TWM304093U - High-voltage lamp driving system and transformer using the same - Google Patents

Description

M304093 VIII. New description: [New technical field] This creation system is related to transformers, especially a transformer for driving high-voltage lamps and its applied circuit drive system. 5 [Prior Art] With the popularity of liquid crystal displays, the light-weight and high-performance backlight module has been the main demand, including the lamp driven by high voltage, as the light source of the backlight module, for display. The driving circuit for driving the lamp tube includes a switching circuit for switching the power source, a modulation circuit for controlling the switching clock, and a high-voltage ink changing device for the 10-liter parent-receiving voltage signal, when the high-voltage transformer occupies a considerable proportion of the driving circuit. The space is therefore designed by transformer manufacturers in the direction of thinning and miniaturization. Please refer to the seventeenth figure for the conventional transformer 2, which is suitable for driving a cold cathode tube in a liquid crystal display. The transformer 2 mainly comprises a bobbin rib 15 and a second E-shaped core 8 and a bobbin 8 〇 In the hollow tubular structure, the periphery is divided into a secondary side _ and a secondary side winding area to wrap around the metal coil, and the number of turns of the coil wound on the _ secondary side 802 is greater than one • secondary side The number of coils wound by 801, each of the E-shaped cores 81 is interconnected with the hollow portions of the bobbins 81, so that the coils of the primary side 8〇1 are input with an alternating current voltage signal. After that, the two E-type magnetic core 81 forms a magnetic flux circuit in the tube of the bobbin 80 and the outside of the tube. The second figure refers to the second line: the line of 8〇2 _ outputs the boosted AC voltage signal. Can be used to drive 2-pole tube illumination. w In general, the magnetic flux of the two E-type magnetic core 81 is originally only present in each of the £4 M3 04093 magnetic cores 81. However, since the drive circuit has a modulation circuit for switching the clock at high speed and high speed. Switching circuit for switching power signal, in order to avoid the high-frequency electromagnetic wave generated by its high-speed operation state, which interferes with the display signal of the display, which affects the display effect of the screen, such high-speed components are often covered with a metal 5 mask to shield the electromagnetic wave dry signal. Therefore, the metal mask around the transformer 2 can easily affect the magnetic flux circuit of the magnetic core 81, so that the phenomenon of magnetic leakage of the transformer 2 causes the magnetic flux to be paralyzed, thus increasing the load of the variable pressure 2 The voltage signal of the secondary side 8〇2 coil is unstable, and the illumination of the cold cathode tube is unstable, which reduces the quality of the display. In addition, the above-mentioned transformer 2 is inserted into the hollow portion of the bobbin 80 by the intermediate portion 81 of the two E-shaped magnetic core 81, and the rest is located outside the bobbin 8' of the bobbin. The E-type magnetic core 81 occupies almost twice as much space as the stern tube 80. In particular, as the size of the display is increasing, it is necessary to cope with higher brightness requirements with a K-lamp. 'On the bobbin 8G, only a limited number of coils can be wound. Under the condition, if you want to provide multiple lamps with multiple transformers in series, the above-mentioned module structure of Aiyiyi 2 has no effect on the space of the drive circuit, and can not effectively cope with the display module with south brightness requirements. Device. [New content] 2〇 Therefore, the main purpose of this creation is to provide a high-pressure lamp transformer that can effectively prevent the loss of transformer flux and maintain the characterization of lamp illumination. ~ Another purpose of this creation is to provide a high-pressure lamp driving system that can improve the use efficiency of the (4) hardware space and achieve the high brightness requirement of multi-lamp illumination by saving the space of the driving M304093. In order to achieve the purpose of the previous disclosure, the present invention provides a high-voltage technology, a charging circuit, a transformer and a plurality of lamps, and the driving system has a circuit - the output group can output a specific height, and the second one of the Signal to the transformer; the transformer is an AC boost circuit composed of a voltage side coil group of a j-bit of a primary line and a magnetic core ,, and has a plurality of pairs of winding frames and a magnetic pair The core group, each pair of two=the transformers are arranged in parallel with each other, and each of the winding frames is provided with a first winding frame for the plurality of second coils, the first coil and the second coil ratio ring and the pair of materials Formed by winding, the first coils are electrically connected to the two metal wires, and the magnetic core group is made of a magnetic material, and has two outlet portions, and the two inner magnetic flux portions are disposed on the plurality of winding portions. Inside, = and 1 are magnetically set to 15 streams, and each of the second electrodes is electrically connected to at least the lamp. The same electric system [Embodiment] The following is a brief description of the components and functions of a better creation with a number of drawings, and a brief description of the two copies of the drawings, such as T ·· /, used in the drawings; Figure _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 20 M304093 is not intended to be round; #辨=四图 is the stereoscopic 提供 provided by the above first preferred embodiment; the decomposition of the transformer 5 is the fifth embodiment of the above-mentioned preferred embodiment provided by the above-mentioned preferred embodiment: And the bottom view of the bobbin, the first and the second coil are provided for the above-mentioned first preferred embodiment; and the seventh diagram is the bottom view of the cover provided by the first preferred embodiment. ; Figure; • The eight-figure scale provided by the above-mentioned i-th preferred embodiment of the transformer, the bottom-view stereoscopic domain of the transformer is provided, and the combination of the transformer is provided as the circuit diagram of the above-mentioned first-h U The contribution of the output unit provided by Zhuojiajiao's example The body diagram is provided for the transformer 纮 f 柄 of the second preferred embodiment of the present invention. The third embodiment of the preferred embodiment of the transformer is provided. The set of the fourth preferred embodiment of the transformer for the creation of the transformer is provided by the fifteenth figure of the transformer, and the set of the transformer is provided with a set of 7 20 M304093; the sixteenth figure is provided by the creation An exploded perspective view of the transformer of the fifth preferred embodiment. 5

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Referring to the drawings, a high-pressure lamp driving system 1 is provided for the first preferred embodiment of the present invention, having a switching circuit ω, a transformer unit 2〇, and an output unit 30, which enables: As shown in the first and second figures, the switch circuit includes a DC power supply 11, an electronic power switch 12, and a pulse modulation ic 13. The DC power supply 11 is an electronic device in the tilting electronic power 12 = operation = - DC input terminal group 110 to input DC operation power i to the private power switch 12' The electronic power switch 12 is mainly composed of a plurality of navigation members, having - AC - end group 120: = special horse, low standard The voltage signal of the bit, the pulse wave modulation η is a circuit of the pulse=degree modulation, and the electronic power switch 12 of the working cycle and the frequency can be determined by the wheel (four), and the second figure is the application circuit of the embodiment. The pulse switching 1c 13 is used to switch the switching of the pen crystals 121, and the eclipse is controlled by the timing control, and the output group 120 (2). ^ If the tiger passes - the capacitance C to the change, refer to the path of the transformer 20 as provided by the first embodiment, the surface 20 is composed of a primary side coil group 2 - two ρ = group 22 and - The magnetic accompaniment circuit consisting of 23 magnets can be pulled as shown in the fourth figure—the two input and the output of the output are 8 20 M3 04093, and the power supply can be connected to at least four sets of high-pressure lamps. The output load of the transformer has a pair of two bobbins 24, 25, a cover 26 and a two-E core 230, wherein each of the bobbins 24, 25 is tubular with a hollow portion 240, 250 For the structure, as shown in FIG. 5, the two bobbins 24 are provided with a convex portion 241a, 251a and a concave portion respectively adjacent to one of the side edges 241, 25A.

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The other portions 241b and 251b are provided with a plurality of metal pins 242 and 252. The two bobbins 24 and 25 are opposed to each other by the convex portions 241a and 251a and the concave portions 24b and 251b, and are formed in parallel in parallel. In addition, please refer to the sixth figure for reference, each of the bobbins 24, 25 is wound with an enameled wire to form a first, a ring 211 212 and a brother-one coil 221, 222, corresponding to two metal joints 242a, 252a The windings of the first coils 211, 212 are electrically connected to the AC output terminal group 120, and the first coils 211, 212 are formed into the primary side coil group 21 as shown in FIG. Each of the bobbins 24 and 25 is electrically connected to the winding start and end points of the second coils 221 and 222 by four metal joints 242b and 252b, and electrically connected to the output unit to make some second The coils 221 and 222 form the second side line f group 22 as shown in the third figure; please refer to the seventh figure, the cover body % has two receiving portions 261 corresponding to the two bobbins 24, 25, 262 and one of the insertion portions (6) and the ends of each of the accommodating portions=b 262, and the insertion portions are added and added Each of the winding frames 24, 25 hollow portions 240, 250, the two receiving portions, 262 for embedding the two winding frames 24, 25, the eighth figure refers to; please refer to the fourth and ninth drawings The E-type magnetic core 23〇 is opposite to the junction two P 4戎 core group 23, and each of the E-type cores 23 has two inner magnetic flux portions 23 232 and an outer magnetic flux portion 233, and the inner magnetic flux portions 231 and 232 are respectively provided for each of the insertion portions 263 and 264 and are disposed in the two empty portions 24〇 and 25〇, and each of the external magnetic flux portions 232 may be disposed at the cover body 26. The second housing portion 26i is added between the two. 5 15 Please refer to the figure-reference, the output unit 3 〇 has a plurality of impedance matching devices 3, a plurality of lamps 32, a current stable spread % and an electric fresh set 34, the impedance matching device 31 Corresponding to the electrical connection of each swear 2G ' _ thief to achieve each of the lamp 2 'the electric _ wire set & electrically connected to the illuminating lamp 32 and the switching circuit 10 pulse wave modulation Μ M ~ , A 1 " ensures that the % flow flowing through the path of each of the lamps 2 and 32 is the same. The voltage stabilizing device 34 is electrically connected to the voltage device 20, the pulse wave modulation IC 13 and the lamps: 32 for load regulation and voltage protection, to avoid . The lamp official image, and the function of the aging of the 32-shaped or lamp tube FI ^ - Pn ^ Ί 遂 , , , , 请 请 如 如 如 如 如 = = = = = = = = = = = = = = = = = The application of the electric power = the discussion of the above is known as the transformer 20 has a more conventional use = the other brother - the coil 211, 212 and the second coil 221, 222, so the AC output group 12 〇 屮 吞Up to + r,, the AC voltage signal to drive the current production technology j, converted to a larger power I Gu ^ Valley C, the transformer 20, the impedance matchers 3 i to, m32 constitute the high-voltage lamp # drive 1 1 of the hybrid network, and the electronic power _ 12 provides high-fresh network, by the transformer P20f... 乂 唬 唬 , , , , , , , , , , , , , , , , , , , 配合 配合 配合 配合 配合 线圈 线圈 线圈 线圈 线圈 线圈 线圈 线圈22 to increase the AC, the vibration effect and the high load quality factor can be 10 20 M304093 output appropriate AC voltage signal to drive the lamps 32 and because the 23 bis E-type structure is to make the external magnetic flux 232 is disposed between the two 7-port portions 231, 232, and there is no phenomenon that the transformer 22 is leaked as described above. Therefore, the transformer 2G can be made. The secondary side coil group 22 = stable voltage signal, the light of the lamp f 32 is stable and maintains the quality of the display. It is also worth mentioning that 'to prevent the aging of the coil, this creation is more like the tenth-figure The transformer 4 of the second preferred embodiment is a circular bobbin structure having two bobbins 41, 42, a cover Μ 1 〇 and a second E core 44 ′ in addition to the above The embodiment provides the same electrical functional characteristics, and the difference is that the body 410, 420 and the hollow portion 4n, 42 of the winding frame 41, 42 are in the shape of the cover 43 The portions 431 and 432 and the two inner magnetic flux portions 44 442 of the E-shaped magnetic cores 44 have a circular arc-shaped outer structure for winding the wire 15 turns. The hollow portions 4U, 42 and the inner magnetic flux portions 441 and 442 are designed to have circular arc shapes corresponding to the body portions 41 and 420, so that the two inner magnetic flux portions 441 and 442 can be tightly respectively. It is fitted into each of the hollow portions 4n: 421 to maintain the uniform magnetic field of the one e-type magnetic core 44, so that metal wires such as enameled wires can be avoided in each of the windings. When winding 41〇 on 42 and 42, the insulating protective film on the outer layer of the enameled wire is tough due to the turning at the right angle, causing the coil to be short-circuited, so that the impedance of the coil itself changes, causing impedance mismatch between the lamps. The magnetic core group of the transformer provided by the present invention is not limited to the structure of the E-type magnetic core, and can be the third M304093 and the fourth preferred embodiment respectively as shown in the twelfth and fourteenth embodiments. One of the transformers 5 〇, 6 提供 is provided, wherein: the reference to the twelfth and thirteenth drawings, the transformer 5 〇 has the two bobbins 24, 25, the cover 26 and the magnetic group 51, The core address 5

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a combination structure of an E-mail 511 and a one-character mail 512, so that the magnetic flux portion and the outer magnetic flux portion of the magnetic ribs are all on the E-type magnetic 511. The functional characteristics of 51 are equivalent to those provided by the above examples. Please refer to the fourteenth and fifteenth drawings. The transformer 6 has the two bobbins 24, 25, the cover 26 and a magnetic core, a group 61, and the magnetic core group In the combined structure of 611, the core group 61 also has the same functional characteristics as those provided by the first preferred embodiment described above. However, the number of lamps that can be driven by the transformer provided by this creation can vary with the number of wires wound by the second coil. If there is a higher brightness and more lamps & (4), it can be as the sixteenth. _ shows, for the fifth best example of the creation, the example provides a transformer of 7G output, which can be connected to at least eight sets of high-voltage lamps. It has two windings _ 71, 72 and a cover. The 73 and the two E-type magnetic core 74', wherein the cover 73 and the two e-type magnetic cores 2 can be the same as those mentioned in the above-mentioned first-complementary embodiment, and the second and second windings 71, 72 is a second coil provided by the above-mentioned embodiment, which is provided with a pair of 1* knife positions, so that each of the winding frames 7 is provided with more metal pins 75 electrically connected to the wound coils. Taking the bobbin 72 as an example, the metal pin 75a is electrically connected to the first coil, and the remaining metal pins 75b are connected to the second coil, since the transformer is supplied in two sets of first coils. AC voltage 12 20 M304093 Signal input, can load and interact with multiple sets of second coils on the same magnetic pole without splitting other winding frames The group having the functional properties of higher pressure than the conventional load. However, the above descriptions are only for the preferred embodiments of the present invention. It is intended that the equivalent structural changes of the present invention and the scope of the patent application should be included in the scope of the present patent.

13 M3 04093 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit block diagram showing a first preferred embodiment of the present invention, which is a schematic diagram of an application circuit of the switch circuit provided in the above-described first preferred embodiment; The fourth embodiment is not provided for the above-mentioned preferred embodiment; the fourth diagram of the transformer is the first preferred perspective view; the view; the fifth figure is provided by the above-mentioned third preferred embodiment. The bottom of the bobbin=6 is the bottom view of the bobbin and the second coil which are provided in the above-mentioned preferred embodiment; 15 Figure; The bottom view of the cover is provided; the first view is the combination of the bottom view transformer of the transformer provided in the first preferred embodiment. The ninth view is the perspective view provided by the first preferred embodiment;红 帛 帛 录 录 录 录 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The exploded stereo of the transformer 14 20 M304093 The thirteenth figure of the dust filter set is a perspective view provided by the third preferred embodiment; the two-dimension iLfi of the fifth embodiment is provided; the figure is provided by the fourth preferred embodiment The sub-system of the transformer is an exploded perspective view of the seventeenth circle of the transformer of the fifth preferred embodiment of the present invention. 15 M304093 [Key component symbol description] 1 High pressure lamp drive system 5

Switch circuit no DC input group U0 AC output group 13 Pulse modulation 1C 11 DC power supply 12 Electronic power switch 121 transistor

10 20, 40, 50, 60, 70 Transformer 21 - secondary coil set 211, 212 first coil 22 primary side coil set 221, 222 second coil 23, 5 b 61 core set 230, 44 ' 511, 74E type Magnetic fluxes 231, 232, 441, 442, 51a magnetic flux portions 233, 51b outer magnetic flux portions 24, 25' 41, 42, 7 72 bobbins 240, 250, 4U, 421 hollow portions 241, 251 sides 241a, 251a convex portions 241b, 251b concave portions 242, 252, 242a, 252a, 242b, 252b, 75, 75a, 75b metal pins 26, 43, 73 cover portions 261, 262 housing portions 263, 264, 431, 432 Setting unit 30 output unit 31 impedance matching unit 32 lamp 34 voltage stabilizing device 512 - font core 33 current stabilizing device 410, 420 body 611U core 16 20

Claims (1)

M3 04093 IX. Patent application scope: 1 · A high-pressure lamp driving system, comprising: a switching circuit having an alternating current wheel end stage; 10 A transformer has a plurality of pairs of winding frames and a magnetic core group, and each pair of two 1 winding frames is arranged side by side, and each of the winding frames is provided with a first coil and a plurality of pairs of second a coil, the first coil and the second coil are all formed by winding a metal wire, and the first coils are electrically connected to the alternating current wheel end group, the magnetic core group is made of a magnetic material, and has two inner magnets a through portion and an outer magnetic flux portion, the two inner magnetic flux portions are disposed in the plurality of winding frames, the outer magnetic flux portion is disposed between the pair of winding frames; and, the plurality of lamps, each The lamp tube outputs a current close to each other, and each of the second coils is electrically connected to at least one of the lamps. 2 · According to the application of the high-fiber tube drive system described in the special fiber enclosure item, the switch circuit has a pulse-wave modulation and a plurality of transistors, and the transistors are electrically connected to the pulse-wave modulation IC and the communication (4) End group, the pulse wave modulation 1C can be transmitted (4) The digital position of the work position and the frequency control gamma to the transistors, so that the exchange such as the end group such as (four) order (four) of the alternating current Lixun, around the first item The high-tube drive system is described as "" Ai thinks that the four-in-one presser frame of the four-input wheel is wound around the second coil. ~Deep 4. The high-voltage lamp drive system according to item 1 of the patent application scope is a two-input and eight-output step-up transformer, and each of the winding wires is wound around four of the two coils. 17 20 1 · A type of transformer, including: jy[3 04093 pairs of multiple winding frames, each pair of two of which are arranged side by side, each of which has a first coil and a pair a plurality of second coils, wherein the first coil and the second coil are formed by winding a metal wire; a magnetic core group made of a magnetic material, having two parallel magnetic portions and an external magnetic field a portion of the outer magnetic flux portion disposed between the two inner magnetic flux portions, wherein the two inner magnetic flux portions are disposed in the bobbins, and the outer magnetic flux portion is disposed between the plurality of bobbins; a cover body having two receiving portions, the two receiving portions juxtaposed to cover the plurality of winding frames, wherein the two inner magnetic fluxes are respectively disposed in the respective receiving portions, and the outer magnetic flux 10 portion is located in the cover body The upper part is between the two accommodating parts. 6 · According to the transformer described in claim 5, each pair of the winding frames is opposite to one side of the adjacent one, and the other sides are provided with a plurality of metal pins, each of the first coils And the winding of the second coil is electrically connected to each of the metal pins. 15 7 . The transformer according to claim 5, wherein each of the transformers has a tubular structure having a hollow portion, and the cover body has no insertion portion at each end of the receiving portion. The shape of the portion is the same as the cross-sectional shape of each of the hollow portions, and the magnetic core group is inserted through the insertion portion so that the two inner magnetic flux portions are fitted to the two hollow portions. According to the transformer of the seventh aspect of the patent application, the magnetic core E-shaped magnetic core has a structure in which the inner magnetic flux portion and the outer magnetic flux are approximately two-folded. The E-shaped magnetic core. 9 according to the transformer of the scope of claim 7, the magnetic core, and the combination structure of the two E-type magnetic core and the one-word magnetic core, the two internal magnetic fluxes 18 M304093 and the external magnetic flux are Located on the E-type magnetic. 1〇. According to the seventh paragraph of the patent application scope, the anger group is a combined structure of four u-shaped magnetic cores, each of which has a quarter of a portion located at (10) α (four) the outer magnetic flux 11· For the scope of the patent, the fifth winding frame has a body portion, and the winding angle of the portion is from % to _. - Xiang Wei in the nuclear body The second: the scope of the patent application, according to the 11th article, according to the application of the scope of claim 12, the shape of the pressure of the inner magnetic flux is the body part _ body reduction. What, 19