CN203562094U - Infrared remote control studying circuit - Google Patents
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- CN203562094U CN203562094U CN201320645718.7U CN201320645718U CN203562094U CN 203562094 U CN203562094 U CN 203562094U CN 201320645718 U CN201320645718 U CN 201320645718U CN 203562094 U CN203562094 U CN 203562094U
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Abstract
The utility model discloses an infrared remote control studying circuit. The infrared remote control studying circuit comprises an electricity taking circuit, a voltage raising circuit, an infrared emission driving circuit, an emission triggering signal conversion circuit, an infrared receiving circuit and a CPU (Central Processing Unit) processing circuit, wherein the electricity taking circuit is used for converting a sinusoidal voltage signal output by an audio interface into first direct-current voltage; the voltage raising circuit is used for raising the first direct-current voltage into second direct-current voltage; the infrared emission driving circuit is used for driving an infrared light emitting diode by a second emission control signal output by the CPU processing circuit; the emission triggering signal conversion circuit is used for converting an emission triggering signal output by the audio interface into a first emission control signal; the infrared receiving circuit is used for receiving an external infrared signal and outputting a first infrared receiving signal; the CPU processing circuit is used for converting a first emission control signal output by the emission triggering signal conversion circuit into the second emission control signal, converting a first infrared receiving signal output by the infrared receiving circuit into a second infrared receiving signal and transmitting the second infrared receiving signal to the audio interface of intelligent electronic equipment. The infrared remote control studying circuit has the characteristics of simple structure and clear principle.
Description
Technical field
The application relates to a kind of learning type infrared remote-controller, particularly relates to the learning type infrared remote-controller of the array configuration of a kind of intelligent electronic device and external accessories.
Background technology
Infrared remote controller (IR Remote Control) is that to utilize wavelength be the remote control equipment that infrared signal between 0.76～1.5 μ m is carried out transfer control signal, being widely used of Industry Control, field of household appliances.Described infrared signal is converted by electric signal, for example with the having of infrared light, without representing respectively the high and low level of electric signal.
Learning type infrared remote-controller (Self-Learning IR Remote Control) can be used to simulate existing Infrared remote controller.It is equivalent to key semifinished product, can carve the key of arbitrary shape.As long as existing Infrared remote controller is aimed to learning type infrared remote-controller transmitting infrared signal, learning type infrared remote-controller just can be grasped this infrared signal (being called " study ") and have all functions of former telepilot.
At present existing external accessories is connected by the earphone interface of the intelligent electronic devices such as audio connector and mobile phone, panel computer, thus formation learning type infrared remote-controller.For example application publication number is CN102368350A, Shen Qing Publication day to be that the Chinese invention patent application (hereinafter to be referred as A application) on March 7th, 2012 discloses a kind of apparatus and method that realize versatility Infrared remote controller based on mobile phone.Device in A application is mainly comprised of microprocessor chip, peripheral components, power supply, headset plug, has Infrared Remote-Control Sending and learning functionality simultaneously.Between this device and mobile phone, by headset plug, be connected, and adopt serial interface communication mode.Communication data is between the two prerecorded into 256 kinds of audio files with byte form, by analyzing audio file learn representative byte data.Because the record of instructions is not detailed, from the angle of one of ordinary skill in the art, infer, what between this device and mobile phone, transmit is infrared ray remotes control code.On the one hand, microprocessor chip carries out signal modulation and is sent by peripheral components according to infrared ray remotes control code, i.e. " transmitting " function; On the other hand, peripheral components returns to mobile phone after receiving infrared signal and analyzing infrared ray remotes control code by microprocessor chip, i.e. " study " function.
Utility model content
The application's technical matters to be solved is to provide a kind of infrared remote control learning circuit simple in structure, can be connected with the audio interface of intelligent electronic device by audio connector, thereby form learning type infrared remote-controller.
For solving the problems of the technologies described above, the application's infrared remote control learning circuit comprises:
---power-supply circuit, the audio interface of connection intelligent electronic device, is converted to the first DC voltage by the sine voltage signal of audio interface output, is infrared emission drive circuit power supply;
---booster circuit is the second DC voltage by the first DC voltage lifting, is transmitting trigger pip change-over circuit, infrared receiving circuit, the power supply of CPU treatment circuit;
---infrared emission drive circuit, with the second emissioning controling signal driving infrarede emitting diode of CPU treatment circuit output;
---transmitting trigger pip change-over circuit, is converted to the transmitting trigger pip of the audio interface output of intelligent electronic device the first emissioning controling signal and passes to CPU treatment circuit;
---infrared receiving circuit, receives extraneous infrared signal and exports the first infrared reception signal;
---CPU treatment circuit, the first emissioning controling signal of transmitting trigger pip change-over circuit output is converted to the second emissioning controling signal and passes to infrared emission drive circuit, and the first infrared reception signal of also infrared receiving circuit being exported is converted to the second infrared reception signal and passes to the audio interface of intelligent electronic device.
Further, described power-supply circuit comprises an audio connector, four commutation diodes, four electric capacity, three resistance; This audio connector has L channel, R channel, ground wire and four pins of microphone; All the time export sine voltage signal for one in the two-channel pin of this audio interface, another output transmitting trigger pip; In the L channel pin of this audio connector or R channel pin one is connected to by electric capacity one between the diode one and diode two of series connection, another is connected between the diode three and diode four of series connection by electric capacity two, the ground wire pin ground connection of this audio connector, the microphone pin of this audio connector is by resistance one ground connection; The L channel of this audio connector, R channel pin are also respectively by resistance seven, resistance eight ground connection; The anode of the anode of diode two and diode three is connected and ground connection; The negative electrode of the negative electrode of diode one and diode four is connected and exports the first DC voltage; Electric capacity three and electric capacity four parallel connections, and the negative electrode of a terminating diode four, other end ground connection.
Or described power-supply circuit comprises an audio connector, two commutation diodes, three electric capacity, three resistance; This audio connector has L channel, R channel, ground wire and four pins of microphone; All the time export sine voltage signal for one in the two-channel pin of this audio interface, another output transmitting trigger pip; All the time the pin of exporting sine voltage signal of this audio connector is connected to by electric capacity one between the diode one and diode two of series connection, the ground wire pin ground connection of this audio connector, and the microphone pin of this audio connector is by resistance one ground connection; The L channel of this audio connector, R channel pin are also respectively by resistance seven, resistance eight ground connection; The plus earth of diode two; The negative electrode of diode one is exported the first DC voltage; Electric capacity three and electric capacity four parallel connections, and the negative electrode of a terminating diode one, other end ground connection;
Or the pin of exporting all the time sine voltage signal of this audio connector is connected to by electric capacity two between the diode three and diode four of series connection, the plus earth of diode three; The negative electrode of diode four is exported the first DC voltage; Electric capacity three and electric capacity four parallel connections, and the negative electrode of a terminating diode four, other end ground connection.
Further, described booster circuit comprises two commutation diodes, two electric capacity; The anode of the first direct current crimping diode five, the pin of exporting all the time sine voltage signal of audio connector is connected between the diode five and diode six of series connection by electric capacity five; The negative electrode of diode six both, by electric capacity six ground connection, was exported again the second DC voltage.
Further, described infrared emission drive circuit comprises two resistance, infrarede emitting diode, npn type bipolar transistor or MOS transistor; The first DC voltage connects the anode of infrarede emitting diode by resistance two, the negative electrode of infrarede emitting diode connects the collector of transistor one; The second emissioning controling signal of CPU treatment circuit output connects the base stage of transistor one, the grounded emitter of transistor one by resistance three.
