CN203482312U - An integrated multipath power supply circuit used in a liquid crystal TV set - Google Patents
An integrated multipath power supply circuit used in a liquid crystal TV set Download PDFInfo
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- CN203482312U CN203482312U CN201320474293.8U CN201320474293U CN203482312U CN 203482312 U CN203482312 U CN 203482312U CN 201320474293 U CN201320474293 U CN 201320474293U CN 203482312 U CN203482312 U CN 203482312U
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- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 9
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 abstract description 35
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
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Abstract
The utility model discloses an integrated multipath power supply circuit used in a liquid crystal TV set. The integrated multipath power supply circuit comprises a first resistor to an eleventh resistor, a first capacitor to a sixteenth capacitor, a first inductor to a third inductor, a DC power supply, a power management chip, a first voltage-regulator tube, a second voltage-regulator tube, a first diode to a seventh diode, a multi-coil transformer, an optical coupler, and a silicon controlled rectifier. Compared with a product in the prior art, the integrated multipath power supply circuit integrates multiple power supplies required by a liquid crystal TV set in the prior art and is capable of simultaneously outputting different voltage to satisfy different requirements of multiple paths, thereby achieving advantages of preventing most electronic elements, effective saving production cost, decreasing product weight and product size, and facilitating popularization.
Description
Technical field
The utility model relates to a kind of internal circuit of LCD TV, particularly a kind of for the integrated multiple power supplies circuit in LCD TV.
Background technology
Liquid crystal display, is called for short LCD (Liquid Crystal Display).First liquid crystal display appears at early 1970s in the world, is referred to as TN-LCD (twisted-nematic) liquid crystal display.Although be monochromatic demonstration, it has still been generalized to the fields such as electronic watch, calculator.The eighties, the appearance of STN-LCD (supertwist is to row) liquid crystal display, TFT-LCD (thin-film transistor) LCD Technology is developed simultaneously, but still prematurity of liquid crystal technology is difficult to popularize.At the beginning of the nineties at the end of the eighties, Japan has grasped STN-LCD and TFT-LCD production technology, and LCD industry starts high speed development.And the internal power supply required voltage of LCD TV of the prior art is not respectively thought together, must adopt a plurality of power circuits to power, therefore just caused adopting the quantity of electronic component, not only circuit structure is complicated, and with high costs, and increased the volume and weight of LCD TV, be unfavorable for promoting.
Summary of the invention
The purpose of this utility model is to provide a kind of for the integrated multiple power supplies circuit in LCD TV.
For achieving the above object, the utility model is implemented according to following technical scheme:
The utility model comprises DC power supply, power management chip, the first resistance to the 11 resistance, the first electric capacity to the 16 electric capacity, the first inductance to the three inductance, the first voltage-stabiliser tube, the second voltage-stabiliser tube, the first diode to the seven diodes, multi-coil transformer, optical coupler and controllable silicon, the anodal while of described DC power supply and the first end of described the first resistance, the positive pole of described power management chip, the control signal input of described power management chip, the first end of described the 16 electric capacity, the first end of described the 7th electric capacity is connected with the first end of described multi-coil transformer secondary output the second coil, the negative pole while of described DC power supply and the positive pole of described the first voltage-stabiliser tube, the first end of described the second resistance, the first end of described the second electric capacity is connected with the first end of described multi-coil primary, the second end of described the first resistance is connected with the first end of described the first electric capacity, the second end while of described the first electric capacity and the negative pole of described power management chip, the second end of described multi-coil primary is connected with the positive pole of described the first diode, the negative pole of described the first diode is connected with the negative pole of described the first voltage-stabiliser tube, the second end of described the second resistance is connected with the modulation signal input of described power management chip, the control signal output of described power management chip is connected with the emitter of phototriode in the first end of described the 11 resistance and described optical coupler simultaneously, the second end of described the 11 resistance is connected with the second end of described the 16 electric capacity, the second end while of described the second electric capacity and the 4th tap of described multi-coil transformer secondary output the first coil, the first end of described the 3rd electric capacity, the first end of described the 4th electric capacity, the first end of described the 5th electric capacity, the first end of described the 6th electric capacity, the negative pole of described the second voltage-stabiliser tube, the first end of described the 11 electric capacity, the first end of described the 12 electric capacity, the first end of described the 13 electric capacity, the first end of described the 14 electric capacity, the first end of described the 15 electric capacity, the first end of described the tenth resistance, the first end of described the 8th resistance, described silicon controlled is anodal to be connected with the first end of described the 9th electric capacity, the first end of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the second diode, the first tap of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the 3rd diode, the second tap of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the 4th diode, the 3rd tap of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the 5th diode, the second end of described multi-coil transformer secondary output the first coil is connected with the negative pole of described the 6th diode, the second end of described multi-coil transformer secondary output the second coil is connected with the positive pole of described the 7th diode, the negative pole while of described the second diode and the second end of described the 3rd electric capacity, the second end of described the 15 electric capacity is connected with the second end of described the tenth resistance, the negative pole of described the second diode is the first power output end, the negative pole of described the 3rd diode is connected with the first end of described the first inductance with the second end of described the 4th electric capacity simultaneously, the second end of described the first inductance is connected with the second end of described the 14 electric capacity and is second source output, the negative pole while of described the 4th diode and the second end of described the 5th electric capacity, the first end of described the second inductance, the first end of described the 4th resistance is connected with the first end of described the 5th resistance, the second end of described the second inductance is connected with the first end of described the 9th resistance with the second end of described the 13 electric capacity simultaneously, the second end of described the second inductance is the 3rd power output end, the negative pole of described the 5th diode is connected with the first end of described the 3rd inductance with the second end of described the 6th electric capacity simultaneously, the second end of described the 3rd inductance is connected with the first end of described the 7th resistance with the second end of described the 12 electric capacity simultaneously, the second end of described the 3rd inductance is the 4th power output end, the anodal of described the 6th diode is connected with the first end of described the 3rd resistance with the second end of described the 8th electric capacity simultaneously, the second end of described the 3rd resistance is connected with the second end of described the 11 electric capacity with the positive pole of described the second voltage-stabiliser tube simultaneously, the second end of described the 3rd resistance is the 5th power output end, the negative pole of described the 7th diode is connected with the collector electrode of phototriode in the second end of described the 7th electric capacity and described optical coupler simultaneously, in described optical coupler, the positive pole of light-emitting diode is connected with the first end of described the 4th resistance, the negative pole while of the interior light-emitting diode of described optical coupler and the second end of described the 5th resistance, the first end of described the 6th resistance, the second end of described the 9th electric capacity is connected with described silicon controlled negative pole, the second end of described the 6th resistance is connected with the first end of described the tenth electric capacity, the second end while and described silicon controlled control end of described the tenth electric capacity, the second end of described the 8th resistance, the second end of described the 7th resistance is connected with the second end of described the 9th resistance.
Compared with prior art, the integrating of multiple power sources that the utility model needs LCD TV in prior art, can export obstructed voltage simultaneously, difference for multichannel needs, thereby reduced most of electronic component, effectively saved cost of manufacture, alleviated product weight and dwindled the volume of product, be conducive to promote.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, in illustrative examples and the explanation of this utility model, is used for explaining the utility model, but not as to restriction of the present utility model.
