CN203301427U - Infrared amplifier - Google Patents
Infrared amplifier Download PDFInfo
- Publication number
- CN203301427U CN203301427U CN2013203552828U CN201320355282U CN203301427U CN 203301427 U CN203301427 U CN 203301427U CN 2013203552828 U CN2013203552828 U CN 2013203552828U CN 201320355282 U CN201320355282 U CN 201320355282U CN 203301427 U CN203301427 U CN 203301427U
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- Prior art keywords
- operational amplifier
- resistance
- inverting input
- output
- infrared
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- Expired - Lifetime
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Abstract
The utility model discloses an infrared amplifier, and solves the problems that an infrared amplifier is large in size, low in cost performance, and is not conducive to be used by some low-cost small-scale equipment. The infrared amplifier comprises an infrared signal collecting circuit, an operational amplifier T2, a diode D4, a low-pass filter circuit and a signal amplifying circuit; the output end of the operational amplifier T2 is connected with the infrared signal collecting circuit through a diode D5, and the inverting input end of the operational amplifier T2 is connected with the infrared signal collecting circuit through a resistor R6; the diode D4 is connected between the output end of the operational amplifier T2 and the inverting input end of the same; the inverting input end of the operational amplifier T2 is connected with the low-pass filter circuit, and the low-pass filter circuit is connected with the signal amplifying circuit. The infrared amplifier is small in size, high in cost performance is adaptable to low-cost small-scale equipment, and has high practical value and promoting value.
Description
Technical field
The utility model relates to a kind of amplifier, specifically, relates to a kind of 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 infrared amplifier, mainly solves the infrared signal amplifier volume that exists 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:
Infrared amplifier, comprise the infrared signal Acquisition Circuit, the operational amplifier T2 that output is connected with the infrared signal Acquisition Circuit by diode D5 and 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, with the low-pass filter circuit that the reverse input end of operational amplifier T2 is connected, the signal amplification circuit that is connected with low-pass filter 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 that is 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, described signal amplification circuit 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.
As a kind of preferred, described signal amplification circuit comprises the operational amplifier T5 that output and inverting input are connected by resistance R 14, and an end is connected with the inverting input of operational amplifier T5, the other end is respectively by Xiao Jite diode D7 and the Xiao Jite diode D6 of mutually series connection, the resistance R 13 that resistance R 12 is connected with the output of operational amplifier T4.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is designed to one with infrared signal Acquisition Circuit, filter circuit, detecting circuit, signal amplification circuit, and according to actual conditions, has selected the components and parts that cost is minimum, effect is best to carry out circuit design, 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 fit to large-scale promotion application.
(3) adopt dual low-pass filter circuit in the utility model, greatly improved the antijamming capability of circuit, improved the stability of work.
Description of drawings
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 that exists 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 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 that is connected with the reverse input end of operational amplifier T2, the signal amplification circuit that is connected with low-pass filter circuit.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 that is 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, described signal amplification circuit 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.
As a kind of preferred, described signal amplification circuit comprises the operational amplifier T5 that output and inverting input are connected by resistance R 14, and an end is connected with the inverting input of operational amplifier T5, the other end is respectively by Xiao Jite diode D7 and the Xiao Jite diode D6 of mutually series connection, the resistance R 13 that resistance R 12 is connected with the output of operational amplifier T4.
On the basis of foregoing circuit, the present embodiment also is connected with part auxiliary element and line, is used for guaranteeing the normal operation of circuit, and 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. infrared amplifier, it is characterized in that, comprise the infrared signal Acquisition Circuit, the operational amplifier T2 that output is connected with the infrared signal Acquisition Circuit by diode D5 and 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, with the low-pass filter circuit that the reverse input end of operational amplifier T2 is connected, the signal amplification circuit that is connected with low-pass filter circuit.
2. 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 that is 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. 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, described signal amplification circuit is connected with the output of operational amplifier T4.
4. 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. infrared amplifier according to claim 4, it is characterized in that, described signal amplification circuit comprises the operational amplifier T5 that output and inverting input are connected by resistance R 14, and an end is connected with the inverting input of operational amplifier T5, the other end is respectively by Xiao Jite diode D7 and the Xiao Jite diode D6 of mutually series connection, the resistance R 13 that resistance R 12 is connected with the output of operational amplifier T4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203552828U CN203301427U (en) | 2013-06-20 | 2013-06-20 | Infrared amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203552828U CN203301427U (en) | 2013-06-20 | 2013-06-20 | Infrared amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301427U true CN203301427U (en) | 2013-11-20 |
Family
ID=49577407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203552828U Expired - Lifetime CN203301427U (en) | 2013-06-20 | 2013-06-20 | Infrared amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301427U (en) |
-
2013
- 2013-06-20 CN CN2013203552828U patent/CN203301427U/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: 20131120 |