CN203492136U - Video display and control circuit of monitor - Google Patents
Video display and control circuit of monitor Download PDFInfo
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- CN203492136U CN203492136U CN201320557512.9U CN201320557512U CN203492136U CN 203492136 U CN203492136 U CN 203492136U CN 201320557512 U CN201320557512 U CN 201320557512U CN 203492136 U CN203492136 U CN 203492136U
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Abstract
The utility model discloses a video display and control circuit of a monitor, which comprises a power supply, a display, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a synchronous separation chip, a power supply chip, a first diode, a second diode, a third diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sixth capacitor. The video display and control circuit of the monitor disclosed by the utility model is not only capable of saving electricity but also capable of prolonging the working service life of the display; great convenience is provided for video signal processing; corresponding video image signals can be accurately obtained; the video display and control circuit of the monitor is higher in efficiency, simple in circuit structure and low in cost; and the circuit can be optimized very easily according to different occasions.
Description
Technical field
The utility model relates to a kind of display control circuit, relates in particular to a kind of monitor video display control circuit.
Background technology
Along with popularizing of Internet of Things application, video monitoring will be towards comprehensive ITization, the future development of IPization and Monitor-Networking, existing video monitoring system scheme has a lot, the DSP of some YongTI company and the MPEG-4 increasing income or H.264 realize the coding to video, what also have completes the soft coding of video in high speed ARM controller the inside, video monitoring is mainly by power supply, shooting is controlled, show and control, video is controlled and signal compensation four partial circuits form, most of monitor video display control circuit complex structure now, optimize difficulty large, efficiency is lower, cost is higher.
Utility model content
The purpose of this utility model provides a kind of monitor video display control circuit simple in structure with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises power supply, display, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, Sync Separator Chip, power supply chip, the first diode, the second diode, the 3rd diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 6th electric capacity, the first end while of described the 3rd resistance and the first end of described the first electric capacity, the positive pole of the positive pole of described the second diode and described the 3rd diode is connected and ground connection, the 4th end while of described power supply chip and the first end of described the second electric capacity, the first end of described the 3rd electric capacity, the first end of described the 5th resistance, the first end of the first end of described the 4th electric capacity and described the 6th resistance is connected and ground connection, the anodal of described power supply is connected with described the 8th first end of resistance and the first end of described power supply chip simultaneously, the second end while of described power supply chip and the second end of described the second electric capacity, the 3rd end of described power supply chip and the first signal input of described display are connected, the five terminal of described power supply chip is connected with the first end of described the second resistance, the second end of described the 8th resistance is connected with the second end of described the 3rd electric capacity and the power end of described Sync Separator Chip simultaneously, the reset terminal of described Sync Separator Chip is connected with the second end of described the 4th electric capacity with the second end of described the 5th resistance simultaneously, the earth terminal of described Sync Separator Chip is connected with the second end of described the 6th resistance, the field sync signal output of described Sync Separator Chip is connected with the first end of described the 5th electric capacity, the signal input part of described Sync Separator Chip is connected with the first end of described the 7th resistance, the second end of described the 7th resistance is connected with the first end of described the 6th electric capacity, the second end of described the 6th electric capacity is connected with signal voltage input with the first end of described the first resistance simultaneously, the second end of described the first resistance is connected with the secondary signal input of described display, the second end while of described the 5th electric capacity and the positive pole of described the first diode, the negative pole of described the second diode is connected with the negative pole of described the 3rd diode, the negative pole of described the first diode is connected with the first end of described the 4th resistance with the second end of described the first electric capacity simultaneously, and the second end of described the 4th resistance is connected with the second end of described the 3rd resistance and the second end of described the second resistance simultaneously.
Further, described power supply is 12V DC power supply.
The beneficial effects of the utility model are:
The utility model both can power saving, again can prolonged display working life, for the processing of vision signal provides great convenience, can obtain exactly corresponding video signal, efficiency is higher, and circuit structure is simple, cost is low, according to different occasions, can to circuit, be optimized easily.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises power supply, display XS, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, Sync Separator Chip U2, power supply chip U1, the first diode D1, the second diode D2, the 3rd diode D3, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5 and the 6th capacitor C 6, power supply is 12V DC power supply, the first end while of the 3rd resistance R 3 and the first end of the first capacitor C 1, the positive pole of the positive pole of the second diode D2 and the 3rd diode D3 is connected and ground connection, the 4th end while of power supply chip U1 and the first end of the second capacitor C 2, the first end of the 3rd capacitor C 3, the first end of the 5th resistance R 5, the first end of the first end of the 4th capacitor C 5 and the 6th resistance R 6 is connected and ground connection, and the anodal of power supply is connected with the first end of power supply chip U1 with the first end of the 8th resistance R 8 simultaneously, the second end while of power supply chip U1 and the second end of the second capacitor C 2, the 3rd end of power supply chip U1 and the first signal input of display XS are connected, the five terminal of power supply chip U1 is connected with the first end of the second resistance R 2, the second end of the 8th resistance R 8 is connected with the second end of the 3rd capacitor C 3 and the power end 1 of Sync Separator Chip U2 simultaneously, the reset terminal 6 of Sync Separator Chip U2 is connected with the second end of the 4th capacitor C 4 with the second end of the 5th resistance R 5 simultaneously, the earth terminal 4 of Sync Separator Chip U2 is connected with the second end of the 6th resistance R 6, the field sync signal output 3 of Sync Separator Chip U2 is connected with the first end of the 5th capacitor C 5, the signal input part 2 of Sync Separator Chip U2 is connected with the first end of the 7th resistance R 7, the second end of the 7th resistance R 7 is connected with the first end of the 6th capacitor C 6, the second end of the 6th capacitor C 6 is connected with signal voltage input with the first end of the first resistance R 1 simultaneously, the second end of the first resistance R 1 is connected with the secondary signal input of display XS, the second end while of the 5th capacitor C 5 and the positive pole of the first diode D1, the negative pole of the second diode D2 is connected with the negative pole of the 3rd diode D3, the negative pole of the first diode D1 is connected with the first end of the 4th resistance R 4 with the second end of the first capacitor C 1 simultaneously, and the second end of the 4th resistance R 4 is connected with the second end of the second resistance R 2 with the second end of the 3rd resistance R 3 simultaneously.