As shown in Figure 1: the utility model comprises DC power supply DC, power management chip IC1, the first resistance R 1 to the 11 resistance R 11, the first capacitor C 1 to the 16 capacitor C 16, the first inductance L 1 is to the 3rd inductance L 3, the first voltage-stabiliser tube DW1, the second voltage-stabiliser tube DW2, the first diode D1 to the seven diode D7, multi-coil transformer T, optical coupler IC2 and controllable silicon IC3, the anodal while of DC power supply DC and the first end of the first resistance R 1, the positive pole of power management chip IC, the control signal input of power management chip IC, the first end of the 16 capacitor C 16, the first end of the 7th capacitor C 7 is connected with the first end of T level the second coil of multi-coil transformer, the negative pole while of DC power supply DC and the positive pole of the first voltage-stabiliser tube DW1, the first end of the second resistance R 2, the first end of the second capacitor C 2 is connected with the elementary first end of multi-coil transformer T, the second end of the first resistance R 1 is connected with the first end of the first capacitor C 1, the second end while of the first capacitor C 1 and the negative pole of power management chip IC, the second elementary end of multi-coil transformer T is connected with the positive pole of the first diode D1, the negative pole of the first diode D1 is connected with the negative pole of the first voltage-stabiliser tube DW1, the second end of the second resistance R 2 is connected with the modulation signal input of power management chip IC, the control signal output of power management chip IC is connected with the emitter of phototriode in the first end of the 11 resistance R 11 and optical coupler IC2 simultaneously, the second end of the 11 resistance R 11 is connected with the second end of the 16 capacitor C 16, the second end while of the second capacitor C 2 and the 4th tap of T level the first coil of multi-coil transformer, the first end of the 3rd capacitor C 3, the first end of the 4th capacitor C 4, the first end of the 5th capacitor C 5, the first end of the 6th capacitor C 6, the negative pole of the second voltage-stabiliser tube DW2, the first end of the 11 capacitor C 11, the first end of the 12 capacitor C 12, the first end of the 13 capacitor C 13, the first end of the 14 capacitor C 14, the first end of the 15 capacitor C 15, the first end of the tenth resistance R 10, the first end of the 8th resistance R 8, the positive pole of controllable silicon IC3 is connected with the first end of the 9th capacitor C 9, the first end of T level the first coil of multi-coil transformer is connected with the positive pole of the second diode D2, the first tap of T level the first coil of multi-coil transformer is connected with the positive pole of the 3rd diode D2, the second tap of T level the first coil of multi-coil transformer is connected with the positive pole of the 4th diode D4, the 3rd tap of T level the first coil of multi-coil transformer is connected with the positive pole of the 5th diode D5, the second end of T level the first coil of multi-coil transformer is connected with the negative pole of the 6th diode D6, the second end of T level the second coil of multi-coil transformer is connected with the positive pole of the 7th diode D7, the negative pole while of the second diode D2 and the second end of the 3rd capacitor C 3, the second end of the 15 capacitor C 15 is connected with the second end of the tenth resistance R 10, the negative pole of the second diode D2 is the first power output end U1+30V, the negative pole of the 3rd diode D3 is connected with the first end of the first inductance L 1 with the second end of the 4th capacitor C 4 simultaneously, the second end of the first inductance L 1 is connected with the second end of the 14 capacitor C 14 and is second source output U2+18V, the negative pole while of the 4th diode D4 and the second end of the 5th capacitor C 5, the first end of the second inductance L 2, the first end of the 4th resistance R 4 is connected with the first end of the 5th resistance R 5, the second end of the second inductance L 2 is connected with the first end of the 9th resistance R 9 with the second end of the 13 capacitor C 13 simultaneously, the second end of the second inductance L 2 is the 3rd power output end U3+5V, the negative pole of the 5th diode D5 is connected with the first end of the 3rd inductance L 3 with the second end of the 6th capacitor C 6 simultaneously, the second end of the 3rd inductance L 3 is connected with the first end of the 7th resistance R 7 with the second end of the 12 capacitor C 12 simultaneously, the second end of the 3rd inductance L 3 is the 4th power output end U4+3.3V, the anodal of the 6th diode D6 is connected with the first end of the 3rd resistance R 3 with the second end of the 8th capacitor C 8 simultaneously, the second end of the 3rd resistance R 3 is connected with the second end of the 11 capacitor C 11 with the positive pole of the second voltage-stabiliser tube DW2 simultaneously, the second end of the 3rd resistance R 3 is the 5th power output end U5-5V, the negative pole of the 7th diode D7 is connected with the collector electrode of phototriode in the second end of the 7th capacitor C 7 and optical coupler IC2 simultaneously, in optical coupler IC2, the positive pole of light-emitting diode is connected with the first end of the 4th resistance R 4, the negative pole while of the interior light-emitting diode of optical coupler IC2 and the second end of the 5th resistance R 5, the first end of the 6th resistance R 6, the second end of the 9th capacitor C 9 is connected with the negative pole of controllable silicon IC3, the second end of the 6th resistance R 6 is connected with the first end of the tenth capacitor C 10, the second end while of the tenth capacitor C 10 and the control end of controllable silicon IC3, the second end of the 8th resistance R 8, the second end of the 7th resistance R 7 is connected with the second end of the 9th resistance R 9.
As shown in Figure 1: each road voltage of the utility model is respectively: (U1+30V, 100mA), (U2+18V, 550mA), (U3+5V, 2.5A), (U4+3.3V, 3A), (U5-5V, 100mA).Wherein ,+5V and+3.3V is as main output, all the other each roads are auxiliary output.When DC power supply DC input voltage 220 (1 ± 15%) V, this power supply gross output reaches 38.5W, if adopt wide range input (u=85～265V), gross output just reduces 25W.The utility model also can be used as the power supply in video tape recorder, Video Camera and DVD player.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection range of the present utility model.
Claims (1)
1. one kind for the integrated multiple power supplies circuit in LCD TV, it is characterized in that: comprise DC power supply, power management chip, the first resistance to the 11 resistance, the first electric capacity to the 16 electric capacity, the first inductance to the three inductance, the first voltage-stabiliser tube, the second voltage-stabiliser tube, the first diode to the seven diodes, multi-coil transformer, optical coupler and controllable silicon, the anodal while of described DC power supply and the first end of described the first resistance, the positive pole of described power management chip, the control signal input of described power management chip, the first end of described the 16 electric capacity, the first end of described the 7th electric capacity is connected with the first end of described multi-coil transformer secondary output the second coil, the negative pole while of described DC power supply and the positive pole of described the first voltage-stabiliser tube, the first end of described the second resistance, the first end of described the second electric capacity is connected with the first end of described multi-coil primary, the second end of described the first resistance is connected with the first end of described the first electric capacity, the second end while of described the first electric capacity and the negative pole of described power management chip, the second end of described multi-coil primary is connected with the positive pole of described the first diode, the negative pole of described the first diode is connected with the negative pole of described the first voltage-stabiliser tube, the second end of described the second resistance is connected with the modulation signal input of described power management chip, the control signal output of described power management chip is connected with the emitter of phototriode in the first end of described the 11 resistance and described optical coupler simultaneously, the second end of described the 11 resistance is connected with the second end of described the 16 electric capacity, the second end while of described the second electric capacity and the 4th tap of described multi-coil transformer secondary output the first coil, the first end of described the 3rd electric capacity, the first end of described the 4th electric capacity, the first end of described the 5th electric capacity, the first end of described the 6th electric capacity, the negative pole of described the second voltage-stabiliser tube, the first end of described the 11 electric capacity, the first end of described the 12 electric capacity, the first end of described the 13 electric capacity, the first end of described the 14 electric capacity, the first end of described the 15 electric capacity, the first end of described the tenth resistance, the first end of described the 8th resistance, described silicon controlled is anodal to be connected with the first end of described the 9th electric capacity, the first end of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the second diode, the first tap of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the 3rd diode, the second tap of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the 4th diode, the 3rd tap of described multi-coil transformer secondary output the first coil is connected with the positive pole of described the 5th diode, the second end of described multi-coil transformer secondary output the first coil is connected with the negative pole of described the 6th diode, the second end of described multi-coil transformer secondary output the second coil is connected with the positive pole of described the 7th diode, the negative pole while of described the second diode and the second end of described the 3rd electric capacity, the second end of described the 15 electric capacity is connected with the second end of described the tenth resistance, the negative pole of described the second diode is the first power output end, the negative pole of described the 3rd diode is connected with the first end of described the first inductance with the second end of described the 4th electric capacity simultaneously, the second end of described the first inductance is connected with the second end of described the 14 electric capacity and is second source output, the negative pole while of described the 4th diode and the second end of described the 5th electric capacity, the first end of described the second inductance, the first end of described the 4th resistance is connected with the first end of described the 5th resistance, the second end of described the second inductance is connected with the first end of described the 9th resistance with the second end of described the 13 electric capacity simultaneously, the second end of described the second inductance is the 3rd power output end, the negative pole of described the 5th diode is connected with the first end of described the 3rd inductance with the second end of described the 6th electric capacity simultaneously, the second end of described the 3rd inductance is connected with the first end of described the 7th resistance with the second end of described the 12 electric capacity simultaneously, the second end of described the 3rd inductance is the 4th power output end, the anodal of described the 6th diode is connected with the first end of described the 3rd resistance with the second end of described the 8th electric capacity simultaneously, the second end of described the 3rd resistance is connected with the second end of described the 11 electric capacity with the positive pole of described the second voltage-stabiliser tube simultaneously, the second end of described the 3rd resistance is the 5th power output end, the negative pole of described the 7th diode is connected with the collector electrode of phototriode in the second end of described the 7th electric capacity and described optical coupler simultaneously, in described optical coupler, the positive pole of light-emitting diode is connected with the first end of described the 4th resistance, the negative pole while of the interior light-emitting diode of described optical coupler and the second end of described the 5th resistance, the first end of described the 6th resistance, the second end of described the 9th electric capacity is connected with described silicon controlled negative pole, the second end of described the 6th resistance is connected with the first end of described the tenth electric capacity, the second end while and described silicon controlled control end of described the tenth electric capacity, the second end of described the 8th resistance, the second end of described the 7th resistance is connected with the second end of described the 9th resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474293.8U CN203482312U (en) | 2013-08-06 | 2013-08-06 | An integrated multipath power supply circuit used in a liquid crystal TV set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474293.8U CN203482312U (en) | 2013-08-06 | 2013-08-06 | An integrated multipath power supply circuit used in a liquid crystal TV set |
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| CN203482312U true CN203482312U (en) | 2014-03-12 |
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| CN201320474293.8U Expired - Fee Related CN203482312U (en) | 2013-08-06 | 2013-08-06 | An integrated multipath power supply circuit used in a liquid crystal TV set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376508A (en) * | 2015-11-18 | 2016-03-02 | 深圳创维－Rgb电子有限公司 | High power supply for display device, and display device |
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2013
- 2013-08-06 CN CN201320474293.8U patent/CN203482312U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376508A (en) * | 2015-11-18 | 2016-03-02 | 深圳创维－Rgb电子有限公司 | High power supply for display device, and display device |
| WO2017084291A1 (en) * | 2015-11-18 | 2017-05-26 | 深圳创维－Rgb电子有限公司 | High-power power supply for use in display apparatus, and display apparatus |
| CN105376508B (en) * | 2015-11-18 | 2019-03-12 | 深圳创维－Rgb电子有限公司 | Large power supply and display device for display device |
| US10354570B2 (en) | 2015-11-18 | 2019-07-16 | Shenzhen Skyworth-Rgb Electronic Co., Ltd. | High-power power supply for use with display devices and associated display device |
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Owner name: SHENZHEN XINDONGLIN ELECTRON CO., LTD. Free format text: FORMER OWNER: LIU TAO Effective date: 20141010 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 315700 NINGBO, ZHEJIANG PROVINCE TO: 518105 SHENZHEN, GUANGDONG PROVINCE |
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Effective date of registration: 20141010 Address after: Baoan District Songgang Tangxia street Shenzhen city Guangdong province 518105 Chung Industrial Zone Third Osmanthus Road No. 1 building A Patentee after: Shenzhen xindonglin Electronics Co., Ltd. Address before: 315700, Ningbo County, Zhejiang City, Xiangshan Province West Town Industrial Park Patentee before: Liu Tao |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| EXPY | Termination of patent right or utility model |