CN204089826U - Infrared transceiver module - Google Patents
Infrared transceiver module Download PDFInfo
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- CN204089826U CN204089826U CN201420584824.3U CN201420584824U CN204089826U CN 204089826 U CN204089826 U CN 204089826U CN 201420584824 U CN201420584824 U CN 201420584824U CN 204089826 U CN204089826 U CN 204089826U
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- infrared
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- transmitting
- power supply
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Abstract
The utility model discloses a kind of infrared transceiver module, comprise infrared receiving circuit, infrared transmitting circuit, master controller, power control circuit and 38kHz carrier wave coupling circuit; Infrared receiving circuit is connected with the serial ports receiving terminal of master controller, and infrared transmitting circuit is connected with the serial ports transmitting terminal of master controller, and power control circuit is connected with the I/O port of master controller, and 38kHz carrier wave coupling circuit is connected with the I/O port of master controller.The utility model adopts CPU to control timing wake-up functions of receiving and transmitting infrared, can realize the low-power consumption of infrared functional module, to adapt to the demand of battery power supply system; And without the need to gate circuit, operational amplifier or other drive circuits; Circuit structure is simple, and components and parts are few, drastically increase circuit reliability.
Description
Technical field
The utility model relates to a kind of infrared transceiver module.
Background technology
Current infrared transceiver module, adopts gate circuit, operational amplifier or other drive circuits, and circuit structure is complicated, use components and parts more, and circuit static power consumption is large, cannot meet battery power supply system.
Utility model content
The purpose of this utility model is to provide a kind of simple controllable infrared transceiver module.
This infrared transceiver module that the utility model provides, comprises infrared receiving circuit, infrared transmitting circuit, master controller, power control circuit and 38kHz carrier wave coupling circuit; Infrared receiving circuit is connected with the serial ports receiving terminal of master controller, and infrared transmitting circuit is connected with the serial ports transmitting terminal of master controller, and power control circuit is connected with the I/O port of master controller, and 38kHz carrier wave coupling circuit is connected with the I/O port of master controller.
Described power control circuit comprises P channel MOS tube V1, and the grid of metal-oxide-semiconductor V1 is connected with power supply VCC by resistance R1, and its grid is also connected with the I/O port of described master controller, for transmitting infrared receiving/transmission power control signal IR_CTRL; The source electrode of this metal-oxide-semiconductor is connected with power supply VCC, and its drain electrode is connected with infrared receiving/transmission power supply VCC_IR; Power supply VCC is by electric capacity C2 ground connection, and power supply VCC is also connected with the positive terminal of polar capacitor C1, the negative pole end ground connection of this electric capacity; Infrared receiving/transmission power supply VCC_IR is by electric capacity C3 ground connection.
Described master controller adopts the controller comprising serial ports and frequency and be greater than the internal clock oscillators of 38kHz.
Described infrared receiving circuit comprises infrared receiving tube, and the power pin VCC of infrared receiving tube is connected with infrared receiving/transmission power supply VCC_IR by resistance R2, and this power pin is also by electric capacity C4 ground connection; The ground pin GND ground connection of infrared receiving tube; Its output pin OUT is connected with the cathode terminal of diode D1, and the anode tap of this diode is connected with the serial ports of described master controller, receives data-signal RXD for transmitting.
Described infrared transmitting circuit comprises infrared transmitting tube, the anode tap of infrared transmitting tube is connected with infrared receiving/transmission power supply VCC_IR, its cathode terminal is connected by the emitter of resistance with triode V2, the collector electrode of this triode is connected with described 38kHz carrier wave coupling circuit, its base stage is connected with the serial ports of described master controller by resistance R4, sends data-signal TXD for transmitting.
Described 38kHz carrier wave coupling circuit comprises triode V3, and the base stage of this triode is connected with the 38kHz frequency signal output of described master controller by resistance R5, and its collector electrode is connected with infrared transmitting circuit, its grounded emitter.
The utility model adopts CPU to control timing wake-up functions of receiving and transmitting infrared, can realize the low-power consumption of infrared functional module, to adapt to the demand of battery power supply system; And without the need to gate circuit, operational amplifier or other drive circuits; Circuit structure is simple, and components and parts are few, drastically increase circuit reliability.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is power control circuit figure of the present utility model.
Fig. 3 is infrared receiver of the present utility model, infrared emission and 38kHz carrier wave coupling circuit figure.
Embodiment
As shown in Figure 1, the utility model comprises infrared receiving circuit, infrared transmitting circuit, master controller, power control circuit and 38kHz carrier wave coupling circuit.Infrared receiving circuit is connected with the serial ports receiving terminal of master controller, and infrared transmitting circuit is connected with the serial ports transmitting terminal of master controller, and power control circuit is connected with the I/O port of master controller, and 38kHz carrier wave coupling circuit is connected with the I/O port of master controller.
The utility model can adopt model to be that the controller of si1000 is as master controller.This master controller exports 38kHz carrier signal from its I/O mouth P2.2 after adopting internal clock oscillators software simulation, its I/O mouth P2.1 is used for controlling functions of receiving and transmitting infrared mains switch, its I/O mouth P0.4 is as serial ports transmitting terminal TXD, and its I/O mouth P0.5 is as serial ports receiving terminal RXD.Master controller of the present utility model does not limit and uses the controller of this model, as long as master controller comprises serial ports and frequency, to be greater than the internal clock oscillators of 38kHz all applicable.
As shown in Figure 2, power control circuit comprises P channel MOS tube V1, and the grid of metal-oxide-semiconductor V1 is connected with power supply VCC by resistance R1, and its grid is also connected with the I/O port of master controller, for transmitting infrared receiving/transmission power control signal IR_CTRL; The source electrode of this metal-oxide-semiconductor is connected with power supply VCC, and its drain electrode is connected with infrared receiving/transmission power supply VCC_IR; Power supply VCC is by electric capacity C2 ground connection, and power supply VCC is also connected with the positive terminal of polar capacitor C1, the negative pole end ground connection of this electric capacity; Infrared receiving/transmission power supply VCC_IR is by electric capacity C3 ground connection.
The holding wire of infrared receiving/transmission power control signal IR_CTRL is electrically connected to the I/O pin of master controller, and when this I/O pin of master controller exports as high level, metal-oxide-semiconductor V1 ends, and infrared receiving circuit and infrared transmitting circuit all do not work; When this pin exports as low level, metal-oxide-semiconductor V1 conducting, infrared receiving circuit and infrared transmitting circuit all can normally work.The utility model can adopt the control model of timing wake-up, whether implements effective control, greatly reduce the quiescent dissipation of circuit to the work of infrared receiving circuit and infrared transmitting circuit.
As shown in Figure 3, infrared receiving circuit comprises infrared receiving tube U1; The power pin VCC of infrared receiving tube U1 is connected with infrared receiving/transmission power supply VCC_IR by resistance R2, and this power pin is also by electric capacity C4 ground connection; The ground pin GND ground connection of infrared receiving tube; Its output pin OUT is connected with the cathode terminal of diode D1, and the anode tap of this diode is connected with the serial ports of master controller, receives data-signal RXD for transmitting.
The holding wire receiving data-signal RXD is electrically connected to master controller serial ports receiving terminal RXD.Infrared receiving tube U1 can adopt model to be the infrared receiving tube of HM638R, and the light signal received is converted to the signal of telecommunication and transmits by it.Diode D1 plays one-way conduction effect, and defeated to avoid signal to misinformate, electric capacity C4 is infrared receiving tube power supply coupling capacitor, and resistance R2 is power supply pull-up resistor, and the use of resistance R2 and electric capacity C4 ensures the work that infrared receiving tube U1 is reliable and stable.
As shown in Figure 3, infrared transmitting circuit comprises infrared transmitting tube D2; The anode tap of infrared transmitting tube D2 is connected with infrared receiving/transmission power supply VCC_IR, its cathode terminal is connected by the emitter of resistance with triode V2, the collector electrode of this triode is connected with 38kHz carrier wave coupling circuit, its base stage is connected with the serial ports of master controller by resistance R4, sends data-signal TXD for transmitting.
The holding wire sending data-signal TXD is electrically connected to master controller serial ports transmitting terminal TXD.Infrared transmitting tube D2 can adopt model to be the infrared transmitting tube of AT205B, and the signal of telecommunication after modulation is converted to light signal and transmits by it.When the serial ports transmitting terminal TXD of master controller exports high level, triode V2 ends, and infrared transmitting tube D2 is not luminous; When this serial ports transmitting terminal output low level, triode V2 conducting, infrared transmitting tube D2 is luminous.
As shown in Figure 3,38kHz carrier wave coupling circuit comprises triode V3, and the base stage of triode V3 is connected with the 38kHz frequency signal output of master controller by resistance R5, and its collector electrode is connected with infrared transmitting circuit, its grounded emitter.
38kHz carrier wave coupling circuit provides necessary modulation signal for infrared communication.
Claims (6)
1. an infrared transceiver module, is characterized in that, comprises infrared receiving circuit, infrared transmitting circuit, master controller, power control circuit and 38kHz carrier wave coupling circuit; Infrared receiving circuit is connected with the serial ports receiving terminal of master controller, and infrared transmitting circuit is connected with the serial ports transmitting terminal of master controller, and power control circuit is connected with the I/O port of master controller, and 38kHz carrier wave coupling circuit is connected with the I/O port of master controller.
2. infrared transceiver module according to claim 1, it is characterized in that, described power control circuit comprises P channel MOS tube V1, the grid of metal-oxide-semiconductor V1 is connected with power supply VCC by resistance R1, its grid is also connected with the I/O port of described master controller, for transmitting infrared receiving/transmission power control signal IR_CTRL; The source electrode of this metal-oxide-semiconductor is connected with power supply VCC, and its drain electrode is connected with infrared receiving/transmission power supply VCC_IR; Power supply VCC is by electric capacity C2 ground connection, and power supply VCC is also connected with the positive terminal of polar capacitor C1, the negative pole end ground connection of this electric capacity; Infrared receiving/transmission power supply VCC_IR is by electric capacity C3 ground connection.
3. infrared transceiver module according to claim 1, is characterized in that, described master controller adopts the controller comprising serial ports and frequency and be greater than the internal clock oscillators of 38kHz.
4. infrared transceiver module according to claim 1, it is characterized in that, described infrared receiving circuit comprises infrared receiving tube, and the power pin VCC of infrared receiving tube is connected with infrared receiving/transmission power supply VCC_IR by resistance R2, and this power pin is also by electric capacity C4 ground connection; The ground pin GND ground connection of infrared receiving tube; Its output pin OUT is connected with the cathode terminal of diode D1, and the anode tap of this diode is connected with the serial ports of described master controller, receives data-signal RXD for transmitting.
5. infrared transceiver module according to claim 1, it is characterized in that, described infrared transmitting circuit comprises infrared transmitting tube, the anode tap of infrared transmitting tube is connected with infrared receiving/transmission power supply VCC_IR, its cathode terminal is connected by the emitter of resistance with triode V2, the collector electrode of this triode is connected with described 38kHz carrier wave coupling circuit, and its base stage is connected with the serial ports of described master controller by resistance R4, sends data-signal TXD for transmitting.
6. infrared transceiver module according to claim 3, it is characterized in that, described 38kHz carrier wave coupling circuit comprises triode V3, the base stage of this triode is connected with the 38kHz frequency signal output of described master controller by resistance R5, its collector electrode is connected with infrared transmitting circuit, its grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584824.3U CN204089826U (en) | 2014-10-11 | 2014-10-11 | Infrared transceiver module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584824.3U CN204089826U (en) | 2014-10-11 | 2014-10-11 | Infrared transceiver module |
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| Publication Number | Publication Date |
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| CN204089826U true CN204089826U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420584824.3U Active CN204089826U (en) | 2014-10-11 | 2014-10-11 | Infrared transceiver module |
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| CN (1) | CN204089826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461301A (en) * | 2017-09-06 | 2019-03-12 | 深圳市海洋王照明工程有限公司 | Infrared transponder |
-
2014
- 2014-10-11 CN CN201420584824.3U patent/CN204089826U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461301A (en) * | 2017-09-06 | 2019-03-12 | 深圳市海洋王照明工程有限公司 | Infrared transponder |
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| GR01 | Patent grant |