In the utility model, the Sync Separator Chip U2 that we select is that model is the chip of LM1881, it is the Video Sync Separator Chip for TV signal, it can directly carry out separated in synchronization to TV signal, obtain exactly required video signal, user can carry out sequential logic system to this synchronizing signal as required.LM1881 is widely used in the separated in synchronization of vision signal, during especially application is controlled with surveillance video, is the Sync Separator Chip of classical vision signal, for the processing of vision signal provides great convenience.LM1881 can extract the signals such as composite sync, field synchronization, parity field identification from the negative standard polarity TSC-system of 0.5～2V, Phase Alternation Line system, Sequential Color and Memory system vision signal, these signals are all that image digitization gathers needed synchronizing signal, there have been them, just can determine collection point is in which field, which, also can carry out separated in synchronization to off-gauge vision signal, by regular time, postpone to produce the output of giving tacit consent to and export as field synchronization.Whether display XS works and directly by vision signal, is controlled, that is:, while inputting without vision signal, display XS does not power up, and has vision signal when input, and display XS power supply is connected automatically, so both can power saving, and again can prolonged display working life.
Claims (2)
1. a monitor video display control circuit, is characterized in that: comprise power supply, display, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, Sync Separator Chip, power supply chip, the first diode, the second diode, the 3rd diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 6th electric capacity, the first end while of described the 3rd resistance and the first end of described the first electric capacity, the positive pole of the positive pole of described the second diode and described the 3rd diode is connected and ground connection, the 4th end while of described power supply chip and the first end of described the second electric capacity, the first end of described the 3rd electric capacity, the first end of described the 5th resistance, the first end of the first end of described the 4th electric capacity and described the 6th resistance is connected and ground connection, the anodal of described power supply is connected with described the 8th first end of resistance and the first end of described power supply chip simultaneously, the second end while of described power supply chip and the second end of described the second electric capacity, the 3rd end of described power supply chip and the first signal input of described display are connected, the five terminal of described power supply chip is connected with the first end of described the second resistance, the second end of described the 8th resistance is connected with the second end of described the 3rd electric capacity and the power end of described Sync Separator Chip simultaneously, the reset terminal of described Sync Separator Chip is connected with the second end of described the 4th electric capacity with the second end of described the 5th resistance simultaneously, the earth terminal of described Sync Separator Chip is connected with the second end of described the 6th resistance, the field sync signal output of described Sync Separator Chip is connected with the first end of described the 5th electric capacity, the signal input part of described Sync Separator Chip is connected with the first end of described the 7th resistance, the second end of described the 7th resistance is connected with the first end of described the 6th electric capacity, the second end of described the 6th electric capacity is connected with signal voltage input with the first end of described the first resistance simultaneously, the second end of described the first resistance is connected with the secondary signal input of described display, the second end while of described the 5th electric capacity and the positive pole of described the first diode, the negative pole of described the second diode is connected with the negative pole of described the 3rd diode, the negative pole of described the first diode is connected with the first end of described the 4th resistance with the second end of described the first electric capacity simultaneously, and the second end of described the 4th resistance is connected with the second end of described the 3rd resistance and the second end of described the second resistance simultaneously.
2. monitor video display control circuit according to claim 1, is characterized in that: described power supply is 12V DC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557512.9U CN203492136U (en) | 2013-09-09 | 2013-09-09 | Video display and control circuit of monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557512.9U CN203492136U (en) | 2013-09-09 | 2013-09-09 | Video display and control circuit of monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203492136U true CN203492136U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557512.9U Expired - Fee Related CN203492136U (en) | 2013-09-09 | 2013-09-09 | Video display and control circuit of monitor |
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| Country | Link |
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| CN (1) | CN203492136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711935A (en) * | 2018-05-16 | 2018-10-26 | 广东电网有限责任公司 | Show equipment and network system |
-
2013
- 2013-09-09 CN CN201320557512.9U patent/CN203492136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711935A (en) * | 2018-05-16 | 2018-10-26 | 广东电网有限责任公司 | Show equipment and network system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |