CN202587188U - Liquid crystal display television (LCD TV) power supply device for integrated multi-voltage output - Google Patents
Liquid crystal display television (LCD TV) power supply device for integrated multi-voltage output Download PDFInfo
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- CN202587188U CN202587188U CN 201220211162 CN201220211162U CN202587188U CN 202587188 U CN202587188 U CN 202587188U CN 201220211162 CN201220211162 CN 201220211162 CN 201220211162 U CN201220211162 U CN 201220211162U CN 202587188 U CN202587188 U CN 202587188U
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Abstract
The utility model discloses a liquid crystal display television (LCD TV) power supply device for an integrated multi-voltage output. The LCD TV supply device for the integrated multi-voltage output comprises a linear power supply circuit, a standby control circuit, a switch circuit, a voltage-change circuit and an output control circuit, wherein an input end of the linear power supply circuit is connected with an alternating current power, an output end of the linear power supply circuit is connected with an input end of the standby control circuit, one end of the switch circuit is respectively connected with the alternating current power and an output of the standby control circuit, the other end of the switch circuit is connected with an input end of the voltage-change circuit, an output end of the voltage-change circuit is connected with an input end of the output control circuit, and an output end of the output control circuit comprises three voltage output interfaces. The LCD TV supply device for the integrated multi-voltage output provides multiple voltage outputs so as to satisfy an output requirement of an LCD TV and improve practicability.
Description
Technical field
The utility model relates to power technique fields, relates in particular to a kind of liquid crystal television power supply device of integrated multivoltage output.
Background technology
Along with the development of TV tech, LCD TV relies on advantages such as large-screen, low thickness and high definition, becomes the main flow in TV market gradually.See also Fig. 1, be the structural representation of existing liquid crystal television power supply device; As shown in Figure 1, the liquid crystal television power supply device mainly comprises: readiness control circuit 11, power-switching circuit 12 and output control circuit 13.Wherein, voltage conversion circuit 12 converts electric main into each circuit of television set required voltage, for each circuit of television set provides working power; Particularly, when television set was in normal operating condition, voltage conversion circuit 12 converted electric main the working power of output control circuit 13 into, and output dc voltage is the TV power supply; When television set was in holding state, voltage conversion circuit 12 converted electric main into readiness control circuit 11 required working power, was the readiness control circuit power supply.
Because traditional TV internal circuit works under direct voltage, so traditional tv generally only has the direct voltage output interface, and output DC is that the TV internal circuit is supplied power.Yet along with the development of liquid crystal tv technology, existing most of LCD TV has been supported many expansion interfaces; For example: USB interface; Adopting the direct current supply pattern of existing power supply device, can't effectively be the expansion interface power supply of LCD TV, can't satisfy the voltage output demand of LCD TV; Cause the expansion interface of LCD TV to work, thereby reduced practicality.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of liquid crystal television power supply device of integrated multivoltage output is provided, and multiple voltage output can be provided, and satisfies the output demand of LCD TV, improves practicality.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of liquid crystal television power supply device of integrated multivoltage output, comprises linear power supply circuit, readiness control circuit, switching circuit, voltage conversion circuit and output control circuit; Wherein,
The input of said linear power supply circuit is connected to electric main, and the output of said linear power supply circuit is connected with the input of said readiness control circuit;
One end of said switching circuit is connected with the output of said electric main and said readiness control circuit respectively; The other end of said switching circuit is connected with the input of said voltage conversion circuit, and the output of said voltage conversion circuit is connected with the input of said output control circuit;
The output of said output control circuit comprises three voltage output interfaces.
Wherein, the output of said output control circuit comprises: direct voltage output interface, high pressure output interface and USB output interface.
Wherein, said output control circuit comprises DC-DC voltage conversion circuit, AC-DC voltage conversion circuit and USB voltage conversion circuit;
The input of said DC-DC voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said DC-DC voltage conversion circuit is connected with said direct voltage output interface;
The input of said AC-DC voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said AC-DC voltage conversion circuit is connected with said high pressure output interface;
The input of said USB voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said USB voltage conversion circuit is connected with said USB output interface.
Wherein, said voltage conversion circuit comprises filter circuit and rectification circuit;
The input of said filter circuit is connected with said switching circuit, and the output of said filter circuit is connected with the input of said rectification circuit, and the output of said rectification circuit is connected with the input of said output control circuit.Implement the utility model embodiment, have following beneficial effect:
The liquid crystal television power supply device of the integrated multivoltage output of the utility model embodiment; Its output control circuit comprises three voltage output interfaces; Can be adaptive the demand of the different circuit of LCD TV and interface, multiple powering mode is provided, satisfy the output demand of LCD TV; Improve the availability of LCD TV interface, improved practicality.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the liquid crystal television power supply device of existing integrated multivoltage output;
The structural representation of the liquid crystal television power supply device of the integrated multivoltage output that Fig. 2 provides for the utility model embodiment.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The liquid crystal television power supply device of the integrated multivoltage output of the utility model embodiment; Its output control circuit comprises three voltage output interfaces; Can be adaptive the demand of the inner different circuit of LCD TV and interface, multiple powering mode is provided, satisfy the output demand of LCD TV; Improve the availability of LCD TV interface, improved practicality.
See also Fig. 2, the structural representation of the liquid crystal television power supply device of the integrated multivoltage output that provides for the utility model embodiment.This device comprises: linear power supply circuit 101, readiness control circuit 102, switching circuit 103, voltage conversion circuit 104 and output control circuit 105; Wherein,
The input of this linear power supply circuit 101 is connected to electric main, and the output of said linear power supply circuit 101 is connected with the input of said readiness control circuit 102.When TV was in holding state, linear power supply circuit 101 was these readiness control circuit 102 power supplies.Adopt linear power supply circuit 101, its power generally below 1W, the power loss in the time of can reducing television standby greatly.
One end of switching circuit 103 is connected with the output of said electric main with said readiness control circuit 102 respectively; The other end of said switching circuit 103 is connected with the input of said voltage conversion circuit 104, and the output of this voltage conversion circuit 104 is connected with the input of said output control circuit 105.
In concrete the realization; During the television set operate as normal; The shutoff of these switching circuit 103 control readiness control circuits 102, readiness control circuit 102 is not worked, voltage conversion circuit 104 operate as normal; For output control circuit 105 provides the power supply after the conversion, thereby be inner other circuit or interface output services voltage of TV by output control circuit 105.During the television set standby, the shutoff of these switching circuit 103 control voltage conversion circuits 104 makes readiness control circuit 102 under the power supply control of linear power circuit 101, carry out work.
In concrete the realization, said voltage conversion circuit 104 comprises filter circuit and rectification circuit (not shown); The input of said filter circuit is connected with said switching circuit 103, and the output of said filter circuit is connected with the input of said rectification circuit, and the output of said rectification circuit is connected with the input of said output control circuit 105.After 104 pairs of electric mains of voltage conversion circuit carried out a series of processing such as filtering and rectification, electric current was transferred to output control circuit 105 and carries out conversion and control output.
The output of output control circuit 105 comprises three voltage output interfaces.Wherein, these three voltage output interfaces comprise: direct voltage output interface, high pressure output interface and USB output interface.
See also Fig. 2 again, said output control circuit 105 specifically comprises DC-DC voltage conversion circuit, AC-DC voltage conversion circuit and USB voltage conversion circuit.Wherein, the input of said DC-DC voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said DC-DC voltage conversion circuit is connected with said direct voltage output interface.The input of said AC-DC voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said AC-DC voltage conversion circuit is connected with said high pressure output interface.The input of said USB voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said USB voltage conversion circuit is connected with said USB output interface.
In order more clearly to describe the TV electric supply installation that the utility model embodiment provides, will the assembling and the operation principle of this TV electric supply installation be described in detail below.
Each circuit is connected according to structure shown in Figure 2, promptly accomplish the assembling of the TV electric supply installation that the utility model embodiment provides.
When television set normally used, switching circuit 103 control voltage conversion circuits 104 were opened, and voltage conversion circuit 104 is connected with electric main, and the alternating current of civil power input is carried out filtering, rectification processing, and after output control circuit 105 is exported conversion process power supply.Output control circuit 105 is according to the required powering mode of other each circuit of television set inside or interface operate as normal; Output voltage under the corresponding powering mode of control output; Comprise: direct voltage output, high pressure output or USB output, for the operate as normal of other circuit of television set inside or interface is supplied power.
During standby signal that the standby button on receiving remote controller or TV panel sends.Switching circuit 103 control voltage conversion circuits 104 turn-off, and control readiness control circuit 102 simultaneously and open; At this moment, voltage conversion circuit 104 quits work fully, and stopping to provide working power for inner other circuit of output control circuit 105 and television set.The input of linear power supply circuit 101 is connected to electric main, and output is connected to readiness control circuit 102.Linear power supply circuit 101 converts electric main into readiness control circuit 102 working power is provided.
The liquid crystal television power supply device of the integrated multivoltage output of the utility model embodiment; Its output control circuit comprises three voltage output interfaces; Can be adaptive the demand of the different circuit of LCD TV and interface, multiple powering mode is provided, satisfy the output demand of LCD TV; Improve the availability of LCD TV interface, improved practicality.
Above disclosedly be merely a kind of preferred embodiment of the utility model; Certainly can not limit the interest field of the utility model with this; One of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description; And according to the equivalent variations that the utility model claim is done, the scope that still belongs to utility model and contained.
Claims (4)
1. the liquid crystal television power supply device of an integrated multivoltage output is characterized in that, comprises linear power supply circuit, readiness control circuit, switching circuit, voltage conversion circuit and output control circuit; Wherein,
The input of said linear power supply circuit is connected to electric main, and the output of said linear power supply circuit is connected with the input of said readiness control circuit;
One end of said switching circuit is connected with the output of said electric main and said readiness control circuit respectively; The other end of said switching circuit is connected with the input of said voltage conversion circuit, and the output of said voltage conversion circuit is connected with the input of said output control circuit;
The output of said output control circuit comprises three voltage output interfaces.
2. device as claimed in claim 1 is characterized in that, the output of said output control circuit comprises: direct voltage output interface, high pressure output interface and USB output interface.
3. device as claimed in claim 2 is characterized in that, said output control circuit comprises DC-DC voltage conversion circuit, AC-DC voltage conversion circuit and USB voltage conversion circuit;
The input of said DC-DC voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said DC-DC voltage conversion circuit is connected with said direct voltage output interface;
The input of said AC-DC voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said AC-DC voltage conversion circuit is connected with said high pressure output interface;
The input of said USB voltage conversion circuit is connected with the output of said voltage conversion circuit, and the output of said USB voltage conversion circuit is connected with said USB output interface.
4. like each described device of claim 1-3, it is characterized in that said voltage conversion circuit comprises filter circuit and rectification circuit;
The input of said filter circuit is connected with said switching circuit, and the output of said filter circuit is connected with the input of said rectification circuit, and the output of said rectification circuit is connected with the input of said output control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220211162 CN202587188U (en) | 2012-05-11 | 2012-05-11 | Liquid crystal display television (LCD TV) power supply device for integrated multi-voltage output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220211162 CN202587188U (en) | 2012-05-11 | 2012-05-11 | Liquid crystal display television (LCD TV) power supply device for integrated multi-voltage output |
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| Publication Number | Publication Date |
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| CN202587188U true CN202587188U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220211162 Expired - Lifetime CN202587188U (en) | 2012-05-11 | 2012-05-11 | Liquid crystal display television (LCD TV) power supply device for integrated multi-voltage output |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048564A (en) * | 2012-12-20 | 2013-04-17 | 苏州大项智能科技有限公司 | Tester with multiple practical output power supplies |
| CN107105178A (en) * | 2017-04-20 | 2017-08-29 | 深圳市华星光电技术有限公司 | TV set power |
| TWI806022B (en) * | 2021-03-22 | 2023-06-21 | 全漢企業股份有限公司 | Power supply device with multi-voltage output |
-
2012
- 2012-05-11 CN CN 201220211162 patent/CN202587188U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048564A (en) * | 2012-12-20 | 2013-04-17 | 苏州大项智能科技有限公司 | Tester with multiple practical output power supplies |
| CN107105178A (en) * | 2017-04-20 | 2017-08-29 | 深圳市华星光电技术有限公司 | TV set power |
| CN107105178B (en) * | 2017-04-20 | 2019-07-02 | 深圳市华星光电技术有限公司 | TV set power |
| TWI806022B (en) * | 2021-03-22 | 2023-06-21 | 全漢企業股份有限公司 | Power supply device with multi-voltage output |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong province Shenzhen city Longhua District Longhua Street Qing Xiang Lu Qing Hu Bao Industrial Park Science and Technology Park 9 A block 17 building E, F unit Patentee after: SHENZHEN HANQIANG TECHNOLOGY CO., LTD. Address before: 19, S-Z, building 518000, block A, Fortune Plaza, 7002 Shennan Road, Guangdong, Shenzhen, Futian District Patentee before: Shenzhen Hanqiang Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
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| CX01 | Expiry of patent term |