum voltage of the energy storage capacitor is matched with the working voltage required by the xenon lamp.
2. Because the xenon lamp triggered by the circuit has energy requirement, the energy storage unit is required to have enough capacity. The voltage of the energy storage unit should be larger than 330V, and the total capacity should be larger than 600 uF.
3. The circuit can be applied to portable equipment, so that the volume of an energy storage unit is required to be small enough, and the diameter of a capacitor with the size of 330V, 600uF or more in the market is larger than 20mm, so that the thickness of the equipment is increased, and the volume of the equipment is increased.
4. The energy released by the xenon lamp is related to the discharge resistance of the capacitor, and the conventional processing mode is to increase the line width of the circuit board, but cannot be improved from the capacitor.
Further, as an embodiment of the device for reducing the burning leakage rate of the burnt device provided by the invention, the device for reducing the burning leakage rate of the burnt device,
it is characterized in that the preparation method is characterized in that,
the main energy storage unit is formed by connecting a plurality of 330V capacitors in parallel.
This scheme has two advantages, firstly, the thickness of portable product has been reduced, make portable product volume littleer, secondly, reduce the electric capacity discharge resistance, improve xenon lamp discharge current, promote xenon lamp luminous efficacy, under the energy storage capacitor of same capacity, the discharge time is shorter, the time of laser action is shorter, laser power density also can suitably promote simultaneously, the degree of depth of punching of single pulse is darker, not only can reduce the capacity of electric capacity, the time that can make laser action simultaneously again is shorter than the thermal relaxation time of skin, reduce thermal injury and painful sense more, promote product experience.
Further, referring to fig. 5, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
characterized in that the device further comprises:
and the judging unit is connected with the power supply unit in parallel and used for judging whether the ignited device is ignited or not or judging whether the main energy storage unit is charged to a target voltage or not.
The design principle is as follows:
when the device to be ignited is ignited, the main energy storage unit discharges electricity to the device to be ignited, the voltage of the main energy storage unit drops, and the judging unit obtains the judgment that the device to be ignited is ignited by detecting that the voltage of the main energy storage unit drops; when the ignited device is not ignited, the main energy storage unit cannot discharge electricity to the ignited device, the voltage of the main energy storage unit cannot be reduced, and the judgment unit obtains the judgment that the ignited device is not ignited by detecting that the voltage of the main energy storage unit is not reduced.
When the power supply unit charges the main energy storage unit, the voltage of the main energy storage unit rises, and the judgment unit obtains the judgment whether the main energy storage unit is charged to the target voltage by detecting the voltage of the main energy storage unit. When the ignited device is ignited, the electric energy of the main energy storage unit is released, and the voltage drops. The circuit can judge whether reach the trigger condition according to whether the voltage of energy storage unit reaches target voltage (high voltage), if the energy storage capacitor voltage does not reach and just send out trigger command, can lead to leaking the probability that triggers and increase like this, can lead to the energy reduction of xenon lamp simultaneously, the energy reduction of xenon lamp can lead to utilizing the laser energy reduction that xenon lamp light produced, the laser energy reduction can reduce and burn the effect, it reduces to burn the effect, can lead to user experience variation. After the judgment unit is added, whether the trigger condition is reached can be judged according to the judgment unit so as to increase the trigger probability and ensure the energy of the xenon lamp.
Whether the xenon lamp is triggered or not is to detect whether the voltage of the energy storage unit reaches a voltage (low voltage) after energy discharge is finished or not, because the xenon lamp is sealed in a product, whether the xenon lamp is normally ignited or not, and the outside can not be directly observed, and with the judgment, the equipment can prompt a user that the xenon lamp is leaked and triggered according to the prompt, so that the prompt effect can be played. A supplemental trigger or maintenance of the equipment may also be performed based on this determination.
Further, referring to fig. 6, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
it is characterized in that the preparation method is characterized in that,
the judging unit includes:
a voltage acquisition unit, an energy charging reference voltage unit, a trigger reference voltage unit, a first comparator, a second comparator, an energy charging indicator light unit and a trigger indicator light unit,
wherein,
the anode of the power supply unit is connected with the input electrode of the voltage acquisition unit, the cathode of the power supply unit is connected with the cathode of the voltage acquisition unit,
the output pole of the voltage acquisition unit is connected with the inverting input pole of the first comparator,
the output pole of the voltage acquisition unit is connected with the non-inverting input pole of the second comparator,
the energy charging reference voltage unit is connected with the non-inverting input pole of the first comparator,
the trigger reference voltage unit is connected with the inverting input pole of the second comparator,
the output pole of the first comparator is connected with the energy charging indication unit,
the output pole of the second comparator is connected with the trigger indicating unit.
