CN202306811U - Infrared remote control signal transponder - Google Patents
Infrared remote control signal transponder Download PDFInfo
- Publication number
- CN202306811U CN202306811U CN2011203999601U CN201120399960U CN202306811U CN 202306811 U CN202306811 U CN 202306811U CN 2011203999601 U CN2011203999601 U CN 2011203999601U CN 201120399960 U CN201120399960 U CN 201120399960U CN 202306811 U CN202306811 U CN 202306811U
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- resistance
- remote control
- operational amplifier
- circuit
- infrared
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Abstract
The utility model discloses an infrared remote control signal transponder. The signal transponder consists of a 12V DC (direct current) power supply, an infrared signal receiving circuit, a signal comparing amplifying and positive feedback circuit and a power amplifying transmitting and working state indication circuit, wherein the type of an operational amplifier IC1 in the signal comparing amplifying and positive feedback circuit is CA3140. The infrared remote control signal transponder disclosed by the utility model can be used for an infrared remote controller in one room to remotely control the infrared control equipment in another room or upstairs, and actually, the signal transponder is a relay device for an infrared remote control signal. According to the utility model, a television set in a bedroom can be connected to the signal of a satellite receiver in another room; and the infrared remote control signal transponder relays and amplifies the infrared remote control signal to realize long-distance (longer than 15m) transmission or non-linear transmission of the infrared remote control signal.
Description
Technical field
The utility model belongs to electronic technology and infrared ray control technology field, is about a kind of infrared remote control signal transponder.
Background technology
Mostly the effective control distance of common infrared remote controller is 7m, and it can only control the electronic equipment in the direct-view scope, and not in the direct line of sight scope, it is powerless that common infrared remote controller just seems greater than 7m or Be Controlled object for distance.This utility model can be used for infrared remote controller in a room in another room of Long-distance Control or infra-red remote control equipment upstairs, and in fact it is exactly the relaying multiplying arrangement of an infrared remote control signal.For example: if the televisor in a bedroom is connected to the signal of the DVB in another room; So when you need remote control to change the television channel of DVB; You can use the telepilot of DVB in the bedroom; Amplify infrared remote-controlled signal through infrared remote control signal transponder relaying, realize the purpose of infrared remote control signal remote (greater than 15m) or non-rectilinear transmission.
Below specify the described infrared remote control signal transponder of the utility model related relevant technologies content in manufacturing process.
The utility model content
Goal of the invention and beneficial effect: the utility model can be used for infrared remote controller another room of Long-distance Control or infrared control appliance upstairs in a room, and in fact it is exactly the relaying multiplying arrangement of an infrared remote control signal.For example: if the televisor in a bedroom is connected to the signal of the DVB in another room; So when you need remote control to change the television channel of DVB; You can use the telepilot of DVB in the bedroom; Amplify infrared remote-controlled signal through infrared remote control signal transponder relaying, realize the purpose of infrared remote control signal remote (greater than 15m) or non-rectilinear transmission.
Technical characterictic: the infrared remote control signal transponder, by 12V direct supply DC, infrared signal receiving circuit, signal relatively amplification and positive-feedback circuit, power amplification emission and duty indicating circuit form, it is characterized in that:
Infrared signal receiving circuit: form by silicon photoelectric diode D1 and resistance R 1; The negative pole of silicon photoelectric diode D1 connects 2 pin of operational amplifier IC1; The positive pole of silicon photoelectric diode D1 connects 3 pin of operational amplifier IC1 and an end of resistance R 1, the other end connection circuit ground GND of resistance R 1;
Signal relatively amplifies and positive-feedback circuit: be made up of operational amplifier IC1 and resistance R 2; The model of operational amplifier IC1 is selected CA3140 for use; The end of the 2 pin connecting resistance R2 of operational amplifier IC1; 6 pin of another termination operational amplifier IC1 of resistance R 2, the anodal VCC of the 7 pin connection circuits of operational amplifier IC1, the 4 pin connection circuit ground GND of operational amplifier IC1;
Power amplification emission and duty indicating circuit: form by NPN transistor VT1, resistance R 3, red light emitting diodes LED1 and resistance R 4, infrared light emitting diode LED2 and resistance R 5; The end of the base stage connecting resistance R3 of NPN transistor VT1; 6 pin of another termination operational amplifier IC1 of resistance R 3; The end of the collector connecting resistance R4 of NPN transistor VT1, the negative pole of another termination red light emitting diodes LED1 of resistance R 4, the positive pole of red light emitting diodes LED1 links to each other with circuit anode VCC; The end of the collector connecting resistance R5 of NPN transistor VT1; The negative pole of another termination infrared light emitting diode LED2 of resistance R 5, the positive pole of infrared light emitting diode LED2 links to each other with circuit anode VCC, the emitter connection circuit ground GND of NPN transistor VT1.
The connection features that the composition of other partial circuits and components and parts are mutual
The positive pole of 12V direct supply DC links to each other with circuit anode VCC, and the negative pole of 12V direct supply DC links to each other with circuit ground GND.
The circuit working principle: when pressing the button of DVB telepilot, the infrared remote control signal transponder receives the common LED 1 of infrared signal and is lighted.The wavelength coverage of most of IR remote controller emissions is between 850～950 μ m, and ultrared peak wavelength is about 880 μ m.Because the utility model adopts low output impedance, is unfavorable for the pick-up noise signal, the pulse code that infrared remote controller uses has thousands of kinds of combinations.
When silicon photoelectric diode D1 received infrared radiation, when silicon photoelectric diode D1 can produce pulse voltage, this pulse voltage was amplified through operational amplifier IC1, with the output current that produces about 0.1 μ A.Output current can be lighted two LED after being amplified by NPN transistor VT1 common emitter pattern.Resistance R 3 is used to limit the base current of NPN transistor VT1.The DVB IR remote controller is radiated on the silicon photoelectric diode D1, and circuit will be lighted 2 LEDs at last.These 2 light emitting diodes, LED1 is common red light emitting diodes, is used to indicate the emission state of infrared signal, and LED2 is an infrared light emitting diode, and resistance R 2 is established for positive-feedback circuit.
Description of drawings
Accompanying drawing 1 is the embodiment circuit working schematic diagram that the utility model provides an infrared remote control signal transponder, and the negative pole of 12V direct supply DC links to each other with circuit ground GND.
Embodiment
The technical requirement of circuit working schematic diagram and description of drawings and the following stated shown in the accompanying drawing 1 is implemented to specifications, can realize the utility model.
The parameter of components and parts and selection requirement
IC1 is the MOSFET operational amplifier, and model is selected CA3140 for use, and it is 8 pin dual inline type DIP encapsulation; It uses the operational amplifier of a slice MOSFET for input; Its input impedance has extremely low input current (10PA) up to 1.5T Ω, is well suited for to do the feeble signal amplification;
D1 is a silicon photoelectric diode; Infrared wavelength responding range 400～1100 μ m of silicon photoelectric diode; Can receive or compatible all infrared signals, the silicon photoelectric diode in the transponder receiving circuit, model commonly used is the SFH2030 silicon photoelectric diode; Its performance is very responsive, and the wide characteristics of infrared spectrum frequency response range are arranged.For guaranteeing ability reliable reception infrared ray under the sunlight direct projection; So silicon photoelectric diode is not used under the environment of sunlight direct projection; It is SFH2030F that SFH2030 has a version model in addition, and it is with a day light-filter, and it can strengthen the interference of anti-sunlight direct projection;
LED1 is the common red light emitting diodes of ￠ 5mm; LED2 is an infrared light emitting diode, and model is selected TIL38 for use;
VT1 is a NPN transistor, and model is BC337;
The resistance of resistance R 1 is 4.7M Ω; The resistance of resistance R 2 is 2.7M Ω; Resistance R 3 resistances are 1K Ω; The resistance of resistance R 4 is 1.2K Ω; The power of resistance R 5 is 1/2W, and its resistance is 27 Ω;
The WV of the direct supply DC of present embodiment is 12V.
Circuit production, debugging and use
Outside the MOSFET operational amplifier CA3140 institute target pin in the circuit working schematic diagram, other obsolete 1 pin, pin 5 and 8 pin can not be unsettled, generally require connection circuit ground GND.
When infrared ray emitting diode sensing opertaing device, as: DVB, video, CD player etc., guarantee just can operate as normal in the direct-view scope.Through testing: 12V direct supply stand-by operation electric current is about 1.2mA, the about 60mA of the working current during infrared, infrared distance >=12m.
Improve the command range or the scope of infrared remote control signal transponder; Need the infrared remote control signal transponder be placed on more satisfactory position; If Be Controlled object (equipment) is not within visual range; As: need control the remote control equipment in another room in a room, so can with the infrared remote control signal transponder place two rooms outdoors between the high place of 2m get final product.In case of necessity can be respectively silicon photoelectric diode and infrared light emitting diode be adjusted to one and help the angle that receives and launch, to improve the sensitivity of infrared remote control signal command range and control.
Claims (3)
1. infrared remote control signal transponder, by 12V direct supply DC, infrared signal receiving circuit, signal relatively amplification and positive-feedback circuit, power amplification emission and duty indicating circuit form, it is characterized in that:
The infrared signal receiving circuit is made up of silicon photoelectric diode D1 and resistance R 1; The negative pole of silicon photoelectric diode D1 connects 2 pin of operational amplifier IC1; The positive pole of silicon photoelectric diode D1 connects 3 pin of operational amplifier IC1 and an end of resistance R 1, the other end connection circuit ground GND of resistance R 1;
Signal relatively amplifies and positive-feedback circuit is made up of operational amplifier IC1 and resistance R 2; The end of the 2 pin connecting resistance R2 of operational amplifier IC1; 6 pin of another termination operational amplifier IC1 of resistance R 2; The anodal VCC of the 7 pin connection circuits of operational amplifier IC1, the 4 pin connection circuit ground GND of operational amplifier IC1;
Power amplification emission and duty indicating circuit are made up of NPN transistor VT1, resistance R 3, red light emitting diodes LED1 and resistance R 4, infrared light emitting diode LED2 and resistance R 5; The end of the base stage connecting resistance R3 of NPN transistor VT1; 6 pin of another termination operational amplifier IC1 of resistance R 3; The end of the collector connecting resistance R4 of NPN transistor VT1, the negative pole of another termination red light emitting diodes LED1 of resistance R 4, the positive pole of red light emitting diodes LED1 links to each other with circuit anode VCC; The end of the collector connecting resistance R5 of NPN transistor VT1; The negative pole of another termination infrared light emitting diode LED2 of resistance R 5, the positive pole of infrared light emitting diode LED2 links to each other with circuit anode VCC, the emitter connection circuit ground GND of NPN transistor VT.
2. infrared remote control signal transponder according to claim 1 is characterized in that: signal relatively amplify and positive-feedback circuit in the model of operational amplifier IC1 select CA3140 for use.
3. infrared remote control signal transponder according to claim 1 is characterized in that: the positive pole of 12V direct supply DC links to each other with circuit anode VCC, and the negative pole of 12V direct supply DC links to each other with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999601U CN202306811U (en) | 2011-10-20 | 2011-10-20 | Infrared remote control signal transponder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999601U CN202306811U (en) | 2011-10-20 | 2011-10-20 | Infrared remote control signal transponder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202306811U true CN202306811U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203999601U Expired - Fee Related CN202306811U (en) | 2011-10-20 | 2011-10-20 | Infrared remote control signal transponder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202306811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509443A (en) * | 2011-10-20 | 2012-06-20 | 黄宇嵩 | IR remote control signal repeater |
| CN106357319A (en) * | 2016-10-21 | 2017-01-25 | 佛山市禅城区盛晖电子厂 | One-way wireless remote control signal relay system |
-
2011
- 2011-10-20 CN CN2011203999601U patent/CN202306811U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509443A (en) * | 2011-10-20 | 2012-06-20 | 黄宇嵩 | IR remote control signal repeater |
| CN102509443B (en) * | 2011-10-20 | 2013-05-01 | 黄宇嵩 | IR remote control signal repeater |
| CN106357319A (en) * | 2016-10-21 | 2017-01-25 | 佛山市禅城区盛晖电子厂 | One-way wireless remote control signal relay system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20121020 |