Further, described transmitting trigger pip change-over circuit comprises two resistance, electric capacity, npn type bipolar transistor or MOS transistor; The pin of the output transmitting trigger pip of audio connector is connected to the base stage of transistor two by resistance four; Between the collector and emitter of transistor two, be connected with electric capacity seven; The collector of transistor two also connects the second DC voltage by resistance five; The collector of transistor two is also exported the first emissioning controling signal; The grounded emitter of transistor two.
Further, described infrared receiving circuit comprises an electric capacity, an integrated infrared receiving terminal; The pin one of infrared receiving terminal is for exporting the first infrared reception signal, pin two ground connection, and pin three connects the second DC voltage; Between the pin two of infrared receiving terminal and pin three, be connected with electric capacity eight.
Further, described CPU treatment circuit comprises a single-chip microcomputer, a resistance; The pin one of single-chip microcomputer receives the first infrared reception signal, pin two output the second infrared reception signals also pass through the microphone pin that resistance six connects audio connectors, pin three connects the second DC voltage, pin four ground connection, pin five receives the first emissioning controling signal, pin six output the second emissioning controling signals.
The application's infrared remote control learning circuit can be connected to the audio interface of intelligent electronic device, thereby forms a learning type infrared remote-controller.That this infrared remote control learning circuit has is simple in structure, principle feature clearly.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the application's infrared remote control learning circuit;
Fig. 2 is the concrete structure schematic diagram of power-supply circuit;
Fig. 2 a, Fig. 2 b are two kinds of distressed structure schematic diagram of power-supply circuit;
Fig. 3 is the concrete structure schematic diagram of booster circuit;
Fig. 4 is the concrete structure schematic diagram of infrared emission drive circuit;
Fig. 5 is the concrete structure schematic diagram of transmitting trigger pip change-over circuit;
Fig. 6 is the concrete structure schematic diagram of infrared receiving circuit;
Fig. 7 is the concrete structure schematic diagram of CPU treatment circuit.
Description of reference numerals in figure:
D1 to D7 is diode, and wherein D7 is infrared-emitting diode; C1 to C8 is electric capacity; R1 to R6 is resistance; Q1 and Q2 are npn type bipolar transistor or MOS transistor; U3 is single-chip microcomputer; U4 is infrared receiving terminal.
Embodiment
Refer to Fig. 1, the application's infrared remote control learning circuit comprises:
---power-supply circuit, comprising there being audio connector can be connected to the audio interface of intelligent electronic device.The audio interface of intelligent electronic device at least have L channel, R channel,, four pins of microphone, it is by an output transmitting trigger pip in L channel pin or R channel pin, another exports sine voltage signal all the time.Described transmitting trigger pip is sine voltage signal and low level combination.That sound channel pin that described power-supply circuit will be exported transmitting trigger pip is on the one hand connected to transmitting trigger pip change-over circuit, on the other hand two-channel pin or the sine voltage signal of exporting all the time the pin output of sine voltage signal are converted to the first stable DC voltage, then the second infrared reception the signal on the one hand transmission of CPU treatment circuit being come passes to the audio interface of intelligent electronic device by microphone pin.Described the first DC voltage is infrared emission drive circuit power supply.
---booster circuit is the second DC voltage by the first DC voltage lifting, thereby is transmitting trigger pip change-over circuit, infrared receiving circuit, the power supply of CPU treatment circuit.
---infrared emission drive circuit, receives the second emissioning controling signal of CPU treatment circuit output, and by it, controls infrarede emitting diode and whether launch infrared signal.
---transmitting trigger pip change-over circuit, is converted to the transmitting trigger pip of the sinusoidal signal form of the audio interface output of intelligent electronic device the first emissioning controling signal and passes to CPU treatment circuit.When the transmitting trigger pip of the audio interface output of intelligent electronic device is low level, transmitting trigger pip change-over circuit is not worked, or does not export the first emissioning controling signal, or the first emissioning controling signal of output disarmed state.
---infrared receiving circuit, comprising integrated infrared receiving terminal, receives extraneous infrared signal and exports the first infrared reception signal.
