CN203135826U - Drive circuit of voltage type gate control device - Google Patents
Drive circuit of voltage type gate control device Download PDFInfo
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- CN203135826U CN203135826U CN 201320102464 CN201320102464U CN203135826U CN 203135826 U CN203135826 U CN 203135826U CN 201320102464 CN201320102464 CN 201320102464 CN 201320102464 U CN201320102464 U CN 201320102464U CN 203135826 U CN203135826 U CN 203135826U
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Abstract
The utility model provides a drive circuit of a voltage type gate control device. The drive circuit of a voltage type gate control device comprises the components as following: a sensor interface, which is used for acquiring the work signals of the voltage type gate control device; a pulse signal interface, which is used for receiving the unipolarity pulse signals generated by an external control circuit; a digital protection circuit, which is respectively connected with the sensor interface and the pulse signal interface and used for generating driving signals according to the work signals and the unipolarity pulse signals; and an integral driving core, which is connected with the digital protection circuit and used for transforming the driving signals to control signals of the voltage type gate control device. According to the technology scheme provided in the utility model, the drive circuit emits control signals, the work reliability of the power device is guaranteed, and the high-power, high-frequency and high-reliability requirements of the power device are satisfied.
Description
Technical field
The utility model relates to field of power electronics, in particular to a kind of drive circuit of voltage-type gated device.
Background technology
Power semiconductor technologies is basis and the core of power electronic technology, development along with microelectric technique, with MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor, MOS transistor) and IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) etc. the voltage-type gated device is because of its superior performance, advantages such as control is convenient and obtain extensive use are especially at various power sources, Switching Power Supply, induction heating, inverter type welder, frequency converter, vehicle electric field is being brought into play important role.
The continuous development of power device; make its drive circuit also in development constantly; Fig. 1 shows and uses discrete device to make up the circuit diagram of IGBT driver in the prior art; Fig. 2 is the circuit diagram that uses the IGBT driver of integrated circuit TLP250 formation in the prior art; Fig. 3 is the circuit diagram that has the IGBT driver of soft grid voltage, soft turn-off protection function in the prior art, and the characteristics that the circuit diagram analysis by above three kinds of IGBT drivers can draw drive circuit of the prior art comprise:
(1) drive circuit that makes up of discrete component, dual power supply, complex structure, integrated degree is low, failure rate is high;
(2) photoelectrical coupler drive circuit, circuit is simple, volume is little, and reaction speed is slow, and no overcurrent protection function need add amplifying circuit and accessory power supply;
(3) thick film drive circuit, good confidentiality, dual power supply has overcurrent protection function, and driving power is little, operating frequency is low;
(4) special-purpose integrated drive electronics, the integrated level height, single power supply, the price height, driving power is little, operating frequency is low.
Therefore; existing MOSFET and IGBT drive circuit defencive function imperfection cause functional reliability poor; and generally can only satisfy high-power, low frequency or small-power, high-frequency application, can not satisfy the application requirements of power device high power, high-frequency, high reliability gradually.
Cause the problem of functional reliability difference at defencive function imperfection in the drive circuit of the voltage-type gated device in the correlation technique, do not propose effective solution at present as yet.
The utility model content
The utility model aims to provide a kind of drive circuit of voltage-type gated device, causes the problem of functional reliability difference with defencive function imperfection in the drive circuit that solves voltage-type gated device in the prior art.
To achieve these goals, according to an aspect of the present utility model, provide a kind of drive circuit of voltage-type gated device.The drive circuit of this voltage-type gated device comprises: sensor interface, for the working signal of gathering the voltage-type gated device; The pulse signal interface is used for receiving the unipolar pulse signal that external control circuit produces; Digital protection circuit is connected respectively with the pulse signal interface with sensor interface, is used for generating the driving signal according to working signal and unipolar pulse signal; Integrated driving nuclear is connected with digital protection circuit, is used for driving the control signal that signal is converted to the voltage-type gated device.