The working principle is as follows:
the hardware judges that a voltage comparator is needed, the voltage acquisition unit acquires the voltage of the main energy storage unit and inputs the voltage to the input end of the comparator, the other input of the comparator is reference voltage, and the comparator outputs a compared result according to the two input voltages.
The input of the inverting terminal of the first comparator is the output of the voltage acquisition unit, the inverting terminal of the first comparator is the reference voltage, the reference value is set as the threshold voltage for judging the completion of energy charging, when the voltage of the positive electrode of the main energy storage unit is higher than the threshold voltage for completing energy charging, the input voltage of the inverting terminal of the first comparator is higher than that of the inverting terminal, the comparator outputs a low level, and the level enables the energy charging indication unit to give out sound or light and other indications to indicate whether the voltage of the main energy storage capacitor reaches the target voltage.
The input of the in-phase end of the second comparator is the output of the voltage acquisition unit, the reference voltage is output at the inverting end of the second comparator, the reference value is set as the threshold voltage for judging the completion of triggering, when the voltage of the positive electrode of the main energy storage unit is lower than the threshold voltage for completing triggering, the input voltage of the in-phase end of the second comparator is lower than the in-phase end of the second comparator, the second comparator outputs a low level, and the level enables the triggering indication unit to give out sound or light and other indications to indicate whether the xenon lamp completes triggering.
The scheme has the advantages that the response speed of the circuit is high, and the judgment result can be indicated without depending on the processing of processors such as an MCU (microprogrammed control Unit). The xenon lamp is not triggered, and whether the xenon lamp is leaked and burned or the voltage of the energy storage capacitor is insufficient or the output of the trigger circuit is insufficient can be judged in time.
Fig. 7 is an embedded single-chip implementation of the judgment unit.
Further, referring to fig. 7, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
it is characterized in that the preparation method is characterized in that,
the judging unit includes:
a power supply unit, a voltage acquisition unit, a singlechip unit, an energy charging indication unit and a trigger indication unit,
the anode of the power supply unit is connected with the input electrode of the voltage acquisition unit,
the negative pole of the power supply unit is connected with the negative pole of the voltage acquisition unit,
the output pole of the voltage acquisition unit is connected with the AD input pole of the singlechip unit,
the output 1 pole of the singlechip unit is connected with the input pole of the energy charging indicating unit,
the output 2 pole of the single chip unit is connected with the input pole of the trigger indicating unit.
The working principle is as follows:
the embedded software system needs to convert the voltage of the energy storage unit into digital quantity after being converted by an AD chip and then transmits the digital quantity to processing units such as a single chip microcomputer for processing, and the central processing units such as the single chip microcomputer send instructions after the processing. The figure is an implementation scheme of a singlechip with AD inside. The single chip microcomputer integrated with the AD can reduce the volume of the circuit, the complexity of the circuit, the fault rate of the circuit and the portability of the device, and has the other advantage that relatively accurate and continuous voltage acquisition points can be acquired, necessary data is provided for an embedded control flow in the single chip microcomputer, and the expansion is convenient.
Based on the programmable MCU, the judgment control method can be flexibly expanded, for example, the threshold voltage of charging and the threshold voltage of triggering completion can be set to be automatically adjusted, and the threshold voltage of triggering completion of different lamps can be automatically adjusted to be more accurate at different temperatures and different gears, so that the charging voltage is more accurate, and the judgment of triggering completion is more accurate.
Further, referring to fig. 8, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
it is characterized in that the preparation method is characterized in that,
the control method in the singlechip microcomputer unit in the judgment unit comprises the following steps:
step 1: detecting the voltage of a voltage acquisition pin of the singlechip, converting the voltage into the voltage of the positive electrode of the main energy storage unit, jumping to the step 2,
and step 3: the charging indication pin of the singlechip outputs an indication level to indicate the completion of charging, and the step 5 is skipped,
and 4, step 4: the charging indication pin of the singlechip outputs an indication level to indicate that the charging is not finished, and the step 5 is skipped,
and 5: judging whether the voltage U is lower than the ignition residual threshold voltage, if so, jumping to a step 6, if not, jumping to a step 7,
step 6: the trigger indication pin of the singlechip outputs an indication level to indicate the completion of the trigger, and jumps to the step 2,
and 7: and (3) outputting an indication level by a trigger indication pin of the singlechip to indicate that the triggering fails, and jumping to the step 2.
Because the burning device will produce the interference signal to the circuit in the moment of lighting, be difficult to detach the interference signal with the judgement unit of hardware, perhaps need with more complicated filter circuit, increase more auxiliary components and parts and accomplish the filtering, this has not only increased the complexity of circuit, and when the interference signal has changed, because hardware circuit parameter has already been fixed, do not necessarily can adapt to other electric interference, and use embedded software to control the processing to the interference signal can be more nimble, also can conveniently upgrade under the condition of not renewing hardware. The control method of the judgment unit realized by the single chip microcomputer is an independent judgment unit, the working state of the judgment unit is not influenced by other units of the device, for example, when the power supply unit fails and the energy storage unit finishes charging, the judgment unit can still remind a user that the charging is finished, and remind the user that high voltage exists in the device, the device needs to be lightly taken and lightly placed and cannot be detached, so that electric shock is prevented, and the safety of the device is improved.
Further, referring to fig. 9 and 10, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
it is characterized in that the preparation method is characterized in that,
the device further comprises:
a feedback unit for generating a control signal to control the regulating unit and the trigger switch,
wherein,
the output pole of the judging unit is connected with the input pole of the feedback unit,
the output pole of the feedback unit is connected with the control pole of the regulating unit,
the output pole of the feedback unit is connected with the control pole of the trigger switch.
The design principle is as follows:
when the ignited device is triggered but not ignited successfully, the feedback unit generates feedback output according to the judgment result of the judgment unit, so that the voltage of the trigger energy storage unit is regulated again by the regulation unit to obtain the voltage which is easy to trigger successfully, meanwhile, the common end of the trigger switch is connected with the first contact, and after the trigger energy storage unit is charged, the second contact of the trigger switch is connected with the input electrode of the trigger boosting unit.
When the ignited device is triggered and the ignited device is successfully ignited, the feedback unit generates feedback output according to the judgment result of the judgment unit, so that the voltage for triggering the energy storage unit is not required to be regulated again by the regulating unit, the circuit is not required to be triggered again, and the number of times of re-triggering is reduced.
The circuit is additionally provided with the feedback unit, the corresponding control signal can be obtained by the circuit according to the result output by the judging unit, the voltage output by the trigger unit can be dynamically adjusted by superposing the signal on the adjusting unit, when the trigger voltage is too low, the xenon lamp is not easy to ignite, the phenomenon of flame leakage occurs, when the voltage output by the trigger unit is too high, the electrode of the xenon lamp can be consumed, the service life of the xenon lamp is shortened, meanwhile, the circuit board is interfered and strengthened, and the stable work of the circuit board is not facilitated. After the feedback unit is added, the feedback unit adjusts the trigger voltage to proper output through the xenon lamp burning leakage condition, and under the condition that the xenon lamp can be triggered, the high voltage output by the trigger unit is not too high to influence the operation of a circuit board and the service life of the xenon lamp. Therefore, the xenon lamp burning leakage rate can be reduced by adding the feedback unit, the xenon lamp loss can be reduced, and the influence of high voltage on the work of the circuit board can be reduced.
Further, referring to fig. 11, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired is characterized in that,
the feedback unit includes:
a power supply unit, a judgment unit, a singlechip unit, an adjustment unit and a trigger switch unit,
the positive pole of the power supply unit is connected with the input pole of the judgment unit,
the negative pole of the power supply unit is connected with the negative pole of the judging unit,
the output pole of the judging unit is connected with the input pole of the singlechip unit,
the output 1 pole of the singlechip unit is connected with the input pole of the adjusting unit,
the output 2 pole of the single chip unit is connected with the input pole of the trigger switch unit.