---CPU treatment circuit, when receiving the first emissioning controling signal of transmitting trigger pip change-over circuit output, just to infrared emission drive circuit, export the second emissioning controling signal; When receiving the first infrared reception signal of infrared receiving circuit output, just to power-supply circuit, export the second infrared reception signal.
Refer to Fig. 2, described power-supply circuit comprises an audio connector J1, four commutation diode D1 to D4, four capacitor C 1 to C4, three resistance R 1, R7 and R8.This audio connector J1 is four-core audio connector, has four pins, is respectively L channel, R channel, ground wire and microphone (order of the pin of different standards may change).In the L channel pin of this audio connector J1 or R channel pin one is connected to by electric capacity one C1 between diode one D1 and diode two D2 of series connection, the L channel pin of this audio connector J1 or another in R channel pin are connected between diode three D3 and diode four D4 of series connection by electric capacity two C2, the ground wire pin ground connection of this audio connector J1, the microphone pin of this audio connector J1 is by resistance one R1 ground connection.The L channel of this audio connector J1, R channel pin are also respectively by resistance seven R7, resistance eight R8 ground connection.The anode of the anode of diode two D2 and diode three D3 is connected and ground connection.The negative electrode of the negative electrode of diode one D1 and diode four D4 is connected and exports the first DC voltage VCC.Electric capacity three C3 and electric capacity four C4 are in parallel, and the negative electrode of terminating diode four D4, other end ground connection.
The principle of work of described power-supply circuit is: audio connector J1 is for example inserted into, in the audio interface of intelligent electronic device (mobile phone), the R channel pin of this audio interface is exported sine voltage signal all the time, L channel pin output transmitting trigger pip (be only example, or contrary).When the R channel pin on audio connector J1 is exported the negative half-cycle of sinusoidal signal, electric current is along the direction of arrow A: ground wire charges to electric capacity two C2 by diode three D3, the stored voltage of electric capacity two C2 is the forward voltage that the absolute value of negative peak voltage of the R channel pin output of audio connector J1 deducts diode three D3, now diode four D4 cut-offs.When the R channel pin on audio connector J1 is exported the positive half period of sinusoidal signal, the maximum voltage of the node M between diode three D3 and diode four D4 is the stored voltage that the positive peak voltage of the R channel pin output of audio connector J1 adds electric capacity two C2.Now electric current is along the direction of arrow B: diode four D4 conductings, diode three D3 cut-offs, electric capacity two C2 charge to electric capacity three C3 and electric capacity four C4 by diode four D4, and charging voltage is that the positive peak voltage of the R channel pin output of audio connector J1 adds that the stored voltage of electric capacity two C2 deducts the forward voltage of diode four D4 again.In like manner, the L channel pin of audio connector J1 is when the negative half-cycle of output sinusoidal signal, along the direction of arrow C: diode two D2 conductings, diode one D1 cut-off; The L channel pin of audio connector J1 is when the positive half period of output sinusoidal signal, along the direction of arrow D: diode one D1 conducting, and diode two D2 cut-offs, electric capacity one C1 charges to electric capacity three C3 and electric capacity four C4 by diode one D1.So just formed the first stable DC voltage VCC at the two ends of electric capacity three C3 and electric capacity four C4 with output.In the inside of intelligent electronic device, the microphone pin of audio interface also connects the operating voltage of intelligent electronic device by pull-up resistor, and this pull-up resistor and resistance one R1 form dividing potential drop, thereby make the microphone pin of audio connector J1 have static magnitude of voltage.The resistance of resistance seven R7, resistance eight R8 is very large, and the electric current flowing through is negligible, is used for making the L channel of audio connector J1, R channel pin to form path, so that intelligent electronic device detects audio interface, has inserted audio connector J1.
Power-supply circuit shown in Fig. 2 has been used the two-channel pin of audio connector J1, also can only use the monophony pin of exporting all the time sine voltage signal of audio connector J1.When the L channel pin of audio connector J1 is exported sine voltage signal all the time, as shown in Figure 2 a.When the R channel pin of audio connector J1 is exported sine voltage signal all the time, as shown in Figure 2 b.The current capacity that offers load of the first DC voltage VCC exporting when the first DC voltage VCC ratio of now power-supply circuit output is used two-channel pin is lower.
Refer to Fig. 3, described booster circuit comprises two commutation diode D5 and D6, two capacitor C 5 and C6.The first DC voltage VCC connects the anode of diode five D5, and the monophony pin of exporting all the time sine voltage signal of audio connector J1 is connected between diode five D5 and diode six D6 of series connection by electric capacity five C5.The negative electrode of diode six D6 both, by electric capacity six C6 ground connection, was exported again the second DC voltage VDD.
Principle of work and the power-supply circuit of described booster circuit are similar: the monophony pin of exporting all the time sine voltage signal (take R channel pin as example) of a termination audio interface J1 of electric capacity five C5, when this R channel pin is exported the negative half-cycle of sinusoidal signal, electric current is along the direction of arrow E: the first DC voltage VCC charges to electric capacity five C5 by diode five D5, diode six D6 cut-offs simultaneously.When the positive half period of this R channel pin output sinusoidal signal, electric current is along the direction of arrow F: the maximum voltage of the node between diode five D5 and diode six D6 is the stored voltage that the positive peak voltage of the R channel pin output of audio connector J1 adds electric capacity five C5.Now diode six D6 conductings, diode five D5 cut-offs, electric capacity five C5 charge to electric capacity six C6.Now the voltage of electric capacity six C6 is roughly the forward voltage that positive peak voltage that the first DC voltage VCC adds 2 times deducts diode five D5 and diode six D6 again, higher with respect to the first DC voltage VCC from the second DC voltage VDD of electric capacity six C6 outputs, thus reached the object of boosting.
Refer to Fig. 4, described infrared emission drive circuit comprises two resistance R 2 and R3, infrarede emitting diode D7, npn type bipolar transistor or MOS transistor Q1.The first DC voltage VCC connects the anode of infrarede emitting diode D7 by resistance two R2, the negative electrode of infrarede emitting diode D7 connects the collector (or drain electrode) of transistor one Q1.The second emissioning controling signal pwm signal of being exported by CPU treatment circuit connects the base stage (or grid) of transistor one Q1, emitter (or source electrode) ground connection of transistor one Q1 by resistance three R3.
The principle of work of described infrared emission drive circuit is: by transistor one Q1, the pwm signal of voltage form is zoomed into the driving signal of the infrarede emitting diode D7 of current forms, whether infrarede emitting diode D7 launches infrared signal and just receive the control of pwm signal completely like this.
Refer to Fig. 5, described transmitting trigger pip change-over circuit comprises two resistance R 4 and R5, capacitor C 7, npn type bipolar transistor or a MOS transistor Q2.The pin of the output transmitting trigger pip of audio connector J1 is connected to the base stage (or grid) of transistor two Q2 by resistance four R4.Between the collector of transistor two Q2 (or drain electrode) and emitter (or source electrode), be connected with electric capacity seven C7.The collector of transistor two Q2 also meets the second DC voltage VDD by resistance five R5.The collector of transistor two Q2 is also exported the first emissioning controling signal Edge_fall.The grounded emitter of transistor two Q2.
The principle of work of described transmitting trigger pip change-over circuit is: the pin (take L channel pin as example) of the output transmitting trigger pip of a termination audio interface J1 of resistance four R4, the base stage of another termination transistor two Q2.Intelligent electronic device is not when needing to export infrared signal, by the transmitting trigger pip of L channel pin output low level form.When intelligent electronic device is exported infrared signal at needs, by the transmitting trigger pip of L channel pin output sinusoidal signal form, now transistor two Q2 conductings, the first emissioning controling signal Edge_fall becomes low level by high level.Single-chip microcomputer identifies the negative edge of Edge_fall signal, and output determines whether to launch the second emissioning controling signal PWM of infrared signal.
