CN201438361U - LCD integrated power system and liquid crystal display - Google Patents
LCD integrated power system and liquid crystal display Download PDFInfo
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- CN201438361U CN201438361U CN2009201312344U CN200920131234U CN201438361U CN 201438361 U CN201438361 U CN 201438361U CN 2009201312344 U CN2009201312344 U CN 2009201312344U CN 200920131234 U CN200920131234 U CN 200920131234U CN 201438361 U CN201438361 U CN 201438361U
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- power supply
- switching power
- inverter
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- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model provides an LCD integrated power system and a liquid crystal display, which is suitable for the field of LCD technology, wherein, the power system comprises: an input end for receiving AC, the input end converts the received AC into DC, and then the DC is transmitted to a switching power supply; the input end is connected with the output end of the switching power supply, the DC output by the switching power supply is inversed into AC, and the AC is transmitted to an inverter of the electrical equipment through the output end. In the LCD integrated power system, the AC is directly input into the switching power supply, the electrical energy is saved, meanwhile, the cost of the integrated power system is reduced, and therefore, the utility model is particularly suitable for the liquid crystal display whose machine input power is smaller than that of the national standard.
Description
Technical field
The utility model belongs to technical field of liquid crystal display, relates in particular to a kind of LCD integrating power supply system and LCDs.
Background technology
Present LCD and LCD TV manufacturer are in order to reduce cost, original discrete AC/DC main power board and DC/AC inverter plate are integrated, form LCD integrating power supply (the LCDIntergrated Power System of system, LIPS), show the former figure of the LCD integrating power supply system that prior art provides as Fig. 1.The alternating current input system after circuit of power factor correction (PFC) to heighten power efficiency, export one or more direct current through Switching Power Supply again, one or more direct current of output offers corresponding power unit after corresponding inverter inversion, as module backlight, system power supply etc.
Existing LCD TV promptly adopts above-mentioned LCD integrating power supply system.Yet for the LCD TV of complete machine power less than national standard (75W), adopt this kind LCDs integrating power supply system can cause the increase of electric energy surplus, the waste electric energy is unfavorable for environmental protection.
The utility model content
The purpose of the utility model embodiment is to provide a kind of LCDs integrating power supply system, and the LCD integrating power supply system that LCD TV adopted that being intended to solve prior art provides can cause the increase of electric energy surplus, the problem of waste electric energy.
The utility model embodiment is achieved in that a kind of LCD integrating power supply system, and described system comprises:
Input end receives alternating current, and converts the alternating current that receives to export behind the direct current Switching Power Supply;
Input end connects the output terminal of described Switching Power Supply, and the dc inverter that described Switching Power Supply is exported becomes alternating current, and exports to the inverter of consumer by output terminal.
Aforesaid LCD integrating power supply system, described Switching Power Supply is an inverse-excitation type PWM Switching Power Supply.
Aforesaid LCD integrating power supply system, described inverter is the inverter of full bridge structure.
Aforesaid LCD integrating power supply system, described consumer is a module backlight.
Another purpose of the utility model embodiment is to provide a kind of LCDs, comprises a LCD integrating power supply system, and described LCD integrating power supply system comprises:
Input end receives alternating current, and converts the alternating current that receives to export behind the direct current Switching Power Supply;
Input end connects the output terminal of described Switching Power Supply, and the dc inverter that described Switching Power Supply is exported becomes alternating current, and exports to the inverter of consumer by output terminal.
Aforesaid LCDs, described Switching Power Supply are inverse-excitation type PWM Switching Power Supplies.
Aforesaid LCDs, described inverter are the inverters of full bridge structure.
Aforesaid LCDs, described consumer are module backlight.
Aforesaid LCDs, the size of described LCDs are less than or equal to 32 cun.
In the LCD integrating power supply system that the utility model embodiment provides, the direct input switch power supply of alternating current has been saved electric energy, has reduced the cost of integrating power supply system simultaneously, is specially adapted to the LCDs of complete machine power less than national standard.
Description of drawings
Fig. 1 is the schematic diagram of the LCD integrating power supply system that provides of prior art;
Fig. 2 is the principle of the LCD integrating power supply system that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
In the LCD integrating power supply system that the utility model embodiment provides, the direct input switch power supply of alternating current has been saved electric energy.
Fig. 2 shows the principle of the LCD integrating power supply system that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model embodiment.
The input end of Switching Power Supply 11 receives alternating current, and the alternating current of input exported to the connected inverter 12 of input end after converting direct current to, after inverter 12 becomes alternating current with its dc inverter that receives, export to consumer by its output terminal, as module backlight, system power supply etc.
Among the utility model embodiment, Switching Power Supply 11 adopts inverse-excitation type PWM Switching Power Supply, also can be the Switching Power Supply of other form; In addition, Switching Power Supply 11 can be single channel output, also can be the multichannel output of different voltages, and among the utility model embodiment, Switching Power Supply 11 adopts single channel output; Inverter 12 adopts the inverter of full bridge structure particularly, can improve the conversion efficiency of inverter 12.
The utility model embodiment also provides a kind of LCDs, and it comprises as mentioned above a LCD integrating power supply system.Wherein, the size of LCDs is less than or equal to 32 cun.
In the LCD integrating power supply system that the utility model embodiment provides, the direct input switch power supply of alternating current has been saved electric energy, has reduced the cost of integrating power supply system simultaneously, is specially adapted to the LCDs of complete machine power less than national standard; In addition, inverter bridge adopts full bridge structure, has improved the conversion efficiency of inverter bridge.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. LCD integrating power supply system is characterized in that described system comprises:
Input end receives alternating current, and converts the alternating current that receives to export behind the direct current Switching Power Supply;
Input end connects the output terminal of described Switching Power Supply, and the dc inverter that described Switching Power Supply is exported becomes alternating current, and exports to the inverter of consumer by output terminal.
2. LCD integrating power supply as claimed in claim 1 system is characterized in that described Switching Power Supply is an inverse-excitation type PWM Switching Power Supply.
3. LCD integrating power supply as claimed in claim 1 system is characterized in that described inverter is the inverter of full bridge structure.
4. as each described LCD integrating power supply system of claim 1 to 3, it is characterized in that described consumer is a module backlight.
5. a LCDs comprises a LCD integrating power supply system, it is characterized in that, described LCD integrating power supply system comprises:
Input end receives alternating current, and converts the alternating current that receives to export behind the direct current Switching Power Supply;
Input end connects the output terminal of described Switching Power Supply, and the dc inverter that described Switching Power Supply is exported becomes alternating current, and exports to consumer by output terminal.
6. LCDs as claimed in claim 5 is characterized in that, described Switching Power Supply is an inverse-excitation type PWM Switching Power Supply.
7. LCDs as claimed in claim 5 is characterized in that, described inverter is the inverter of full bridge structure.
8. LCDs as claimed in claim 5 is characterized in that, described consumer is a module backlight.
9. as each described LCDs of claim 5 to 8, it is characterized in that the size of described LCDs is less than or equal to 32 cun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201312344U CN201438361U (en) | 2009-04-27 | 2009-04-27 | LCD integrated power system and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201312344U CN201438361U (en) | 2009-04-27 | 2009-04-27 | LCD integrated power system and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438361U true CN201438361U (en) | 2010-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201312344U Expired - Fee Related CN201438361U (en) | 2009-04-27 | 2009-04-27 | LCD integrated power system and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544782A (en) * | 2012-07-10 | 2014-01-29 | 温州医学院附属第一医院 | Coin-operated medical record self-service machine |
-
2009
- 2009-04-27 CN CN2009201312344U patent/CN201438361U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544782A (en) * | 2012-07-10 | 2014-01-29 | 温州医学院附属第一医院 | Coin-operated medical record self-service machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20130427 |