The working principle is as follows:
the single chip microcomputer receives the signal output by the judging unit, obtains corresponding control quantity through an embedded control flow in the single chip microcomputer, and outputs the control quantity to the adjusting unit, so that the function of automatic compensation and adjustment is realized. When the frequency of the leakage triggering phenomenon is higher, the embedded control flow in the single chip microcomputer can output corresponding control quantity to the adjusting unit to increase the triggering voltage, and when the leakage triggering phenomenon does not occur any more, the embedded control flow in the single chip microcomputer outputs corresponding control quantity to the adjusting unit to reduce the triggering voltage so as to reduce the loss of the xenon lamp electrode, so that the triggering voltage is adjusted to a proper range, the triggering rate can be ensured, and the loss of the xenon lamp electrode can be reduced.
The advantage of using the embedded software in the single chip microcomputer for control is that the trigger voltage can be dynamically and flexibly adjusted to be a reasonable voltage, the flame leakage rate can not be increased, the condition that the fired device is aged and damaged due to overhigh trigger voltage can not be adjusted, and the abnormal flame leakage condition which is not considered can be processed, for example, when the trigger line is not well contacted, the embedded software in the single chip microcomputer can still properly adjust the trigger voltage, so that the fired device can still be ignited, and the stability of the device is improved.
Further, referring to fig. 12, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
it is characterized in that the preparation method is characterized in that,
the control method in the singlechip microcomputer unit in the feedback unit comprises the following steps:
step A, detecting the pin level when the single chip microcomputer finishes charging, judging whether the charging is finished or not, jumping to step B if the charging is finished, jumping to step C if the charging is not finished,
step B, the single chip outputs a signal for stopping energy charging, and jumps to step D,
step C, the single chip outputs a signal for continuously charging, jumps to step D,
d, detecting the level of the pin successfully triggered by the single chip microcomputer, judging whether the triggering is successful, if so, jumping to the step E, and if not, jumping to the step F,
step E, when the number of successful continuous triggering is more than a set value, the single chip outputs a signal for reducing the triggering voltage, the set value is a first set value, the reduction amplitude is set to be a first amplitude threshold value, the step A is skipped after the execution is finished,
and step F, when the number of times of continuous trigger failure is greater than a set value, the single chip outputs a signal for increasing the trigger voltage, the set value is a second set value, the increasing amplitude is set as a second amplitude threshold value, and the step A is skipped after the execution is finished.
The control method using the embedded software in the single chip microcomputer has the advantages that the trigger voltage can be dynamically and flexibly adjusted to be reasonable voltage, the flame leakage rate cannot be increased, the condition that the burnt device is aged and damaged due to overhigh trigger voltage cannot be adjusted, and meanwhile, the abnormal flame leakage condition which is not considered can be processed, for example, the trigger line contact is not good, when the xenon lamp is aged and the service life is reduced, the embedded software in the single chip microcomputer can still properly adjust the trigger voltage, so that the burnt device can still be ignited to work, and the stability of the device is improved. The control method comprises the steps of adjusting the trigger voltage to be low, increasing the trigger voltage to be high or low and adjusting the amplitude, wherein the adjustment to be high or low and the adjustment range are determined by the number of continuous trigger success times and the number of continuous trigger failure times, the interference on the flame leakage rate of the device has various influence factors such as xenon lamp aging, energy storage capacitor aging, trigger transformer aging and the like, the flame leakage rate is used for automatically adjusting the trigger voltage, namely the output of the device is used for controlling the input of the device, so that the control of the device on the flame leakage rate index is closed-loop control, and the robustness of the device is greatly improved by the control method.
Further, referring to fig. 13, as an embodiment of the apparatus for reducing the combustion leakage rate of the device to be fired according to the present invention, the apparatus for reducing the combustion leakage rate of the device to be fired,
it is characterized by also comprising:
the adjusting unit is composed of more than 2 resistors and triodes, all the resistors are connected in parallel, and whether the resistors are connected in parallel into the adjusting unit or not is controlled by controlling the triodes, so that the resistance value of the adjusting unit is changed.
When the voltage of the trigger energy storage unit needs to be increased, the parallel connection mode of the resistors is changed, and the resistors of the adjusting unit are reduced, so that the charging voltage of the trigger energy storage unit is increased.
The resistor network has the advantages that each group of resistors works independently, when one of the resistors is damaged and disconnected, the other resistors can still support the circuit to work, the circuit robustness is facilitated, and the shutdown is avoided. Meanwhile, the used components are simple, and the failure rate is low.
However, such a resistor network also has some disadvantages: the integration level is not high, the circuit area is increased, the gear of regulating voltage is limited, for example, a resistance network formed by 2 groups of resistors can only generate 4 groups of gears, a resistance network formed by 3 groups of resistors can only generate 8 gears, the voltage difference value between the gears is large, and finer gear regulation cannot be achieved.
Further, referring to fig. 14, as an embodiment of the apparatus for reducing the combustion leakage rate of the device,
it is characterized by also comprising:
the adjusting unit is composed of an integrated circuit digital potentiometer, and the resistance value of the adjusting unit is changed by controlling the integrated digital potentiometer.
When the voltage of the trigger energy storage unit needs to be increased, the working state of the integrated circuit digital potentiometer is changed, and the resistance of the adjusting unit is reduced, so that the charging voltage of the trigger energy storage unit is increased.
The circuit of the scheme is simple, the variable resistor has 256 or more different resistance values, the resistance values which are relatively continuously changed can be output, the output of the trigger voltage is controlled to be relatively continuously adjustable, so that the better trigger voltage is obtained, the influence of high voltage on the circuit is reduced under the condition of reducing the leakage flash rate, and the defects of the resistor network scheme are greatly improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A device for reducing the burning leakage rate of a burnt device is characterized in that,
comprises a power supply unit, a regulating unit, a triggering energy storage unit, a triggering boosting unit, a fired device and a triggering switch,
wherein,
the common end of the trigger switch is connected with the anode of the trigger energy storage unit,
a contact I of the trigger switch is connected with the negative pole of the regulating unit,
the second contact of the trigger switch is connected with the input electrode of the trigger boosting unit,
the output pole of the trigger boosting unit is connected with the trigger pole of the burnt device,
the cathode of the power supply unit, the cathode of the triggering energy storage unit, the common electrode of the triggering boosting unit and the cathode of the device to be ignited are all grounded,
the positive pole of the power supply unit and the positive pole of the adjusting unit are connected with the positive pole of the lighted device,
the device further comprises:
a judging unit connected with the power supply unit in parallel and used for judging whether the ignited device is ignited or not,
a feedback unit for generating a control signal to control the regulating unit and the trigger switch,
wherein,
the output pole of the judging unit is connected with the input pole of the feedback unit,
the output pole of the feedback unit is connected with the control pole of the regulating unit,
the output pole of the feedback unit is connected with the control pole of the trigger switch.
2. The device for reducing the burning leakage rate of the burnt device as claimed in claim 1,
characterized in that the device further comprises:
and the main energy storage unit is connected with the power supply unit in parallel and is used for storing electric energy required by the continuous work of the ignited device.
3. The device for reducing the burning leakage rate of the burnt device as claimed in claim 1
The device is characterized in that the judging unit is used for judging whether the ignited device is ignited or not or judging whether the main energy storage unit is charged to a target voltage or not.
4. A device for controlling a burnout rate of a burned object as claimed in claim 1,
the feedback unit includes:
a judging unit, a singlechip unit, an adjusting unit and a trigger switch unit,
the positive pole of the power supply unit is connected with the input pole of the judgment unit,
the negative pole of the power supply unit is connected with the negative pole of the judging unit,
the output pole of the judging unit is connected with the input pole of the singlechip unit,
the output 1 pole of the singlechip unit is connected with the input pole of the adjusting unit,
the output 2 pole of the single chip unit is connected with the input pole of the trigger switch unit.
5. A device for improving the combustion leakage rate of a combustion subject as claimed in claim 4,
it is characterized in that the preparation method is characterized in that,
the control method in the singlechip microcomputer unit in the feedback unit comprises the following steps:
step A, detecting the pin level when the single chip microcomputer finishes charging, judging whether the charging is finished or not, jumping to step B if the charging is finished, jumping to step C if the charging is not finished,
step B, the single chip outputs a signal for stopping energy charging, and jumps to step D,
step C, the single chip outputs a signal for continuously charging, jumps to step D,
d, detecting the level of the pin successfully triggered by the single chip microcomputer, judging whether the triggering is successful, if so, jumping to the step E, and if not, jumping to the step F,
step E, when the number of successful continuous triggering is more than a set value, the single chip outputs a signal for reducing the triggering voltage, the set value is a first set value, the reduction amplitude is set to be a first amplitude threshold value, the step A is skipped after the execution is finished,
and step F, when the number of times of continuous trigger failure is greater than a set value, the single chip outputs a signal for increasing the trigger voltage, the set value is a second set value, the increasing amplitude is set as a second amplitude threshold value, and the step A is skipped after the execution is finished.
6. The device for reducing the burning leakage rate of the burnt device as claimed in claim 1,
it is characterized in that the power supply unit comprises a constant voltage boosting unit and a battery,
wherein,
the input pole of the constant voltage boosting unit is connected with the anode of the battery,
the cathode of the constant voltage boosting unit is connected with the triggering energy storage unit, the triggering boosting unit, the burned device and the cathode of the battery,
and the output pole of the constant-voltage boosting unit is connected with the regulating unit and the anode of the burnt device.
7. The device for reducing the burning leakage rate of the burnt device as claimed in claim 1,
characterized in that the power supply unit comprises:
the device comprises a low-voltage battery unit, a DCDC unit, a switching tube unit, a transformer unit, a current sampling unit, a voltage sampling unit and a diode unit;
wherein,
the negative electrode of the low-voltage battery cell is grounded,
the positive electrode of the DCDC unit is connected with the positive electrode of the low-voltage battery unit,
the negative pole of the DCDC unit is grounded,
the output pole of the DCDC unit is connected with the control pole of the switching tube unit,
the primary input pole of the transformer unit is connected with the anode of the low-voltage battery unit,
the primary output pole of the transformer unit is connected with the input pole of the switching tube unit,
the output electrode of the switch tube unit is connected with the positive electrode of the current sampling unit and simultaneously connected with the current sampling electrode of the DCDC unit,
the negative pole of the current sampling unit is grounded,
the input pole of the secondary side of the transformer unit is connected with the output pole of the primary side of the transformer unit,
the output pole of the secondary side of the transformer unit is connected with the anode of the diode unit,
the cathode of the diode unit is connected with the anode of the voltage sampling unit,
the negative pole of the voltage sampling unit is grounded,
and the output pole of the voltage sampling unit is connected with the voltage sampling pole of the DCDC unit.
8. The device for reducing the burning leakage rate of the burnt device as claimed in claim 1
It is characterized in that the preparation method is characterized in that,
the judging unit includes:
a power supply unit, a voltage acquisition unit, a singlechip unit, an energy charging indication unit and a trigger indication unit,
the anode of the power supply unit is connected with the input electrode of the voltage acquisition unit,
the negative pole of the power supply unit is connected with the negative pole of the voltage acquisition unit,
the output pole of the voltage acquisition unit is connected with the AD input pole of the singlechip unit,
the output 1 pole of the singlechip unit is connected with the input pole of the energy charging indicating unit,
the output 2 pole of the single chip unit is connected with the input pole of the trigger indicating unit.
9. The device for reducing the burning leakage rate of the burnt device as claimed in claim 1,
it is characterized by also comprising:
the regulating unit consists of more than 2 resistors and triodes, all the resistors are connected in parallel,
whether the resistor is connected in parallel with the adjusting unit is controlled by controlling the triode, and the resistance value of the adjusting unit is changed.
10. The device for reducing the burning leakage rate of the burnt device as claimed in claim 1,
it is characterized by also comprising:
the adjusting unit is composed of an integrated circuit digital potentiometer, and the resistance value of the adjusting unit is changed by controlling the integrated digital potentiometer.
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| CN202110884110.9A Active CN113329536B (en) | 2021-08-03 | 2021-08-03 | A device for reducing the leakage rate of burnt devices |
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| JP3351088B2 (en) * | 1994-03-28 | 2002-11-25 | 松下電工株式会社 | Power supply |
| CN2798503Y (en) * | 2005-06-06 | 2006-07-19 | 吴昌仪 | High performance electronic ballasts for different voltages |
| JP2009032684A (en) * | 2007-06-26 | 2009-02-12 | Panasonic Electric Works Co Ltd | Discharge lamp lighting device and lighting apparatus using the same |
| WO2009096417A1 (en) * | 2008-01-28 | 2009-08-06 | Panasonic Electric Works Co., Ltd. | High-voltage discharge lamp lighting device, and illuminating device using the same |
| TWI418253B (en) * | 2009-10-23 | 2013-12-01 | Univ Nat Sun Yat Sen | A novel single-stage high-power-factor square-wave electronic ballast |
| CN210444522U (en) * | 2019-08-20 | 2020-05-01 | 西安和光智能科技有限公司 | Synchronous pre-burning trigger device of xenon lamp light source solar simulator |
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