CN108200311A - Monitoring image transmits signal amplifier - Google Patents
Monitoring image transmits signal amplifier Download PDFInfo
- Publication number
- CN108200311A CN108200311A CN201810096643.9A CN201810096643A CN108200311A CN 108200311 A CN108200311 A CN 108200311A CN 201810096643 A CN201810096643 A CN 201810096643A CN 108200311 A CN108200311 A CN 108200311A
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- CN
- China
- Prior art keywords
- resistance
- triode
- capacitance
- resistor
- connect
- Prior art date
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/148—Video amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of monitoring images to transmit signal amplifier,Including DC power supply,First resistor is to the 6th resistance,First capacitance,Second capacitance,First triode,Second triode and inductance,Compared with prior art,The present invention forms common emitter and the common base broadband video amplifier by two transistors,Vision signal is added to the base stage of the second triode through second resistance,Second triode is connected into the form of common-emitter amplifier,Thus with higher gain,The output of second transistor collector is directly sent on the emitter of the first triode,First triode is connected into the form of common-base amplifier,Thus there is bandwidth,Amplified vision signal is sent to display device by the output of the first transistor collector,Gain can effectively be improved,Improve signal transmission strength,Prevent video signal delay,Improve monitor video signal quality,It has the value of popularization and application.
Description
Technical field
The present invention relates to image and electronic technology field more particularly to a kind of monitoring image transmission signal amplifiers.
Background technology
Monitoring system is the building site monitoring system being more suitble on the market now using one of most system in safety-protection system
System is handheld video communication equipment, and video monitoring is mainstream now.From earliest simulation monitoring to burning hot digital supervision a few years ago
Network Video Surveillance in the ascendant till now again, has occurred earth-shaking variation.In the prior art, monitoring is required for being mounted on each
A place, this just needs longer video signal transmission wire to be transmitted, and after long distance of signal transmission, signal will decay, and lead
It causes signal delay or even influences clarity and color, accordingly, there exist rooms for improvement.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of monitoring image transmission signal amplifier.
The present invention is achieved through the following technical solutions above-mentioned purpose：
The present invention includes DC power supply, first resistor to the 6th resistance, the first capacitance, the second capacitance, the first triode, the
Two triodes and inductance, the anode of DC power supply simultaneously with the first end of the inductance, the first end of the first resistor and institute
State the first end connection of the 6th resistance, the cathode of the DC power supply simultaneously with the first end of first capacitance, described second
The first end of capacitance is connected with the first end of the 5th resistance, the second end of the first resistor simultaneously with first capacitance
Second end connected with the first end of the 3rd resistor, the second end of the 3rd resistor simultaneously with the 4th resistance first
It holds, the second end of the 5th resistance is connected with the emitter of second triode, the second end of the 4th resistance and institute
State the second end connection of the second capacitance, the collector of second triode while the emitter with first triode and institute
The anode connection of diode is stated, the base stage of second triode is connect with the first end of the second resistance, second electricity
The second end of resistance is monitor video signal input part, and the base stage of first triode is connect with the second end of the inductance, institute
The cathode for stating diode is connect with the second end of the 6th resistance, and the current collection extremely monitor video signal of first triode exports
End.
Specifically, the DC power supply is 9V, the first resistor is 3.3k Ω, the second resistance is 15k Ω, described
3rd resistor is 3.6k Ω, the 4th resistance is 2k Ω, the 5th resistance is 56k Ω, the 6th resistance be 100 Ω,
First capacitance is 10uF, second capacitance is 0.01uF, the first triode model DG6B6, the described 2nd 3
Pole pipe model DG6C6, the inductance be diameter 1mm enameled wire on the cylinder of diameter 10mm 10 circle of coiling demoulding and
Into.
The beneficial effects of the present invention are：
The present invention is a kind of monitoring image transmission signal amplifier, and compared with prior art, the present invention is by two transistors
It forms common emitter and the common base broadband video amplifier, vision signal is added to the base stage of the second triode through second resistance,
Second triode is connected into the form of common-emitter amplifier, thus with higher gain, the output of the second transistor collector
It being directly sent on the emitter of the first triode, the first triode is connected into the form of common-base amplifier, thus with bandwidth
The characteristics of, amplified vision signal is sent to display device by the output of the first transistor collector, can effectively improve gain,
Signal transmission strength is improved, prevents video signal delay, monitor video signal quality is improved, has the value of popularization and application.
Description of the drawings
Fig. 1 is the circuit structure schematic diagram of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1：The present invention includes DC power supply, first resistor R1 to the 6th resistance R6, the first capacitance C1, the second electricity
Hold C2, the first triode VT1, the second triode VT2 and inductance L, the anode of DC power supply while first with the inductance L
End, the first resistor R1 first end connected with the first end of the 6th resistance R6, the cathode of the DC power supply is simultaneously
It is connect with the first end, the first end of the second capacitance C2 and the first end of the 5th resistance R5 of the first capacitance C1,
The second end of the first resistor R1 connects simultaneously with the second end of the first capacitance C1 and the first end of the 3rd resistor R3
Connect, the second end of the 3rd resistor R3 simultaneously with the first end of the 4th resistance R4, the second end of the 5th resistance R5 and institute
The emitter connection of the second triode VT2 is stated, the second end of the 4th resistance R4 and the second end of the second capacitance C2 connect
Connect, the collector of the second triode VT2 simultaneously with the emitter of the first triode VT1 and the diode D just
Pole connects, and the base stage of the second triode VT2 connect with the first end of the second resistance R2, and the of the second resistance R2
Two ends are monitor video signal input part IN, and the base stage of the first triode VT1 is connect with the second end of the inductance L, institute
The cathode for stating diode D is connect with the second end of the 6th resistance R6, and the current collection extremely monitor video of the first triode VT1 is believed
Number output terminal OUT.
Specifically, the DC power supply is 9V, the first resistor R1 is 3.3k Ω, the second resistance R2 be 15k Ω,
The 3rd resistor R3 is 3.6k Ω, the 4th resistance R4 is 2k Ω, the 5th resistance R5 is 56k Ω, the 6th electricity
Resistance R6 is 100 Ω, the first capacitance C1 is 10uF, the second capacitance C2 is 0.01uF, the first triode VT1 models
For the enameled wire that DG6B6, the second triode VT2 models DG6C6, the inductance L are diameter 1mm diameter 10mm circle
10 circle of coiling demoulds on cylinder.
The operation principle of the present invention is as follows：
Common emitter and the common base broadband video amplifier are formed by two transistors, vision signal is through second resistance R2
The base stage of the second triode VT2 is added to, the second triode VT2 is connected into the form of common-emitter amplifier, thus with higher
Gain, the output of the second triode VT2 collectors are directly sent on the emitter of the first triode VT1, and the first triode VT1 connects
Into the form of common-base amplifier, thus there is bandwidth, amplified vision signal is by the first triode VT1 current collections
Display device is sent in pole output.
Basic principle of the invention and main feature and advantages of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (2)
1. a kind of monitoring image transmits signal amplifier, it is characterised in that：Including DC power supply, first resistor to the 6th resistance,
First capacitance, the second capacitance, the first triode, the second triode and inductance, the anode of DC power supply simultaneously with the inductance
First end, the first end of the first resistor are connected with the first end of the 6th resistance, and the cathode of the DC power supply is simultaneously
It is connect with the first end of the first end of first capacitance, the first end of second capacitance and the 5th resistance, described
The second end of one resistance is connect simultaneously with the second end of first capacitance and the first end of the 3rd resistor, the third electricity
The second end of resistance while first end, the second end of the 5th resistance and the emitter of second triode with the 4th resistance
Connection, the second end of the 4th resistance are connect with the second end of second capacitance, and the collector of second triode is same
When connect with the emitter of first triode and the anode of the diode, the base stage of second triode and described the
The first end connection of two resistance, the second end of the second resistance is monitor video signal input part, first triode
Base stage is connect with the second end of the inductance, and the cathode of the diode is connect with the second end of the 6th resistance, and the described 1st
The current collection of pole pipe extremely monitor video signal output end.
2. monitoring image according to claim 1 transmits signal amplifier, it is characterised in that：The DC power supply for 9V,
The first resistor is 3.3k Ω, the second resistance is 15k Ω, the 3rd resistor is 3.6k Ω, the 4th resistance is
2k Ω, the 5th resistance are 56k Ω, the 6th resistance is 100 Ω, first capacitance is 10uF, second capacitance
It is diameter for 0.01uF, the first triode model DG6B6, the second triode model DG6C6, the inductance
The enameled wire of 1mm 10 circle of coiling on the cylinder of diameter 10mm demoulds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096643.9A CN108200311A (en) | 2018-01-31 | 2018-01-31 | Monitoring image transmits signal amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096643.9A CN108200311A (en) | 2018-01-31 | 2018-01-31 | Monitoring image transmits signal amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108200311A true CN108200311A (en) | 2018-06-22 |
Family
ID=62591644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810096643.9A Pending CN108200311A (en) | 2018-01-31 | 2018-01-31 | Monitoring image transmits signal amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108200311A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601737U (en) * | 2010-03-22 | 2010-10-06 | 青岛海信电器股份有限公司 | Video amplifying circuit |
| CN102098420A (en) * | 2011-02-24 | 2011-06-15 | 广州视源电子科技有限公司 | Video signal output circuit |
| CN104601957A (en) * | 2015-01-19 | 2015-05-06 | 信阳农林学院 | Multimedia view screen signal transmission device |
| CN206433062U (en) * | 2017-02-14 | 2017-08-22 | 深圳市微申时代科技有限公司 | video conference camera |
| CN206894805U (en) * | 2017-07-20 | 2018-01-16 | 湖南科技学院 | A kind of monitoring image transmission processor |
-
2018
- 2018-01-31 CN CN201810096643.9A patent/CN108200311A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601737U (en) * | 2010-03-22 | 2010-10-06 | 青岛海信电器股份有限公司 | Video amplifying circuit |
| CN102098420A (en) * | 2011-02-24 | 2011-06-15 | 广州视源电子科技有限公司 | Video signal output circuit |
| CN104601957A (en) * | 2015-01-19 | 2015-05-06 | 信阳农林学院 | Multimedia view screen signal transmission device |
| CN206433062U (en) * | 2017-02-14 | 2017-08-22 | 深圳市微申时代科技有限公司 | video conference camera |
| CN206894805U (en) * | 2017-07-20 | 2018-01-16 | 湖南科技学院 | A kind of monitoring image transmission processor |
Non-Patent Citations (1)
| Title |
|---|
| 张传轮: "宽频带视频放大输出电路（图说之一）", 《电子世界》 * |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |