CN204681320U - Opto-electronic receiver amplifying circuit - Google Patents
Opto-electronic receiver amplifying circuit Download PDFInfo
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- CN204681320U CN204681320U CN201520267039.XU CN201520267039U CN204681320U CN 204681320 U CN204681320 U CN 204681320U CN 201520267039 U CN201520267039 U CN 201520267039U CN 204681320 U CN204681320 U CN 204681320U
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- amplifying circuit
- opto
- electronic receiver
- pulse trigger
- adopts
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Abstract
The utility model relates to a kind of opto-electronic receiver amplifying circuit, comprise: the photoelectric tube receiving element, signal amplification unit and the pulse trigger unit that are connected successively, wherein said signal amplification unit comprises: two-stage amplifying circuit, namely the first order amplifying circuit be connected with photoelectric tube receiving element output, it adopts in-phase proportion computing circuit; The second level amplifying circuit be connected with pulse trigger unit input, it adopts transistor amplifier; Opto-electronic receiver amplifying circuit of the present utility model effectively overcomes the problem adopting one-level to amplify easy signal magnification distortion by multistage amplification, and it is adjustable that pulse trigger unit can be utilized to realize the pulse duration, to meet different output requirements.
Description
Technical field
The utility model belongs to electronic technology field, is specifically related to a kind of opto-electronic receiver amplifying circuit.
Background technology
Photoelectric technology combines closely, traditional optical technology and modern electronic technology and computer technology by realizing the conversion of light signal to the signal of telecommunication.
But easily there is distorted signals shortcoming in traditional Photoelectric Signal Processing.Therefore, a kind of new opto-electronic receiver amplifying circuit must be designed, to solve the problems of the technologies described above.
Utility model content
The purpose of this utility model is to provide a kind of opto-electronic receiver amplifying circuit, to solve the technical problem of the easy distortion of signal.
In order to solve the problems of the technologies described above, the utility model provides a kind of opto-electronic receiver amplifying circuit, comprise: the photoelectric tube receiving element, signal amplification unit and the pulse trigger unit that are connected successively, wherein said signal amplification unit comprises: two-stage amplifying circuit, namely the first order amplifying circuit be connected with photoelectric tube receiving element output, it adopts in-phase proportion computing circuit; The second level amplifying circuit be connected with pulse trigger unit input, it adopts transistor amplifier.
Further, described photoelectric tube receiving element comprises photoelectric receiving tube PD, the negative electrode of described photoelectric receiving tube PD is connected with electric capacity E1 with power supply, and its anode is through biasing resistor R1 ground connection, and this anode is connected with the input of first order amplifying circuit through coupling capacitance C1.
Further, in described in-phase proportion computing circuit, operational amplifier adopts TA7602 operational amplifier, and 1 pin of this TA7602 operational amplifier is by electric capacity C1 ground connection, and 8 pin are by electric capacity C2 ground connection.
Further, electric capacity C4 is adopted to be of coupled connections between described two-stage amplifying circuit.
Further, described transistor amplifier comprises: triode Q1, the base stage of this triode Q1 is connected with current-limiting resistance R5 and biasing resistor R6, and its collector electrode accesses power supply by resistance R7, and is also connected with the input of the pulse trigger in pulse trigger unit.
Further, described pulse trigger adopts 4098 pulse triggers, and the timing capacitor end of this 4098 pulse trigger is connected with the two ends of timing capacitor CT respectively with timing resistor end, and timing resistor end is connected with power supply by timing resistor RT.
The beneficial effects of the utility model are, opto-electronic receiver amplifying circuit of the present utility model effectively overcomes the problem adopting one-level to amplify easy signal magnification distortion by multistage amplification, and it is adjustable that pulse trigger unit can be utilized to realize the pulse duration, to meet different output requirements.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the circuit theory diagrams of opto-electronic receiver amplifying circuit of the present utility model.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of opto-electronic receiver amplifying circuit of the present utility model, comprise: the photoelectric tube receiving element, signal amplification unit and the pulse trigger unit that are connected successively, wherein said signal amplification unit comprises: two-stage amplifying circuit, namely the first order amplifying circuit be connected with photoelectric tube receiving element output, it adopts in-phase proportion computing circuit; The second level amplifying circuit be connected with pulse trigger unit input, it adopts transistor amplifier.This electricity is received amplifying circuit and is effectively overcome the problem adopting one-level to amplify easy signal magnification distortion by multistage amplification.
Further, in order to realize playing burning voltage effect to the direction bias voltage of photoelectric receiving tube PD, filtering non-dc portion voltage, preventing supply voltage shakiness from causing damage to photoelectric receiving tube PD, current compensation being carried out to photoelectric receiving tube PD simultaneously; Described photoelectric tube receiving element comprises photoelectric receiving tube PD, and the negative electrode of described photoelectric receiving tube PD is connected with electric capacity E1 with power supply, and its anode is through biasing resistor R1 ground connection, and this anode is connected with the input of first order amplifying circuit through coupling capacitance C1.
Concrete, the highly sensitive photodiode that described photoelectric receiving tube PD uses spectral response to be applicable to.Such as select response wave length to be 400 ~ 1100nm, the response time is the Japanese shore pine high performance silicon optical diode of 4 nanoseconds.
Preferably, in order to the amplifying signal not easily distortion of first order amplifying circuit, and there is the advantage of low noise; In described in-phase proportion computing circuit, operational amplifier adopts TA7602 operational amplifier, and 1 pin of this TA7602 operational amplifier is by electric capacity C1 ground connection, and 8 pin are by electric capacity C2 ground connection.
Optionally, described in-phase proportion computing circuit also can adopt operational amplifier TAC7604 to realize.
Optionally, electric capacity C4 is adopted to be of coupled connections between described two-stage amplifying circuit.
Concrete, magnifying state is worked in reliably in order to better make triode Q1, described transistor amplifier comprises: triode Q1, the base stage of this triode Q1 is connected with current-limiting resistance R5 and biasing resistor R6, its collector electrode accesses power supply by resistance R7, and is also connected with the input of the pulse trigger in pulse trigger unit.
Preferably, in order to make the output burst length produce conversion as required, namely
and then it is adjustable to realize the pulse duration, concrete described pulse trigger adopts 4098 pulse triggers, the timing capacitor end of this 4098 pulse trigger is connected with the two ends of timing capacitor CT respectively with timing resistor end, and timing resistor end is connected with power supply by timing resistor RT.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (6)
1. an opto-electronic receiver amplifying circuit, is characterized in that comprising: the photoelectric tube receiving element, signal amplification unit and the pulse trigger unit that are connected successively, wherein
Described signal amplification unit comprises: two-stage amplifying circuit, namely
The first order amplifying circuit be connected with photoelectric tube receiving element output, it adopts in-phase proportion computing circuit; The second level amplifying circuit be connected with pulse trigger unit input, it adopts transistor amplifier.
2. opto-electronic receiver amplifying circuit according to claim 1, is characterized in that,
Described photoelectric tube receiving element comprises photoelectric receiving tube PD, and the negative electrode of described photoelectric receiving tube PD is connected with electric capacity E1 with power supply, and its anode is through biasing resistor R1 ground connection, and this anode is connected with the input of first order amplifying circuit through coupling capacitance C1.
3. opto-electronic receiver amplifying circuit according to claim 2, is characterized in that,
In described in-phase proportion computing circuit, operational amplifier adopts TA7602 operational amplifier, and 1 pin of this TA7602 operational amplifier is by electric capacity C1 ground connection, and 8 pin are by electric capacity C2 ground connection.
4. opto-electronic receiver amplifying circuit according to claim 3, is characterized in that, adopts electric capacity C4 to be of coupled connections between described two-stage amplifying circuit.
5. opto-electronic receiver amplifying circuit according to claim 4, it is characterized in that, described transistor amplifier comprises: triode Q1, the base stage of this triode Q1 is connected with current-limiting resistance R5 and biasing resistor R6, its collector electrode accesses power supply by resistance R7, and is also connected with the input of the pulse trigger in pulse trigger unit.
6. opto-electronic receiver amplifying circuit according to claim 5, it is characterized in that, described pulse trigger adopts 4098 pulse triggers, the timing capacitor end of this 4098 pulse trigger is connected with the two ends of timing capacitor CT respectively with timing resistor end, and timing resistor end is connected with power supply by timing resistor RT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267039.XU CN204681320U (en) | 2015-04-28 | 2015-04-28 | Opto-electronic receiver amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267039.XU CN204681320U (en) | 2015-04-28 | 2015-04-28 | Opto-electronic receiver amplifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681320U true CN204681320U (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520267039.XU Expired - Fee Related CN204681320U (en) | 2015-04-28 | 2015-04-28 | Opto-electronic receiver amplifying circuit |
Country Status (1)
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| CN (1) | CN204681320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626576A (en) * | 2023-07-25 | 2023-08-22 | 深圳基本半导体有限公司 | Probe phase error determining device and method |
-
2015
- 2015-04-28 CN CN201520267039.XU patent/CN204681320U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116626576A (en) * | 2023-07-25 | 2023-08-22 | 深圳基本半导体有限公司 | Probe phase error determining device and method |
| CN116626576B (en) * | 2023-07-25 | 2023-11-07 | 深圳基本半导体有限公司 | Probe phase error determining device and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |