CN205375074U - Power and display device integrate - Google Patents
Power and display device integrate Download PDFInfo
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- CN205375074U CN205375074U CN201521088415.5U CN201521088415U CN205375074U CN 205375074 U CN205375074 U CN 205375074U CN 201521088415 U CN201521088415 U CN 201521088415U CN 205375074 U CN205375074 U CN 205375074U
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Abstract
The utility model discloses a power and display device integrate should integrate the power and input the outside communication electricity including the voltage conversion circuit and the power supply chip that are used for converting external input alternating voltage into the DC voltage, voltage conversion circuit's input, and the voltage conversion circuit output is connected with the power input end of power supply chip, and the power supply chip includes the multiple power supplies output, wherein, the power supply chip is used for becoming the different DC voltage output of multichannel voltage swing with the direct current voltage conversion of voltage conversion circuit input. The utility model discloses an it is simple to integrate power structure, and the cost is lower.
Description
Technical field
This utility model relates to power technique fields, particularly to a kind of integrated power supply and the display device applying this integrated power supply.
Background technology
The display of usual television set needs power supply to provide the different voltage of multichannel to ensure normal operation, wherein the dynamic RAM of display needs 1.5/1.8V voltage, main control chip in display needs 1.2V voltage, other circuit such as USB interface in display then needs 5V voltage, existing power solution is to arrange ac/dc power supply to convert externally input alternating voltage to direct voltage output, peripheral cell and the driving chip of multiple independent DC-DC power supply and correspondence are set again, DC voltage is converted multiple different DC voltage to power to disparate modules in television set, whole TV set power is so made to adopt number of elements many, take PCB surface long-pending also bigger, make relatively costly.
Utility model content
Main purpose of the present utility model is to provide a kind of integrated power supply, it is intended to simplifies the structure of power-supply system and reduces cost.
For achieving the above object, the utility model proposes a kind of integrated power supply, described integrated power supply includes voltage conversion circuit and power supply chip for externally input alternating voltage is converted to DC voltage, the input input external communication electricity of described voltage conversion circuit, described voltage conversion circuit outfan is connected with the power input of described power supply chip, and described power supply chip includes multiple power output end；Wherein, described power supply chip, for converting the DC voltage that described voltage conversion circuit inputs to direct voltage output that plurality of voltages is different.
Preferably, the multiple described power output end of the power end of main control chip and described power supply chip one of them be connected, the end that controls of described main control chip is connected with the controlled end of described power supply chip.
Preferably, described power supply chip also includes LED drive end, and described LED drive end is connected with external LED load.
Preferably, described power supply chip also includes quiet control end, and described quiet control end is connected with the controlled end of outside power amplifier, and the power end of described power amplifier is connected with the outfan of described voltage conversion circuit.
Preferably, described power supply chip also includes sequencing contro end, and described sequencing contro end is connected with the controlled end of time sequence of display device control circuit, and the power end of the sequential control circuit of described display is connected with the outfan of described voltage conversion circuit.
Preferably, described integrated power supply also includes the display lamp for showing described integrated power supply normal operation, and described power supply chip also includes display lamp drive end, is used for driving display lamp luminous.
Preferably, described power supply chip also includes analog digital conversion end, and described analog digital conversion end is connected for manual adjustments power supply chip inner parameter with external key circuit.
Preferably, described power supply chip includes the first power output end, second source outfan and the 3rd power output end；Described second source outfan is connected with the power end of the dynamic RAM of display；Described 3rd power output end is connected with the power end of described main control chip.
This utility model also proposes a kind of display device, described display device includes integrated power supply as above, described integrated power supply includes voltage conversion circuit and power supply chip for externally input alternating voltage is converted to DC voltage, the input input external communication electricity of described voltage conversion circuit, described voltage conversion circuit outfan is connected with the power input of described power supply chip, and described power supply chip includes multiple power output end；The multiple described power output end of the power end of main control chip and described power supply chip one of them be connected, the end that controls of described main control chip is connected with the controlled end of described power supply chip；Wherein, described power supply chip, for converting the DC voltage that described voltage conversion circuit inputs to direct voltage output that plurality of voltages is different.
Technical solutions of the utility model, by being arranged to be converted to externally input alternating voltage voltage conversion circuit and the power supply chip of DC voltage, define a kind of integrated power supply.The unidirectional current that described voltage conversion circuit exports is converted to the unidirectional current output that plurality of voltages varies in size by described power supply chip, with to module for power supply different in display, this integrated power supply, without arranging multiple independent DC-DC power supply, simplifies the structure of power supply, reduces cost.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to the structure according to these accompanying drawings obtains other accompanying drawing.
Fig. 1 is the functional block diagram of the integrated power supply of this utility model preferred embodiment；
Fig. 2 is the structural representation of the integrated power supply of this utility model preferred embodiment.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 100 | Voltage conversion circuit | 300 | Main control chip |
| 200 | Power supply chip |
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
It is to be appreciated that relate to the description of " first ", " second " etc. in this utility model only for descriptive purposes, and it is not intended that instruction or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.Additionally; technical scheme between each embodiment can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme is absent from, also not this utility model require protection domain within.
The utility model proposes a kind of integrated power supply.
Refer to Fig. 1 and Fig. 2, in this utility model embodiment, described integrated power supply includes the voltage conversion circuit 100 for externally input alternating voltage is converted to DC voltage and power supply chip 200, the input input external communication electricity of described voltage conversion circuit 100, described voltage conversion circuit 100 outfan is connected with the power input VDD of described power supply chip 200, and described power supply chip 200 includes multiple power output end；Wherein, described power supply chip 200, for converting the DC voltage that described voltage conversion circuit 100 inputs to direct voltage output that plurality of voltages is different.
It should be noted that, in the present embodiment, this integrated power supply is for the monitor power supply of television set, in usual display, main control chip 300 needs 1.2V (volt) power voltage supply, display random access memory needs 1.5/1.8V power voltage supply, and other circuit such as USB interface then needs 5V voltage, and described power supply chip 200 has been internally integrated three BUCK circuit, being integrated with three buck BUCK circuit specifically, BUCK circuit is the decompression transformation for DC-to-DC.Voltage conversion circuit 100 converts the alternating current of outside civil power 220V to 12V unidirectional current, 12V voltage is converted to 5V, 1.5/1.8V and 1.2V by internal three BUCK circuit and exports by power supply chip 200, power to respectively other circuit such as USB interface, random access memory and main control chip 300, a road BUCK circuit of power supply chip 200 can select output 1.8V or 1.5V.
Technical solutions of the utility model, by being arranged to be converted to externally input alternating voltage voltage conversion circuit 100 and the power supply chip 200 of DC voltage, define a kind of integrated power supply.The unidirectional current that described voltage conversion circuit 100 exports is converted to the unidirectional current output that plurality of voltages varies in size by described power supply chip 200, with to module for power supply different in display, this integrated power supply, without arranging multiple independent direct current/DC source, simplifies power supply architecture, reduces cost.
Referring once again to Fig. 2, specifically, in the present embodiment, described power supply chip U1 (i.e. power supply chip 200 shown in Fig. 1) adopts silicon Cenda (Silergy) company SY8616 chip to realize.The intelligent integrated chip SY8616 of Silergy Corporation, has been internally integrated three road BUCK circuit, a paths of LEDs load driving circuits, rectification circuit, external key input reception circuit and muting control circuit etc..Main control chip U2 (i.e. main control chip 300 shown in Fig. 1) can control output voltage and the electric current of power supply chip U1 tri-road BUCK circuit and LED load drive circuit；This power supply chip U1 also has the function that the monitoring of front voltage monitoring reliability and back-end system voltage is followed the tracks of, and when voltage conversion circuit 100 input voltage is not in normal set point, power supply chip U1 quits work；When tri-power output end output voltages of power supply chip U1 are bigger than normal or less than normal, power supply chip U1 adjusts output voltage in time by detecting and tracking function.
It should be noted that described power supply chip U1 includes the first power output end VCC1, second source outfan VCC2 and the 3rd power output end VCC3 in the present embodiment.First power end VCC1 output voltage is 5V, for powering to other circuit of display, for instance USB circuit.The power end of described second source end VCC2 and the DDR (dynamic RAM) of described display is connected, and second source end VCC2 output voltage is 1.8V or 1.5V.The power end of the 3rd power output end VCC3 and described main control chip U2 is connected, and the 3rd power output end VCC3 output voltage is 1.2V.In the present embodiment, the power input VDD input voltage of described power supply chip U1 is 12V.
Specifically, one of them of the multiple described power output end of the power end of main control chip 300 and described power supply chip 200 is connected, and the end that controls of described main control chip 300 is connected with the controlled end CTR of described power supply chip 200.
It should be noted that main control chip 300 is powered by 200, power management core, main control chip 300 can control the voltage output of power supply chip 200 simultaneously.
Further, described power supply chip 200 also includes LED drive end V-LED, and described LED drive end V-LED is connected with external LED load；Described power supply chip 200 exports control signal to drive described LED load luminous by LED drive end V-LED.
Further, described power supply chip U1 also includes quiet control end Mute, described quiet control end Mute and is connected with the controlled end of outside power amplifier, and the power end of described power amplifier is connected with the outfan of described voltage conversion circuit 100.
It should be noted that, described voltage conversion circuit 100 exports 12V voltage and powers to power amplifier in the present embodiment, power supply chip U1 has been internally integrated muting control circuit, when volume of power amplifier is quickly transferred to noiseless by needs, export control signal so that power amplifier is adjusted to silent state by muting control circuit at quiet control end Mute.
Further, described power supply chip U1 also includes sequencing contro end P-EN, described sequencing contro end P-EN is connected with the controlled end of the sequential control circuit of display, and the power end of the sequential control circuit of described display is connected with the outfan of described voltage conversion circuit 100.
It should be noted that the sequential control circuit of display is for controlling the sequential of the image shown by display, power supply chip U1 passes through sequencing contro end P-EN output timing control signal to regulate the display sequential of image.
Further, described integrated power supply also includes the display lamp for showing described integrated power supply normal operation, and described power supply chip U1 also includes display lamp drive end DRI-LED, is used for driving display lamp luminous.In the present embodiment, during integrated power supply normal operation, display lamp sends green light；During integrated power failure, display lamp sends red light.
Further, described power supply chip U1 also includes analog digital conversion end ADC, and described analog digital conversion end ADC is connected with external key circuit for manual adjustments power supply chip U1 inner parameter.
It should be noted that, the input of external key circuit is analogue signal, power supply chip U1 has been internally integrated analog-digital converter and coding circuit, to convert the analogue signal that key circuit exports to digital signal, and to forming control instruction after encoding digital signals, power supply chip U1 inner parameter is adjusted.
Technical solutions of the utility model instead of multiple independent conventional buck formula DC source by adopting power supply chip U1 one piece integrated, this power supply chip U1 also has LED drive end V-LED, quiet control end Mute, sequencing contro end P-EN, display lamp drive end DRI-LED and digital-to-analogue conversion end ADC simultaneously, achieve the Based Intelligent Control to display, reduce the cost of display power supply, reduce the space that display power supply takies simultaneously.
This utility model also proposes a kind of display device, this display device includes described integrated power supply, the concrete structure of this integrated power supply is with reference to above-described embodiment, owing to this display device have employed whole technical schemes of above-mentioned all embodiments, therefore at least having all beneficial effects that the technical scheme of above-described embodiment is brought, this is no longer going to repeat them.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every under inventive concept of the present utility model; utilize the equivalent structure transformation that this utility model description and accompanying drawing content are made, or directly/be indirectly used in other relevant technical fields and be included in scope of patent protection of the present utility model.
Claims (9)
1. an integrated power supply, it is characterized in that, described integrated power supply includes voltage conversion circuit and power supply chip for externally input alternating voltage is converted to DC voltage, the input of described voltage conversion circuit connects external communication electricity, described voltage conversion circuit outfan is connected with the power input of described power supply chip, and described power supply chip includes multiple power output end；Wherein, described power supply chip, for converting the DC voltage that described voltage conversion circuit inputs to direct voltage output that plurality of voltages varies in size.
2. integrated power supply as claimed in claim 1, it is characterised in that the multiple described power output end of the power end of main control chip and described power supply chip one of them be connected, the end that controls of described main control chip is connected with the controlled end of described power supply chip.
3. integrated power supply as claimed in claim 1, it is characterised in that described power supply chip also includes LED drive end, and described LED drive end is connected with external LED load.
4. integrated power supply as claimed in claim 1, it is characterized in that, described power supply chip also includes quiet control end, and described quiet control end is connected with the controlled end of outside power amplifier, and the power end of described power amplifier is connected with the outfan of described voltage conversion circuit.
5. integrated power supply as claimed in claim 1, it is characterized in that, described power supply chip also includes sequencing contro end, described sequencing contro end is connected with the controlled end of the sequential control circuit of display, and the power end of the sequential control circuit of described display is connected with the outfan of described voltage conversion circuit.
6. integrated power supply as claimed in claim 1, it is characterized in that, described integrated power supply also includes the display lamp for showing described integrated power supply normal operation, and described power supply chip also includes display lamp drive end, and described display lamp drive end is connected with described display lamp.
7. integrated power supply as claimed in claim 1, it is characterised in that described power supply chip also includes analog digital conversion end, and described analog digital conversion end is connected with external key circuit.
8. integrated power supply as claimed in claim 2, it is characterised in that described power supply chip includes the first power output end, second source outfan and the 3rd power output end；Described second source outfan is connected with the power end of the dynamic RAM of display；Described 3rd power output end is connected with the power end of described main control chip.
9. a display device, it is characterised in that described display device includes the integrated power supply as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088415.5U CN205375074U (en) | 2015-12-23 | 2015-12-23 | Power and display device integrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088415.5U CN205375074U (en) | 2015-12-23 | 2015-12-23 | Power and display device integrate |
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| CN205375074U true CN205375074U (en) | 2016-07-06 |
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| CN201521088415.5U Active CN205375074U (en) | 2015-12-23 | 2015-12-23 | Power and display device integrate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982014A (en) * | 2019-04-22 | 2019-07-05 | 合肥惠科金扬科技有限公司 | A kind of driving circuit and television set |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982014A (en) * | 2019-04-22 | 2019-07-05 | 合肥惠科金扬科技有限公司 | A kind of driving circuit and television set |
| CN109982014B (en) * | 2019-04-22 | 2023-09-29 | 重庆惠科金扬科技有限公司 | Driving circuit and television |
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