CN201118592Y - Single tube infrared transmission/receiving circuit - Google Patents
Single tube infrared transmission/receiving circuit Download PDFInfo
- Publication number
- CN201118592Y CN201118592Y CNU2007201727216U CN200720172721U CN201118592Y CN 201118592 Y CN201118592 Y CN 201118592Y CN U2007201727216 U CNU2007201727216 U CN U2007201727216U CN 200720172721 U CN200720172721 U CN 200720172721U CN 201118592 Y CN201118592 Y CN 201118592Y
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- China
- Prior art keywords
- infrared
- amplification module
- emission
- receiving circuit
- single tube
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a monotube infrared transceiver circuit, comprising an infrared tube module used for converting infrared signals and electric signals; a receiving amplifier module used for amplifying the received signals and a transmitting amplifier module used for amplifying the transmitted signals. The receiving amplifier module has a receiving output end; the transmitting amplifier module has a transmitting input end; the infrared module only contains an infrared transmitting tube; the receiving amplifier module has a receiving enabling end used for controlling if the receiving amplifier module works; the transmitting amplifier module has an transmitting enabling end used for controlling if the transmitting amplifier module works. The monotube infrared transceiver circuit of the utility model can realize the functions of transmitting and receiving only through one infrared tube, with low cost and small structural space.
Description
Technical field
The utility model relates to infrared circuit, is specifically related to a kind of single tube infrared emission receiving circuit.
Background technology
Common infrared emission receiving circuit need adopt two infrared tubes respectively as receiving infrared signal and emission infrared signal respectively, takies bigger space, makes cost higher.
The utility model content
The technical problems to be solved in the utility model is, needs two infrared tubes at prior art, and the shortcoming that cost is higher provides a kind of single tube infrared emission receiving circuit.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of single tube infrared emission receiving circuit, comprise the infrared tube module that is used for infrared signal and electrical signal conversion, be used for reception amplification module that the signal that receives is amplified, be used for the radiation amplification module that amplifies transmitting, described infrared tube module only comprises an infrared transmitting tube, described reception amplification module has and is used to control the reception Enable Pin whether described reception amplification module works, and described emission amplification module has and is used to control the emission Enable Pin whether described emission amplification module works.
In single tube infrared emission receiving circuit described in the utility model, when described reception amplification module was in running order, described emission amplification module was in closed condition.
In single tube infrared emission receiving circuit described in the utility model, when described emission amplification module was in running order, described reception amplification module was in closed condition.
In single tube infrared emission receiving circuit described in the utility model, the shared port of described emission input and described emission Enable Pin.
In single tube infrared emission receiving circuit described in the utility model, described reception amplification module adopts the casacade multi-amplifier cascade.
In single tube infrared emission receiving circuit described in the utility model, described reception amplification module adopts transistor amplifier.
In single tube infrared emission receiving circuit described in the utility model, described emission amplification module adopts the casacade multi-amplifier cascade.
In single tube infrared emission receiving circuit described in the utility model, described emission amplification module adopts transistor amplifier.
The beneficial effects of the utility model are, just can realize transmitting and receiving function by only using an infrared tube, and with low cost, the desired structure space is little.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the module frame chart of the utility model single tube infrared emission receiving circuit;
Fig. 2 is the circuit diagram of a kind of preferred embodiment of the utility model single tube infrared emission receiving circuit.
Embodiment
Below in conjunction with Fig. 2 a preferred embodiment of the utility model single tube infrared emission receiving circuit is described, single tube infrared emission receiving circuit as shown in Figure 2, infrared transmitting tube D1 and pull-up resistor R1 have constituted the infrared tube module; NPN triode Q3 and ground level series resistance R3 have constituted the emission amplification module; PNP triode Q1 and NPN triode Q2 and peripheral discrete device thereof have constituted the reception amplification module.Remote pin port is the emission input, the double simultaneously emission Enable Pin of doing, and receive pin port is for receiving output, and the enablepin port is for receiving Enable Pin.
When the infrared emission state, by software programming, make enable pin port output high level, triode Q1, Q2 does not work, and remote pin port is exported the infrared emission signal then, and after amplifying by triode Q3, infrared transmitting tube is launched infrared signal.
When infrared accepting state, by software programming, make remote pin port output low level, enablepin port output low level, this moment, triode Q3 ended.When the infrared radiation infrared transmitting tube, because semi-conductive photoelectric effect makes infrared transmitting tube produce faint pulse current, through triode Q1, Q2 exports infrared received signal at receive pin port after amplifying.
Claims (8)
1, a kind of single tube infrared emission receiving circuit, comprise the infrared tube module that is used for infrared signal and electrical signal conversion, be used for reception amplification module that the signal that receives is amplified, be used for the radiation amplification module that amplifies transmitting, described reception amplification module has the reception output, described emission amplification module has the emission input, it is characterized in that, described infrared tube module only comprises an infrared transmitting tube, described reception amplification module has and is used to control the reception Enable Pin whether described reception amplification module works, and described emission amplification module has and is used to control the emission Enable Pin whether described emission amplification module works.
2, single tube infrared emission receiving circuit according to claim 1 is characterized in that, when described reception amplification module was in running order, described emission amplification module was in closed condition.
3, single tube infrared emission receiving circuit according to claim 1 is characterized in that, when described emission amplification module was in running order, described reception amplification module was in closed condition.
4, single tube infrared emission receiving circuit according to claim 1 is characterized in that, the shared port of described emission input and described emission Enable Pin.
5, single tube infrared emission receiving circuit according to claim 1 is characterized in that, described reception amplification module adopts the casacade multi-amplifier cascade.
6, single tube infrared emission receiving circuit according to claim 1 is characterized in that, described reception amplification module adopts transistor amplifier.
7, single tube infrared emission receiving circuit according to claim 1 is characterized in that, described emission amplification module adopts the casacade multi-amplifier cascade.
8, single tube infrared emission receiving circuit according to claim 1 is characterized in that, described emission amplification module adopts transistor amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201727216U CN201118592Y (en) | 2007-10-24 | 2007-10-24 | Single tube infrared transmission/receiving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201727216U CN201118592Y (en) | 2007-10-24 | 2007-10-24 | Single tube infrared transmission/receiving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118592Y true CN201118592Y (en) | 2008-09-17 |
Family
ID=39993186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201727216U Expired - Fee Related CN201118592Y (en) | 2007-10-24 | 2007-10-24 | Single tube infrared transmission/receiving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118592Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703757A (en) * | 2014-11-28 | 2016-06-22 | 鸿合科技有限公司 | Transmitting and receiving integrated infrared circuit board |
-
2007
- 2007-10-24 CN CNU2007201727216U patent/CN201118592Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703757A (en) * | 2014-11-28 | 2016-06-22 | 鸿合科技有限公司 | Transmitting and receiving integrated infrared circuit board |
| CN105703757B (en) * | 2014-11-28 | 2018-07-27 | 鸿合科技股份有限公司 | A kind of transceiving integrated infrared circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20161024 |