CN203492139U - Static interference-free and loss-free video monitor - Google Patents
Static interference-free and loss-free video monitor Download PDFInfo
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- CN203492139U CN203492139U CN201320560400.9U CN201320560400U CN203492139U CN 203492139 U CN203492139 U CN 203492139U CN 201320560400 U CN201320560400 U CN 201320560400U CN 203492139 U CN203492139 U CN 203492139U
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Abstract
The utility model discloses a static interference-free and loss-free video monitor, comprising a camera, a video amplifying circuit and a static eliminating circuit, wherein the signal output end of the camera is connected with the signal input end of the static eliminating circuit, and the signal output end of the static eliminating circuit is connected with the signal input end of the video amplifying circuit. According to the static interference-free and loss-free video monitor disclosed by the utility model, three groups of diodes are sequentially connected in series to carry out three-level static discharge on video signals to completely eliminate static so as to both avoid damage of the static on the video amplifying circuit and generate no loss on the video signals, so that the static interference-free and loss-free video monitor is suitable for high definition video monitors, for example, video monitors in various living quarters.
Description
Technical field
The utility model relates to a kind of video-frequency monitor, relates in particular to a kind of without electrostatic interference and loss-free video-frequency monitor.
Background technology
By the video amplifier circuit in video-frequency monitor, be easily subject to the break analysis of this phenomenon of static, find it is to be all generally easily subject to electrostatic influence at signal input part, when the input terminal voltage of video amplifier circuit is too high, its chip is fragile, performance phenomenon is that display is unglazed or light is very bright and has return line, and brightness is out of control non-adjustable.If the input signal of video amplifier circuit is just processed with the static eliminating circuit of existing routine, although can realize static, eliminate, can be to the sizable decay of video signal generating, so be not suitable for adopting in video-frequency monitor.
Utility model content
The purpose of this utility model provides a kind of without electrostatic interference and loss-free video-frequency monitor with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Described in the utility modelly without electrostatic interference and loss-free video-frequency monitor, comprise video camera, video amplifier circuit and static eliminating circuit, the signal output part of described video camera is connected with the signal input part of described static eliminating circuit, and the signal output part of described static eliminating circuit is connected with the signal input part of described video amplifier circuit, described static eliminating circuit comprises DC power supply, the first resistance～four resistance, the first diode～six diode and electric capacity, the first end of the first end of described the first resistance and described the second resistance interconnects the rear signal input part as described static eliminating circuit, the second end of described the second resistance respectively with the positive pole of described the first diode, the negative pole of described the second diode is connected with the first end of described electric capacity, the second end of described electric capacity is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance respectively with the first end of described the 4th resistance, the positive pole of described the 3rd diode is connected with the negative pole of described the 4th diode, the second end of described the 4th resistance, the negative pole of the positive pole of described the 5th diode and described the 6th diode interconnects the rear signal output part as described static eliminating circuit, the positive pole of described DC power supply, the negative pole of described the first diode, the negative pole of the negative pole of described the 3rd diode and described the 5th diode interconnects, the negative pole of described DC power supply, the second end of described the first resistance, the positive pole of described the second diode, the positive pole of the positive pole of described the 4th diode and described the 6th diode interconnects.
The beneficial effects of the utility model are:
The utility model utilizes three groups of diodes to connect successively vision signal is carried out to three grades of electrostatic leakages, reach the object that static is thoroughly eliminated, both avoided the infringement of static to video amplifier circuit, can not lose vision signal again, be applicable to the video-frequency monitor of high definition as the video-frequency monitor of each residence district.
Accompanying drawing explanation
Fig. 1 is that the vision signal without electrostatic interference and loss-free video-frequency monitor described in the utility model flows to block diagram;
Fig. 2 is the circuit diagram of static eliminating circuit described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, described in the utility modelly without electrostatic interference and loss-free video-frequency monitor, comprise video camera, static eliminating circuit and video amplifier circuit, the signal output part of video camera is connected with the signal input part of static eliminating circuit, the signal output part of static eliminating circuit is connected with the signal input part of video amplifier circuit, the signal output part of video amplifier circuit is connected with the input of display screen, because display screen and the utility model are irrelevant, so do not illustrate in the drawings.
As shown in Figure 2, described static eliminating circuit comprises DC power supply VCC, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6 and capacitor C, the first end of the first end of the first resistance R 1 and the second resistance R 2 interconnects the rear signal input part Ui as described static eliminating circuit, the second end of the second resistance R 2 respectively with the positive pole of the first diode D1, the second negative pole of diode D2 and the first end of capacitor C are connected, and the second end of capacitor C is connected with the first end of the 3rd resistance R 3, the second end of the 3rd resistance R 3 respectively with the first end of the 4th resistance R 4, the positive pole of the 3rd diode D3 is connected with the negative pole of the 4th diode D4, the second end of the 4th resistance R 4, the negative pole of the positive pole of the 5th diode D5 and the 6th diode D6 interconnects the rear signal output part UO as described static eliminating circuit, the positive pole of DC power supply VCC, the negative pole of the first diode D1, the negative pole of the negative pole of the 3rd diode D3 and the 5th diode D5 interconnects, the negative pole of DC power supply VCC, the second end of the first resistance R 1, the positive pole of the second diode D2, the positive pole of the positive pole of the 4th diode D4 and the 6th diode D6 interconnects.
As shown in Figure 2, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5 and the 6th diode D6 are divided into three groups; In 2 diodes of every group, diode cathode is connected with signal end, negative pole is connected with the positive pole of DC power supply VCC, another diode cathode is connected with signal end, positive pole is connected with the negative pole of DC power supply VCC, can realize electrostatic leakage effect comparatively thoroughly; Three groups of diodes are connected successively vision signal are carried out to three grades of electrostatic leakages, thereby reach the object that static is thoroughly eliminated.
Claims (1)
1. one kind without electrostatic interference and loss-free video-frequency monitor, comprise video camera and video amplifier circuit, it is characterized in that: also comprise static eliminating circuit, the signal output part of described video camera is connected with the signal input part of described static eliminating circuit, and the signal output part of described static eliminating circuit is connected with the signal input part of described video amplifier circuit, described static eliminating circuit comprises DC power supply, the first resistance～four resistance, the first diode～six diode and electric capacity, the first end of the first end of described the first resistance and described the second resistance interconnects the rear signal input part as described static eliminating circuit, the second end of described the second resistance respectively with the positive pole of described the first diode, the negative pole of described the second diode is connected with the first end of described electric capacity, the second end of described electric capacity is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance respectively with the first end of described the 4th resistance, the positive pole of described the 3rd diode is connected with the negative pole of described the 4th diode, the second end of described the 4th resistance, the negative pole of the positive pole of described the 5th diode and described the 6th diode interconnects the rear signal output part as described static eliminating circuit, the positive pole of described DC power supply, the negative pole of described the first diode, the negative pole of the negative pole of described the 3rd diode and described the 5th diode interconnects, the negative pole of described DC power supply, the second end of described the first resistance, the positive pole of described the second diode, the positive pole of the positive pole of described the 4th diode and described the 6th diode interconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560400.9U CN203492139U (en) | 2013-09-10 | 2013-09-10 | Static interference-free and loss-free video monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560400.9U CN203492139U (en) | 2013-09-10 | 2013-09-10 | Static interference-free and loss-free video monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203492139U true CN203492139U (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560400.9U Expired - Fee Related CN203492139U (en) | 2013-09-10 | 2013-09-10 | Static interference-free and loss-free video monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203492139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094102A (en) * | 2015-09-16 | 2015-11-25 | 成都比善科技开发有限公司 | Intelligent district data acquisition system equipped with serial server |
-
2013
- 2013-09-10 CN CN201320560400.9U patent/CN203492139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094102A (en) * | 2015-09-16 | 2015-11-25 | 成都比善科技开发有限公司 | Intelligent district data acquisition system equipped with serial server |
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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: 20140910 |
|
| EXPY | Termination of patent right or utility model |