CN203313132U - Anti-jamming infrared amplifier - Google Patents
Anti-jamming infrared amplifier Download PDFInfo
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- CN203313132U CN203313132U CN2013203553835U CN201320355383U CN203313132U CN 203313132 U CN203313132 U CN 203313132U CN 2013203553835 U CN2013203553835 U CN 2013203553835U CN 201320355383 U CN201320355383 U CN 201320355383U CN 203313132 U CN203313132 U CN 203313132U
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- operational amplifier
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- amplifier
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Abstract
The utility model discloses an anti-jamming infrared amplifier, and aims to solves the problems in the prior art that the infrared amplifier is large in size and low in performance-price ratio, thereby being unsuitable for low-cost small-sized equipment. The anti-jamming infrared amplifier comprises an infrared signal acquisition circuit, an operational amplifier T2 of which the output end is connected with the infrared signal acquisition circuit through a diode D5 and the anti-phase input end is connected with the infrared signal acquisition circuit through a resistor R6, a diode D4 which is connected with the output end and the anti-phase input end of the operational amplifier T2, a low-pass filtering circuit connected with the anti-phase input end of the operational amplifier T2, and a signal amplifying circuit connected with the output end of the low-pass filtering circuit. Through the technical scheme, the anti-jamming infrared amplifying circuit achieves the purposes of small size, high performance-price ratio, and suitability for low-cost and small-sized equipment, thereby having higher practical value and popularization value.
Description
Technical field
The utility model relates to a kind of amplifier, specifically, relates to a kind of anti-interference type infrared amplifier.
Background technology
As everyone knows, infrared signal amplifier is device very important in wireless communication technology, in order to improve effect, often need to connect in addition comparatively complicated suppressor, in the time of can causing like this use, overall volume is larger, and cost is higher, is unfavorable for some mini-plant uses cheaply.
The utility model content
The purpose of this utility model is to provide a kind of anti-interference type infrared amplifier, mainly solves the infrared signal amplifier volume existed in prior art larger, and cost performance is not high, is unfavorable for the problem of some mini-plant uses cheaply.
To achieve these goals, the technical solution adopted in the utility model is as follows:
The anti-interference type infrared amplifier, comprise the infrared signal Acquisition Circuit, output is connected with the infrared signal Acquisition Circuit by diode D5, and the operational amplifier T2 that inverting input is connected with the infrared signal Acquisition Circuit by resistance R 6, be connected in the output of operational amplifier T2 and the diode D4 between inverting input, the low-pass filter circuit be connected with the reverse input end of operational amplifier T2, the signal amplification circuit be connected with low-pass filter circuit, described signal amplification circuit comprises the triode Q1 that base stage is connected with the output of low-pass filter circuit, the operational amplifier T5 that in-phase input end is connected with the emitter of triode Q1 by electrochemical capacitor C6, be connected in inverting input and the capacitor C between output 7 of operational amplifier T5, after series connection, be parallel to capacitor C 8 and the resistance R 16 at capacitor C 7 two ends.
Specifically, described infrared signal Acquisition Circuit comprises that output passes through the operational amplifier T1 that capacitor C 1 and diode D5 and resistance R 6 all are connected, emitter is connected to the ground by resistance R 3, the triode Q that base stage is connected to the ground by diode D1, one end is connected with the in-phase input end of operational amplifier T1, the other end is connected with the collector electrode of triode Q by photoelectric receiving diode D2 respectively, the resistance R 2 be connected with the base stage of triode Q by resistance R 1, and be connected in the inverting input of operational amplifier T1 and the photoelectric receiving diode D3 between ground, be connected in in-phase input end and the resistance R between ground 4 of operational amplifier T1, be connected in inverting input and the resistance R between output 5 of operational amplifier T1.
Further, described low-pass filter circuit comprises the resistance R 9 that inverting input passes through to be connected successively, the operational amplifier T3 that resistance R 8 and resistance R 7 are connected with the inverting input of operational amplifier T2, the operational amplifier T4 that inverting input is connected with the output of operational amplifier T3 by connected successively resistance R 11 and resistance R 10, one end is connected between resistance R 8 and resistance R 9, the other end is connected in the capacitor C 2 of the output of operational amplifier T3, one end is connected between resistance R 10 and resistance R 11, the other end is connected in the capacitor C 4 of the output of operational amplifier T4, the base stage of described triode Q1 is connected with the output of operational amplifier T4.
Further, described low-pass filter circuit also comprises inverting input and the capacitor C between ground 3 that is connected in operational amplifier T3, be connected in inverting input and the capacitor C between ground 5 of operational amplifier T4, the output of described operational amplifier T3 is connected with in-phase input end, and the output of described operational amplifier T4 is connected with in-phase input end.
In the utility model, described signal amplification circuit also comprises base stage and the resistance R between ground 12 that is connected in triode Q1, be connected in emitter and the resistance R between ground 13 of triode Q1, be connected in in-phase input end and the resistance R between ground 14 of operational amplifier T5, be connected in reverse input end and the resistance R between ground 15 of operational amplifier T5.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is designed to one by infrared signal Acquisition Circuit, filter circuit, detecting circuit, signal amplification circuit, and has selected the components and parts that cost is minimum, effect is best to carry out circuit design according to actual conditions, accords with the demands of the market.
(2) the utility model is simple in structure, uses less components and parts to realize preferably the signal amplification, and with low cost, volume is small and exquisite, and cost performance is higher, is applicable to large-scale promotion application.
(3) in the utility model, adopt dual low-pass filter circuit, greatly improved the antijamming capability of circuit, improved the stability of work.
The accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
Larger in order to solve the infrared signal amplifier volume existed in prior art, cost performance is not high, the problem that is unfavorable for some mini-plant uses cheaply, as shown in Figure 1, the utility model discloses a kind of anti-interference type infrared amplifier, comprise the infrared signal Acquisition Circuit, output is connected with the infrared signal Acquisition Circuit by diode D5, and the operational amplifier T2 that inverting input is connected with the infrared signal Acquisition Circuit by resistance R 6, be connected in the output of operational amplifier T2 and the diode D4 between inverting input, the low-pass filter circuit be connected with the reverse input end of operational amplifier T2, the signal amplification circuit be connected with low-pass filter circuit, described signal amplification circuit comprises the triode Q1 that base stage is connected with the output of low-pass filter circuit, the operational amplifier T5 that in-phase input end is connected with the emitter of triode Q1 by electrochemical capacitor C6, be connected in inverting input and the capacitor C between output 7 of operational amplifier T5, after series connection, be parallel to capacitor C 8 and the resistance R 16 at capacitor C 7 two ends.Wherein, resistance R 6, diode D4, diode D5, operational amplifier T2 have formed detecting circuit.
Specifically, described infrared signal Acquisition Circuit comprises that output passes through the operational amplifier T1 that capacitor C 1 and diode D5 and resistance R 6 all are connected, emitter is connected to the ground by resistance R 3, the triode Q that base stage is connected to the ground by diode D1, one end is connected with the in-phase input end of operational amplifier T1, the other end is connected with the collector electrode of triode Q by photoelectric receiving diode D2 respectively, the resistance R 2 be connected with the base stage of triode Q by resistance R 1, and be connected in the inverting input of operational amplifier T1 and the photoelectric receiving diode D3 between ground, be connected in in-phase input end and the resistance R between ground 4 of operational amplifier T1, be connected in inverting input and the resistance R between output 5 of operational amplifier T1.
Further, described low-pass filter circuit comprises the resistance R 9 that inverting input passes through to be connected successively, the operational amplifier T3 that resistance R 8 and resistance R 7 are connected with the inverting input of operational amplifier T2, the operational amplifier T4 that inverting input is connected with the output of operational amplifier T3 by connected successively resistance R 11 and resistance R 10, one end is connected between resistance R 8 and resistance R 9, the other end is connected in the capacitor C 2 of the output of operational amplifier T3, one end is connected between resistance R 10 and resistance R 11, the other end is connected in the capacitor C 4 of the output of operational amplifier T4, the base stage of described triode Q1 is connected with the output of operational amplifier T4.
Further, described low-pass filter circuit also comprises inverting input and the capacitor C between ground 3 that is connected in operational amplifier T3, be connected in inverting input and the capacitor C between ground 5 of operational amplifier T4, the output of described operational amplifier T3 is connected with in-phase input end, and the output of described operational amplifier T4 is connected with in-phase input end.
In the utility model, described signal amplification circuit also comprises base stage and the resistance R between ground 12 that is connected in triode Q1, be connected in emitter and the resistance R between ground 13 of triode Q1, be connected in in-phase input end and the resistance R between ground 14 of operational amplifier T5, be connected in reverse input end and the resistance R between ground 15 of operational amplifier T5.
On the basis of foregoing circuit, the present embodiment also is connected with part auxiliary element and line, and be used to guaranteeing the normal operation of circuit, the use of these auxiliary elements and line belongs to the circuit application custom of industry universal, does not repeat them here.
According to above-described embodiment, just can realize well the utility model.
Claims (5)
1. anti-interference type infrared amplifier, it is characterized in that, comprise the infrared signal Acquisition Circuit, output is connected with the infrared signal Acquisition Circuit by diode D5, and the operational amplifier T2 that inverting input is connected with the infrared signal Acquisition Circuit by resistance R 6, be connected in the output of operational amplifier T2 and the diode D4 between inverting input, the low-pass filter circuit be connected with the reverse input end of operational amplifier T2, the signal amplification circuit be connected with low-pass filter circuit, described signal amplification circuit comprises the triode Q1 that base stage is connected with the output of low-pass filter circuit, the operational amplifier T5 that in-phase input end is connected with the emitter of triode Q1 by electrochemical capacitor C6, be connected in inverting input and the capacitor C between output 7 of operational amplifier T5, after series connection, be parallel to capacitor C 8 and the resistance R 16 at capacitor C 7 two ends.
2. anti-interference type infrared amplifier according to claim 1, it is characterized in that, described infrared signal Acquisition Circuit comprises that output passes through the operational amplifier T1 that capacitor C 1 and diode D5 and resistance R 6 all are connected, emitter is connected to the ground by resistance R 3, the triode Q that base stage is connected to the ground by diode D1, one end is connected with the in-phase input end of operational amplifier T1, the other end is connected with the collector electrode of triode Q by photoelectric receiving diode D2 respectively, the resistance R 2 be connected with the base stage of triode Q by resistance R 1, and be connected in the inverting input of operational amplifier T1 and the photoelectric receiving diode D3 between ground, be connected in in-phase input end and the resistance R between ground 4 of operational amplifier T1, be connected in inverting input and the resistance R between output 5 of operational amplifier T1.
3. anti-interference type infrared amplifier according to claim 2, it is characterized in that, described low-pass filter circuit comprises the resistance R 9 that inverting input passes through to be connected successively, the operational amplifier T3 that resistance R 8 and resistance R 7 are connected with the inverting input of operational amplifier T2, the operational amplifier T4 that inverting input is connected with the output of operational amplifier T3 by connected successively resistance R 11 and resistance R 10, one end is connected between resistance R 8 and resistance R 9, the other end is connected in the capacitor C 2 of the output of operational amplifier T3, one end is connected between resistance R 10 and resistance R 11, the other end is connected in the capacitor C 4 of the output of operational amplifier T4, the base stage of described triode Q1 is connected with the output of operational amplifier T4.
4. anti-interference type infrared amplifier according to claim 3, it is characterized in that, described low-pass filter circuit also comprises inverting input and the capacitor C between ground 3 that is connected in operational amplifier T3, be connected in inverting input and the capacitor C between ground 5 of operational amplifier T4, the output of described operational amplifier T3 is connected with in-phase input end, and the output of described operational amplifier T4 is connected with in-phase input end.
5. anti-interference type infrared amplifier according to claim 4, it is characterized in that, described signal amplification circuit also comprises base stage and the resistance R between ground 12 that is connected in triode Q1, be connected in emitter and the resistance R between ground 13 of triode Q1, be connected in in-phase input end and the resistance R between ground 14 of operational amplifier T5, be connected in reverse input end and the resistance R between ground 15 of operational amplifier T5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203553835U CN203313132U (en) | 2013-06-20 | 2013-06-20 | Anti-jamming infrared amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203553835U CN203313132U (en) | 2013-06-20 | 2013-06-20 | Anti-jamming infrared amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203313132U true CN203313132U (en) | 2013-11-27 |
Family
ID=49619303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203553835U Expired - Lifetime CN203313132U (en) | 2013-06-20 | 2013-06-20 | Anti-jamming infrared amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203313132U (en) |
-
2013
- 2013-06-20 CN CN2013203553835U patent/CN203313132U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU BOST INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHENGDU BOOST TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610000, Sichuan, Chengdu province Wuhou District Wu Qing Road (Wuhou hi tech Innovation Center incubator) Patentee after: CHENGDU BOOST INFORMATION TECHNOLOGY Co.,Ltd. Address before: 610000, Sichuan, Chengdu province Wuhou District Wu Qing Road (Wuhou hi tech Innovation Center incubator) Patentee before: CHENGDU BOOST TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |