CN203118419U - Power supply interface circuit of display driver board - Google Patents
Power supply interface circuit of display driver board Download PDFInfo
- Publication number
- CN203118419U CN203118419U CN 201320060976 CN201320060976U CN203118419U CN 203118419 U CN203118419 U CN 203118419U CN 201320060976 CN201320060976 CN 201320060976 CN 201320060976 U CN201320060976 U CN 201320060976U CN 203118419 U CN203118419 U CN 203118419U
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- China
- Prior art keywords
- power supply
- display driver
- interface circuit
- supply interface
- interface
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a power supply interface circuit of a display driver board, which comprises the power supply interface circuit. The power supply interface circuit of the display driver board is characterized in that the power supply interface circuit is equipped with a single small power supply interface and multiple large power supply interfaces, wherein the single small power supply interface respectively contacts with the multiple large power supply interfaces, the single small power supply interface employs a DC-JACK interface, and the multiple large power supply interfaces employ CON10 interfaces. The power supply interface circuit of the display driver board employs a double-interface design including the single small power supply interface and the multiple large power supply interfaces, which overcomes the disadvantage in the prior art only one power supply can be joint, increases the versatility of the display driver board, reduces error judgments caused by maloperations, and prevents the display driver board from being damaged.
Description
[technical field]
The utility model relates to a kind of display driver plate power interface circuit.
[background technology]
The power interface of present display driver plate and outside, main flow has two kinds: one is the adapter of single supply, and another is the large power supply interface of belt switch machine control signal, and two kinds of power interfaces all are suitable for single face separately.In routine duties, two kinds of power interfaces are easy to the power supply because of misoperation connection error, make the display driver plate can't operate as normal, cause that erroneous judgement is bad, even damage the display driver plate.
[utility model content]
The utility model purpose is to overcome above-mentioned deficiency, a kind of display driver plate power interface circuit is provided, adopt the double nip design of single group small power supply interface and many group large power supply interfaces, increased the versatility of display driver plate, reduce simultaneously because of misoperation cause can't operate as normal probability, and avoid damaging the display driver plate.
Technical solutions of the utility model are as described below: a kind of display driver plate power interface circuit, comprise power interface circuit, it is characterized in that, described power interface circuit is provided with single group small power supply interface and organizes the large power supply interface more, and described single group small power supply interface contacts respectively with described many group large power supply interfaces.
The utility model according to said structure is characterized in that, described single group small power supply interface adopts the DC-JACK interface.
The utility model according to said structure is characterized in that, described many group large power supply interfaces adopt the CON10 interface.
The beneficial effects of the utility model are, adopt the double nip design of single group small power supply interface and many group large power supply interfaces, solve in the past can only single butt joint power supply defective, increased the versatility of display driver plate, reduce simultaneously because of misoperation cause can't operate as normal, thereby the erroneous judgement that causes is bad, and avoids damaging the display driver plate.
[description of drawings]
Fig. 1 is the utility model and outside single group small power supply joint connection diagram.
Fig. 2 is the utility model and outside many group large power supply joint connection diagrams.
Fig. 3 is circuit connection diagram of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
As shown in Figure 1 to Figure 3, a kind of display driver plate power interface circuit comprises power interface circuit, it is characterized in that, described power interface circuit is provided with single group small power supply interface and organizes the large power supply interface more, and described single group small power supply interface contacts respectively with described many group large power supply interfaces.
Wherein, described single group small power supply interface adopts the DC-JACK interface, and described many group large power supply interfaces adopt the CON10 interface, acquiescence adjacent center spacing 2.54mm.
Principle of work is as described below:
When the outside is organized the large power supply joint more and is connected described many group large power supply interface CON4, in working order or under the holding state, + 5V_STB keeps the voltage input, after diode D3 conducting, the grid of metal-oxide-semiconductor Q2 is clamped at high level, metal-oxide-semiconductor Q2 by, simultaneously not controlled by switching signal PWR-ON/OFF, avoided+5V_Standby anti-irritate less than the large power supply end+5V_Normal, solved and be poured into organize large power supplies because+5V_Standby is anti-more and cause the work abnormal state of affairs.The base stage that another road+5V_STB is carried in triode Q8 by resistance R 22 allows triode Q8 conducting, and the pin 7 of control module U11 is placed low level, makes control module U11 enter into the dormancy mode of operation, does not have+5V_Standby output.So also solved under the large power supply duty, have+12V_NORMAL is input to control module U11, also no-voltage output.
When the described list group of outside single group small power supply joint insertion small power supply interface P7, electric current is input to control module U11 through fuse FP1 and produces+5V_Standby.At this moment, do not have+5V_STB voltage output, do not have clamped voltage at the grid of metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q2 conducting, + 5V_Normal is controlled by switching signal PWR-ON/OFF also can, under the standby mode+5V_Normal do not have voltage, and having solved has pair problem of complete machine stand-by power consumption requirement.Triode Q8 also because of base stage do not have+5V_STB input ends ,+12V_NORMAL connects the pin 7 of control module U11 by resistance R 135, pin 7 is put height, control module U11 operate as normal.
Owing to adopt the double nip design of single group small power supply interface and many group large power supply interfaces, solve in the past can only single butt joint power supply defective, increased the versatility of display driver plate, reduce simultaneously because of misoperation cause can't operate as normal, thereby the erroneous judgement that causes is bad, and avoids damaging the display driver plate.
Claims (3)
1. display driver plate power interface circuit, comprise power interface circuit, it is characterized in that described power interface circuit is provided with single group small power supply interface and organizes the large power supply interface more, described single group small power supply interface contacts respectively with described many group large power supply interfaces.
2. display driver plate power interface circuit according to claim 1 is characterized in that, described single group small power supply interface adopts the DC-JACK interface.
3. display driver plate power interface circuit according to claim 1 is characterized in that, described many group large power supply interfaces adopt the CON10 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060976 CN203118419U (en) | 2013-02-04 | 2013-02-04 | Power supply interface circuit of display driver board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060976 CN203118419U (en) | 2013-02-04 | 2013-02-04 | Power supply interface circuit of display driver board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118419U true CN203118419U (en) | 2013-08-07 |
Family
ID=48898741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320060976 Expired - Fee Related CN203118419U (en) | 2013-02-04 | 2013-02-04 | Power supply interface circuit of display driver board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118419U (en) |
-
2013
- 2013-02-04 CN CN 201320060976 patent/CN203118419U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20180204 |