CN203313128U - Novel infrared amplifying circuit - Google Patents
Novel infrared amplifying circuit Download PDFInfo
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- CN203313128U CN203313128U CN2013203550875U CN201320355087U CN203313128U CN 203313128 U CN203313128 U CN 203313128U CN 2013203550875 U CN2013203550875 U CN 2013203550875U CN 201320355087 U CN201320355087 U CN 201320355087U CN 203313128 U CN203313128 U CN 203313128U
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- 230000003321 amplification Effects 0.000 claims abstract description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 27
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Abstract
The utility model discloses a novel infrared amplifying circuit and mainly aims to solve the problem that in the prior art, an infrared signal amplifier is large in size, not high in performance-price ratio and not applicable to small-sized equipment with low cost. The novel infrared amplifying circuit comprises an infrared signal acquisition circuit, an operational amplifier T2, a diode D4, a filter circuit and a signal amplification circuit; an output terminal of the operational amplifier T2 is connected with the infrared signal acquisition circuit through a diode D5, and an inverting input terminal is connected with the infrared signal acquisition circuit through a resistor R6; the diode D4 is connected between the output terminal and the inverting input terminal of the operational amplifier T2; the filter circuit is connected with the inverting input terminal of the operational amplifier T2; the signal amplification circuit is connected with the output terminal of the filter circuit. Through the scheme, the utility model achieves the purposes of small size, higher performance-price ratio and applicability to small-sized equipment with low cost, and has very high utility values and popularization values.
Description
Technical field
The utility model relates to a kind of amplifying circuit, specifically, relates to the new infrared amplifying circuit.
Background technology
As everyone knows, infrared 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 the new infrared amplifying circuit, 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 new infrared amplifying circuit, 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 filter circuit be connected with the reverse input end of operational amplifier T2, the signal amplification circuit be connected with the output of filter circuit, described filter circuit comprises the resistance R 10 that in-phase input end passes through to be connected successively, resistance R 8, the operational amplifier T3 that capacitor C 2 and resistance R 7 are connected with the inverting input of operational amplifier T2, one end is connected between resistance R 8 and resistance R 10, the other end is connected in the capacitor C 3 of the output of operational amplifier T3, the inverting input of described operational amplifier T3 is connected with output, described signal amplification circuit comprises the triode Q1 that base stage is connected with the output of operational amplifier T3, the operational amplifier T4 that in-phase input end is connected with the emitter of triode Q1 by electrochemical capacitor C5, be connected in inverting input and the capacitor C between output 6 of operational amplifier T4, after series connection, be parallel to capacitor C 7 and the resistance R 15 at capacitor C 6 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 filter circuit also comprises that the in-phase input end and 4, one ends of the capacitor C between ground that are connected in operational amplifier T3 are connected between capacitor C 2 and resistance R 8, the resistance R 9 of other end ground connection.
In the utility model, described signal amplification circuit also comprises base stage and the resistance R between ground 11 that is connected in triode Q1, be connected in emitter and the resistance R between ground 12 of triode Q1, be connected in in-phase input end and the resistance R between ground 13 of operational amplifier T4, be connected in inverting input and the resistance R between ground 14 of operational amplifier T4.
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 and both to have had circuit that high pass filter function also has the low-pass filtering function as filter circuit, circuit structure is very ingenious, and the filtering effect is fairly obvious, realistic demand.
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 new infrared amplifying circuit, 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 filter circuit be connected with the reverse input end of operational amplifier T2, the signal amplification circuit be connected with the output of filter circuit, described filter circuit comprises the resistance R 10 that in-phase input end passes through to be connected successively, resistance R 8, the operational amplifier T3 that capacitor C 2 and resistance R 7 are connected with the inverting input of operational amplifier T2, one end is connected between resistance R 8 and resistance R 10, the other end is connected in the capacitor C 3 of the output of operational amplifier T3, the inverting input of described operational amplifier T3 is connected with output, described signal amplification circuit comprises the triode Q1 that base stage is connected with the output of operational amplifier T3, the operational amplifier T4 that in-phase input end is connected with the emitter of triode Q1 by electrochemical capacitor C5, be connected in inverting input and the capacitor C between output 6 of operational amplifier T4, after series connection, be parallel to capacitor C 7 and the resistance R 15 at capacitor C 6 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 filter circuit also comprises that the in-phase input end and 4, one ends of the capacitor C between ground that are connected in operational amplifier T3 are connected between capacitor C 2 and resistance R 8, the resistance R 9 of other end ground connection.
In the utility model, described signal amplification circuit also comprises base stage and the resistance R between ground 11 that is connected in triode Q1, be connected in emitter and the resistance R between ground 12 of triode Q1, be connected in in-phase input end and the resistance R between ground 13 of operational amplifier T4, be connected in inverting input and the resistance R between ground 14 of operational amplifier T4.
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 (4)
1. new infrared amplifying circuit, 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 filter circuit be connected with the reverse input end of operational amplifier T2, the signal amplification circuit be connected with the output of filter circuit, described filter circuit comprises the resistance R 10 that in-phase input end passes through to be connected successively, resistance R 8, the operational amplifier T3 that capacitor C 2 and resistance R 7 are connected with the inverting input of operational amplifier T2, one end is connected between resistance R 8 and resistance R 10, the other end is connected in the capacitor C 3 of the output of operational amplifier T3, the inverting input of described operational amplifier T3 is connected with output, described signal amplification circuit comprises the triode Q1 that base stage is connected with the output of operational amplifier T3, the operational amplifier T4 that in-phase input end is connected with the emitter of triode Q1 by electrochemical capacitor C5, be connected in inverting input and the capacitor C between output 6 of operational amplifier T4, after series connection, be parallel to capacitor C 7 and the resistance R 15 at capacitor C 6 two ends.
2. new infrared amplifying circuit 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. new infrared amplifying circuit according to claim 2, it is characterized in that, described filter circuit also comprises that the in-phase input end and 4, one ends of the capacitor C between ground that are connected in operational amplifier T3 are connected between capacitor C 2 and resistance R 8, the resistance R 9 of other end ground connection.
4. new infrared amplifying circuit according to claim 3, it is characterized in that, described signal amplification circuit also comprises base stage and the resistance R between ground 11 that is connected in triode Q1, be connected in emitter and the resistance R between ground 12 of triode Q1, be connected in in-phase input end and the resistance R between ground 13 of operational amplifier T4, be connected in inverting input and the resistance R between ground 14 of operational amplifier T4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203550875U CN203313128U (en) | 2013-06-20 | 2013-06-20 | Novel infrared amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203550875U CN203313128U (en) | 2013-06-20 | 2013-06-20 | Novel infrared amplifying circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203313128U true CN203313128U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203550875U Active CN203313128U (en) | 2013-06-20 | 2013-06-20 | Novel infrared amplifying circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701416A (en) * | 2013-12-31 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Infrared signal amplifying circuit |
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2013
- 2013-06-20 CN CN2013203550875U patent/CN203313128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701416A (en) * | 2013-12-31 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Infrared signal amplifying circuit |
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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 INC. Address before: 610000, Sichuan, Chengdu province Wuhou District Wu Qing Road (Wuhou hi tech Innovation Center incubator) Patentee before: Chengdu Boost Technology Co., Ltd. |