Further, above-mentioned digital protection circuit comprises: comparator, be connected with sensor interface, and be used for receiving working signal and when working signal exceeds pre-set limit, sending guard signal; Latch is connected with comparator, is used for the latch up protection signal; AND circuit is connected respectively with the pulse signal interface with latch, is used for guard signal and unipolar pulse signal are carried out with logical operation to obtain driving signal.
Further, the sensor interface comprises: the voltage sensor interface, for the voltage signal that receives the voltage-type gated device; The Hall element interface is for the current signal that receives the voltage-type gated device; Temperature sensor interface, for the working temperature signal that receives the voltage-type gated device, comparator comprises: first comparator, be connected with the voltage sensor interface, be used for the size of comparative voltage signal and predeterminated voltage limit value; Second comparator is connected with the Hall element interface, is used for comparing the size of current signal and predetermined current limit value; The 3rd comparator is connected with temperature sensor interface, is used for the size of C.T signal and preset temperature limit value.
Further, above-mentioned latch is the R-S latch, and a R input of this R-S latch is connected with the output of first comparator, the 2nd R input of R-S latch is connected with the output of second comparator, the 3rd R input of R-S latch is connected with the output of the 3rd comparator.
Further, the drive circuit of the voltage-type gated device that the utility model provides also comprises first electric capacity and the 3rd resistance, first end of first electric capacity connects power supply, second end of first electric capacity and first end of the 3rd resistance are connected in Section Point, second end of the 3rd resistance connects the input voltage common port, and the S input of R-S latch is connected with Section Point.
Further, above-mentioned AND circuit comprises: first with the door, this first with input be connected respectively with the output of R-S latch; Second with door, this second is connected with the output of door with first with the first input end of door, this second with second input be connected with the pulse signal interface, this second with output examine with integrated driving and be connected.
Further, the drive circuit of the voltage-type gated device that the utility model provides also comprises: photoisolator is arranged between pulse signal interface and the digital protection circuit.
Further, the drive circuit of the voltage-type gated device that the utility model provides also comprises: grid circuit, be connected with integrated driving nuclear, and be used for the output control signal.
Further, above-mentioned grid circuit comprises first resistance, second resistance, first voltage-stabiliser tube and second voltage-stabiliser tube, wherein, first end of first resistance is connected with the positive signal output of integrated driving nuclear, first end of second resistance is connected with the negative polarity output of integrated driving nuclear, second end of first resistance and second end of second resistance are connected in first node, the cathode terminal of first voltage-stabiliser tube connects first node, the cathode terminal of second voltage-stabiliser tube connects the output voltage common port, and the anode tap of first voltage-stabiliser tube is connected with the anode tap of second voltage-stabiliser tube.
Further, the drive circuit of the voltage-type gated device that the utility model provides also comprises the 3rd voltage-stabiliser tube, second electric capacity and the 3rd electric capacity, is connected in parallel on respectively between the power end and input voltage reference edge of integrated driving nuclear.
Use the technical solution of the utility model; the technical solution of the utility model; outside at integrated driving nuclear; utilize digital protection circuit in conjunction with the operating state of current voltage-type gated device; handle accordingly driving signal; make the functional reliability that the control signal that sends to power device can the guaranteed output device; and utilize the integrated driving nuclear to have improved integrated level, power output and the operating frequency of entire circuit, thereby satisfied the requirement of power device high power, high-frequency, high reliability.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 uses discrete device to make up the circuit diagram of IGBT driver in the prior art;
Fig. 2 is the circuit diagram that uses the IGBT driver of integrated circuit TLP250 formation in the prior art;
Fig. 3 is the circuit diagram that has the IGBT driver of soft grid voltage, soft turn-off protection function in the prior art;
Fig. 4 is the schematic diagram according to the drive circuit of the voltage-type gated device of the utility model embodiment;
Fig. 5 is the schematic diagram according to the digital protection circuit of the drive circuit of the voltage-type gated device of the utility model embodiment;
Fig. 6 is a kind of schematic diagram of physical circuit of drive circuit of the voltage-type gated device of the utility model embodiment.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The utility model embodiment provides a kind of drive circuit of voltage-type gated device; Fig. 4 is the schematic diagram according to the drive circuit of the voltage-type gated device of the utility model embodiment; as shown in Figure 4, the drive circuit of this voltage-type gated device comprises: sensor interface 11, pulse signal interface 12, digital protection circuit 13, integrated driving nuclear 14.
Above-mentioned driving signal is converted to the function of the control signal of direct control voltage-type gated device and is finished by integrated driving nuclear 14.This integrated driving nuclear 14 is connected with digital protection circuit 13, for driving the control signal that signal is converted to described voltage-type gated device.Particularly, logic level transition, isolation, the amplification that has showed control signal examined in this integrated driving, and the unipolarity power supply is converted to and the positive-negative polarity power supply of importing isolated from power.Integrated driving nuclear 14 can be selected the driving nuclear of the SCALE series of concept company for use, and this series drives the chip manufacturing that nuclear adopts special exploitation, driving IGBT or MOSFET that can be safe and reliable.Integrated driving nuclear 14 adopts pulse transformer to carry out electrical isolation, comprises logical drive interface, intelligent gate-drive and 3 functional units of DC-DC converter, has very strong driving force and very high isolation voltage.Select integrated driving nuclear 14 for use, can make power device be operated in desirable on off state, shorten switching time, reduce switching loss, improve its operational efficiency and reliability.Integrated driving nuclear 14 does not limit to and the specific products that uses specific company, for example can also select the Related product of SEMIKRON, INFINEON company for use.Thereby having solved driver of the prior art can not provide high power, high-frequency to drive the problem of signal.
The drive circuit of the voltage-type gated device of present embodiment; examine 14 outsides in integrated driving; utilize digital protection circuit 13 in conjunction with the operating state of current voltage-type gated device; handle accordingly driving signal; make the functional reliability that the control signal that sends to power device can the guaranteed output device; and utilize the integrated driving nuclear 14 to have improved integrated level, power output and the operating frequency of entire circuit, thereby satisfied the requirement of power device high power, high-frequency, high reliability.
Fig. 5 is the schematic diagram according to the digital protection circuit of the drive circuit of the voltage-type gated device of the utility model embodiment, this digital protection circuit 13 comprises: comparator 131, latch 132, AND circuit 133, wherein, comparator 131 is connected with sensor interface 11, is used for receiving working signal and send guard signal when working signal exceeding pre-set limit; Latch 132 is connected with comparator 131, is used for the latch up protection signal; AND circuit 133 is connected respectively with pulse signal interface 12 with latch 132, is used for guard signal and unipolar pulse signal are carried out with logical operation to obtain driving signal.
The operating state of power device uses different working signals to reflect, above-mentioned working signal can comprise that electric quantity signal such as the voltage, electric current of power device can also comprise that temperature etc. influences other signal of device performance.The drive circuit of the voltage-type gated device of present embodiment can integrated overcurrent, the defencive function of overvoltage, excess temperature, and for realizing above function, sensor interface 11 specifically can comprise: the voltage sensor interface is used for receiving the voltage signal of voltage-type gated device; The Hall element interface is for the current signal that receives the voltage-type gated device; Temperature sensor interface, be used for receiving the working temperature signal of voltage-type gated device, comparator 131 compares respectively above signal respectively, thereby comparator 131 can specifically comprise: first comparator, be connected with the voltage sensor interface, the size that is used for comparative voltage signal and predeterminated voltage limit value is at the voltage signal that collects output voltage signal that transfinites during greater than the predeterminated voltage limit value; Second comparator is connected with the Hall element interface, is used for the relatively size of current signal and predetermined current limit value, at the current signal that collects output current signal that transfinites during greater than the predetermined current signal; The 3rd comparator, be connected with temperature sensor interface, the size that is used for C.T signal and preset temperature limit value, when temperature over-range, send the temperature over-range signal, the signal that more than transfinites is high level signal, just when the power device operate as normal, and comparator 131 output low levels, when unusual condition occurring, comparator 131 output high level.
For the output signal of above comparator 131 is handled, above-mentioned latch 132 can be selected the R-S latch for use, the one R input of this R-S latch is connected with the output of described first comparator, the 2nd R input of described R-S latch is connected with the output of described second comparator, the 3rd R input of described R-S latch is connected with the output of described the 3rd comparator, this R-S latch respectively latch the state variation that output can reflect the R input.According to the truth table of R-S latch, during R input input high level, the output output low level that it is corresponding.
The input of AND circuit 133 is connected to be further processed with the output of latch 132, and AND circuit 133 specifically can comprise: first with the door, this first with input be connected respectively with the output of R-S latch; Second with door, this second is connected with the output of door with first with the first input end of door, this second with second input be connected with pulse signal interface 12, this second with output examine 14 with integrated driving and be connected.By such circuit structure, first carries out comprehensively the various working signals of power device with door, second with handle in conjunction with above comprehensive working signal pulse signals.During the power device operate as normal, first is high level with each input of door, first with the output of door also be high level, thereby only under the normal situation of all working signals, just allow the driving signal to import integrated driving and examine 14, when above arbitrary working signal occurs unusual, corresponding input with door changes low level into, thereby second receives low level with the first input end of door, second with the output output low level of door, thereby blocked the driving signal, power device is reliably ended.And latch signal is when the R input changes low level into by high level, and its output is constant, thereby has realized latch function, and just once abnormal conditions occur, unless reset, control signal can not recovered automatically.
The power supply of the drive circuit of the voltage-type gated device of the utility model embodiment is provided by power input interface, this power supply has passed through the isolation of integrated driving nuclear 14, therefore for integrated driving nuclear 14, the voltage common port of input side is different with the voltage common port of outlet side, can be called input voltage common port and output voltage common port.Present embodiment is by importing the setting circuit that power supply has designed the R-S latch, so that the guard signal that latchs is removed.In this case, the drive circuit of the voltage-type gated device of the utility model embodiment also comprises: first electric capacity and the 3rd resistance, first end of first electric capacity connects power supply, second end of first electric capacity and first end of the 3rd resistance are connected in Section Point, second end of the 3rd resistance connects the input voltage common port, and the S input of R-S latch is connected with described Section Point.
The S input of above-mentioned R-S latch is connected in Section Point, can utilize first electric capacity and the 3rd resistance that the output of R-S latch is carried out set in the moment of power supply electrifying.Thereby guarantee the correctness of subsequent logic.Characteristic according to the R-S latch, only receiving " 1 " signal at powered on moment S input is high level, thereby the output of R-S latch is resetted, along with the charging of first electric capacity finishes, it is low level that the input signal of S input changes " 0 " signal into, and the output of latch is determined by the R input.Occur when unusual, the R input is high level, and output changes low level into, handles through AND circuit 133, blocks and drives signal, restarts until re-powering.
The output of integrated driving nuclear 14 can send the control end of power device by grid circuit to, this grid circuit comprises first resistance, second resistance, first voltage-stabiliser tube and second voltage-stabiliser tube, wherein, first end of first resistance is connected with the positive signal output of integrated driving nuclear 14, first end of second resistance is connected with the negative polarity output of integrated driving nuclear 14, second end of first resistance and second end of second resistance are connected in first node, the cathode terminal of first voltage-stabiliser tube connects first node, the cathode terminal of second voltage-stabiliser tube connects the output voltage common port, and the anode tap of first voltage-stabiliser tube is connected with the anode tap of second voltage-stabiliser tube.
In order to guarantee the stability of power supply, the drive circuit of the voltage-type gated device of present embodiment can also be provided with the 3rd voltage-stabiliser tube, second electric capacity and the 3rd electric capacity, is connected in parallel on respectively between the power end and input voltage reference edge of integrated driving nuclear 14.Wherein, the 3rd voltage-stabiliser tube is used for preventing overvoltage.The appearance value of second electric capacity and the 3rd electric capacity differs 1000 times, with the common power filter that is used for.The fast acting fuse of can also connecting between the power end of power input interface and integrated driving nuclear 14 in addition prevents overcurrent and damages the power-switching circuit of integrated driving nuclear.
Describe below in conjunction with a kind of physical circuit of accompanying drawing to present embodiment; Fig. 6 is a kind of schematic diagram of physical circuit of drive circuit of the voltage-type gated device of the utility model embodiment, and this physical circuit comprises three circuit parts: signal section, power unit, protection part.
The principle of signal section circuit is: pulse signal interface 12 receives the unipolar pulse signal that external control circuit produces, and at first carries out current limliting through resistance R 1, enters high speed photo coupling N1 then and isolates, and blocks interference signal on the outside ground wire; Signal after the isolation of high speed photo coupling N1 draws on being undertaken by resistance R 2, and when the optocoupler input signal was low or does not have signal, the level after the isolation was high level, when high speed photo coupling N1 receives high level, and the receiving terminal conducting, the level after the isolation is low level.Because high speed photo coupling will drive signals reverse, need pass through inverter D2 reverse again, and waveform is carried out shaping; Drive afterwards signal enter dual input and door D4 namely second with door, carry out and logical operation with total status signal, just often total status signal is high level+15V, drive signal and directly export to integrated driving nuclear N5, carry out logic level transition, isolation, amplification, convert the unipolarity low-power level signal to the bipolar great power signal and export to grid circuit; Wherein positive signal is by first resistance R 4, and the negative polarity signal is by second resistance R 5, and adopting different resistance is in order to control the switching speed of power device respectively; V2, V3 are respectively first voltage-stabiliser tube and second voltage-stabiliser tube, first voltage-stabiliser tube and the second voltage-stabiliser tube differential concatenation, and it is too high to act as the two-way drive signal amplitude that prevents, the grid of breakdown power device; Resistance R 6 is high resistance measurements, and effect is when no signal grid level to be dragged down, and namely R6 is pull down resistor, and the guaranteed output device reliably ends; C6 is a pico farad level electric capacity, and effect is the higher-order of oscillation that filtering drives signal rising, trailing edge; Drive signal through behind the foregoing circuit, give the grid of power device, the voltage common port COM of output and the voltage public terminal GND of input are isolated from each other.
The principle of power unit is: power input interface receives the power supply of outside+15V unipolarity power supply, by voltage stabilizing didoe V1, with stabilized input voltage at+15V; Second capacitor C 2, the 3rd capacitor C 3 are that two appearance values differ 1000 times electric capacity, are used for power filter; F1 is a fast acting fuse, is serially connected between the power end of power input interface and integrated driving nuclear N5, prevents the power device gate short and damages the power-switching circuit of integrated driving nuclear; + 15V converts to ± the 15V duplicate supply by integrated driving nuclear N5, is powered to pulse amplifying circuit by N5 inside; C4, C5 are that two Da Rong values have polar capacitor, are used to ± energy storage of 15V power supply.
In Fig. 6, terminal X1 is the pulse signal interface, be used for receiving the unipolar pulse signal, terminal X2 is integrated sensor interface and input power interface, first end and second end receive voltage signal and predeterminated voltage signal respectively among the terminal X2, the 3rd end and the 4th end be received current signal and predetermined current signal respectively, and five terminal and the 6th end receive temperature signal and preset temperature signals respectively, and the 7th end is connected power supply+15V and input voltage public terminal GND respectively with the 8th end.
The circuit theory of protection part is: R-S latch D1 carries out set at+15V power supply power supply moment S input S0, S1, S2 by the 3rd resistance R 3,1 pair of latch of first capacitor C; D1 output this moment Q0, Q1, Q2 are high level; again through three inputs and door D3 namely first with the total state information of door output; normal is high level+15V; import dual input and door D4 again; with drive signal with, this moment, D4 did not block, normal output drive signal examines N5 for integrated driving.
The drive circuit of the voltage-type gated device of present embodiment receives power device voltage, electric current, the state of temperature signal that external voltage transducer, Hall element, temperature sensor are sent here in real time, transducer converts high voltage, big electric current, temperature to low voltage signal in proportion, and the protection operation voltage with voltage comparator N2, N3, N4 setting compares respectively; When a certain in three kinds of states or certain several input voltage surpassed default protection operation voltage, voltage comparator output high level was sent into R-S latch D1 more respectively.D1 preserves and exports simultaneously steady-state signal low level " 0 " signal just with the transient signal locking; three tunnel steady-state signals of representative voltage, electric current, state of temperature information are sent into three inputs and door D3 simultaneously respectively; when one road signal is that low level 0V namely occurs when unusual; D3 output low level then; import dual input and door D4 again; with drive signal with; this moment, D4 blocked; output drive signal is not given integrated driving nuclear N5; whole digital drive protected location output low level-15V; power device is reliably ended, the protection power device.
After fault took place, drive circuit blocked and drives signal, if need make its output drive signal again, needed the digital drive protected location is resetted.Reset mode realizes that by the power supply of control outside+15V unipolarity power supply just the mode that powers on again by outage resets.
The drive circuit of the voltage-type gated device of present embodiment; outside at integrated driving nuclear; utilize digital protection circuit in conjunction with the operating state of current voltage-type gated device; handle accordingly driving signal; make the functional reliability that the control signal that sends to power device can the guaranteed output device; and utilize the integrated driving nuclear to have improved integrated level, power output and the operating frequency of entire circuit, thereby satisfied the requirement of power device high power, high-frequency, high reliability.
The connected mode that the circuit of above-mentioned appearance, module and function thereof are by hardware realizes.The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. the drive circuit of a voltage-type gated device is characterized in that, comprising:
Sensor interface is for the working signal of gathering described voltage-type gated device;
The pulse signal interface is used for receiving the unipolar pulse signal that external control circuit produces;
Digital protection circuit is connected respectively with described pulse signal interface with described sensor interface, is used for generating the driving signal according to described working signal and described unipolar pulse signal;
Integrated driving nuclear is connected with described digital protection circuit, is used for described driving signal is converted to the control signal of described voltage-type gated device.
2. the drive circuit of voltage-type gated device according to claim 1 is characterized in that, described digital protection circuit comprises:
Comparator is connected with described sensor interface, is used for receiving described working signal and send guard signal when described working signal exceeding pre-set limit;
Latch is connected with described comparator, is used for latching described guard signal;
AND circuit is connected respectively with described pulse signal interface with described latch, is used for described guard signal and described unipolar pulse signal are carried out with logical operation to obtain described driving signal.
3. the drive circuit of voltage-type gated device according to claim 2 is characterized in that,
Described sensor interface comprises:
The voltage sensor interface is for the voltage signal that receives described voltage-type gated device;
The Hall element interface is for the current signal that receives described voltage-type gated device;
Temperature sensor interface, for the working temperature signal that receives described voltage-type gated device,
Described comparator comprises:
First comparator is connected with described voltage sensor interface, is used for the size of more described voltage signal and predeterminated voltage limit value;
Second comparator is connected with described Hall element interface, is used for the size of more described current signal and predetermined current limit value;
The 3rd comparator is connected with described temperature sensor interface, is used for the size of more described temperature signal and preset temperature limit value.
4. the drive circuit of voltage-type gated device according to claim 3, it is characterized in that, described latch is the R-S latch, and a R input of this R-S latch is connected with the output of described first comparator, the 2nd R input of described R-S latch is connected with the output of described second comparator, the 3rd R input of described R-S latch is connected with the output of described the 3rd comparator.
5. the drive circuit of voltage-type gated device according to claim 4, it is characterized in that, also comprise first electric capacity and the 3rd resistance, first end of described first electric capacity connects power supply, second end of described first electric capacity and first end of described the 3rd resistance are connected in Section Point, second end of described the 3rd resistance connects the input voltage common port, and the S input of described R-S latch is connected with described Section Point.
6. the drive circuit of voltage-type gated device according to claim 4 is characterized in that, described AND circuit comprises:
First with the door, this first with input be connected respectively with the output of described R-S latch;
Second with door, this second is connected with the output of door with described first with the first input end of door, this second with second input be connected with described pulse signal interface, this second with output examine with described integrated driving and be connected.
7. the drive circuit of voltage-type gated device according to claim 1 is characterized in that, also comprises:
Photoisolator is arranged between described pulse signal interface and the described digital protection circuit.
8. the drive circuit of voltage-type gated device according to claim 1 is characterized in that, also comprises: grid circuit,
Be connected with described integrated driving nuclear, be used for exporting described control signal to described voltage-type gated device.
9. the drive circuit of voltage-type gated device according to claim 8 is characterized in that, described grid circuit comprises first resistance, second resistance, first voltage-stabiliser tube and second voltage-stabiliser tube, wherein,
First end of described first resistance is connected with the positive signal output of described integrated driving nuclear, first end of described second resistance is connected with the negative polarity output of described integrated driving nuclear, second end of described first resistance and second end of described second resistance are connected in first node, the cathode terminal of described first voltage-stabiliser tube connects described first node, the cathode terminal of described second voltage-stabiliser tube connects the output voltage common port, and the anode tap of described first voltage-stabiliser tube is connected with the anode tap of described second voltage-stabiliser tube.
10. the drive circuit of voltage-type gated device according to claim 1 is characterized in that, also comprises the 3rd voltage-stabiliser tube, second electric capacity and the 3rd electric capacity, is connected in parallel on respectively between the power end and input voltage reference edge of described integrated driving nuclear.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038191A (en) * | 2013-03-06 | 2014-09-10 | 北京北广科技股份有限公司 | Driving circuit of voltage type gate control device |
| CN104333293A (en) * | 2014-11-20 | 2015-02-04 | 奇瑞汽车股份有限公司 | Electric car motor controller |
| CN110336250A (en) * | 2019-06-25 | 2019-10-15 | 合肥巨一动力系统有限公司 | A kind of soft protection circuit of the hardware of IGBT multiplexing functions |
| CN112583295A (en) * | 2020-12-15 | 2021-03-30 | 中国工程物理研究院激光聚变研究中心 | High repetition frequency and high voltage nanosecond pulse driving power supply system and operation method |
-
2013
- 2013-03-06 CN CN 201320102464 patent/CN203135826U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038191A (en) * | 2013-03-06 | 2014-09-10 | 北京北广科技股份有限公司 | Driving circuit of voltage type gate control device |
| CN104333293A (en) * | 2014-11-20 | 2015-02-04 | 奇瑞汽车股份有限公司 | Electric car motor controller |
| CN110336250A (en) * | 2019-06-25 | 2019-10-15 | 合肥巨一动力系统有限公司 | A kind of soft protection circuit of the hardware of IGBT multiplexing functions |
| CN110336250B (en) * | 2019-06-25 | 2021-10-15 | 合肥巨一动力系统有限公司 | A hardware soft protection circuit with IGBT function multiplexing |
| CN112583295A (en) * | 2020-12-15 | 2021-03-30 | 中国工程物理研究院激光聚变研究中心 | High repetition frequency and high voltage nanosecond pulse driving power supply system and operation method |
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