Refer to Fig. 6, described infrared receiving circuit comprises a capacitor C 8, an integrated infrared receiving terminal U4.The pin one of infrared receiving terminal U4 is for exporting the first infrared reception signal Detect, pin two ground connection, and pin three meets the second DC voltage VDD.Between the pin two of infrared receiving terminal U4 and pin three, be connected with electric capacity eight C8.
The principle of work of described infrared receiving circuit is: when there is no extraneous infrared signal, infrared receiving terminal U4 is high level at the infrared reception signal of output first Detect of pin one, when receiving extraneous infrared signal, infrared receiving terminal U4 is low level at the first infrared reception signal Detect of pin one output.
Refer to Fig. 7, described CPU treatment circuit comprises a single-chip microcomputer U3, a resistance R 6.The pin one of single-chip microcomputer U3 receives the first infrared reception signal Detect, pin two output the second infrared reception signals also pass through the microphone pin that resistance six R6 connect audio connector J1, pin three meets the second DC voltage VDD, pin four ground connection, pin five receives the first emissioning controling signal Edge_fall, pin six output the second emissioning controling signal PWM.
The principle of work of described CPU treatment circuit is: when single-chip microcomputer U3 detects the first emissioning controling signal Edge_fall, from pin six, directly export the second emissioning controling signal PWM.When single-chip microcomputer U3 detects the first infrared reception signal Detect when effective, by pin two, directly export the second infrared reception signal, then by resistance six R6, be coupled to the microphone pin of audio connector J1, thereby pass to the microphone pin of the audio interface of intelligent electronic device.
These are only the application's preferred embodiment, and be not used in restriction the application.For a person skilled in the art, the application can have various modifications and variations.All within the application's spirit and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in the application's protection domain.
Claims (8)
1. an infrared remote control learning circuit, is characterized in that, comprising:
---power-supply circuit, the audio interface of connection intelligent electronic device, is converted to the first DC voltage by the sine voltage signal of audio interface output, is infrared emission drive circuit power supply;
---booster circuit is the second DC voltage by the first DC voltage lifting, is transmitting trigger pip change-over circuit, infrared receiving circuit, the power supply of CPU treatment circuit;
---infrared emission drive circuit, with the second emissioning controling signal driving infrarede emitting diode of CPU treatment circuit output;
---transmitting trigger pip change-over circuit, is converted to the transmitting trigger pip of the audio interface output of intelligent electronic device the first emissioning controling signal and passes to CPU treatment circuit;
---infrared receiving circuit, receives extraneous infrared signal and exports the first infrared reception signal;
---CPU treatment circuit, the first emissioning controling signal of transmitting trigger pip change-over circuit output is converted to the second emissioning controling signal and passes to infrared emission drive circuit, and the first infrared reception signal of also infrared receiving circuit being exported is converted to the second infrared reception signal and passes to the audio interface of intelligent electronic device.
2. infrared remote control learning circuit according to claim 1, is characterized in that, described power-supply circuit comprises an audio connector, four commutation diodes, four electric capacity, three resistance; This audio connector has L channel, R channel, ground wire and four pins of microphone; All the time export sine voltage signal for one in the two-channel pin of this audio interface, another output transmitting trigger pip; In the L channel pin of this audio connector or R channel pin one is connected to by electric capacity one between the diode one and diode two of series connection, another is connected between the diode three and diode four of series connection by electric capacity two, the ground wire pin ground connection of this audio connector, the microphone pin of this audio connector is by resistance one ground connection; The L channel of this audio connector, R channel pin are also respectively by resistance seven, resistance eight ground connection; The anode of the anode of diode two and diode three is connected and ground connection; The negative electrode of the negative electrode of diode one and diode four is connected and exports the first DC voltage; Electric capacity three and electric capacity four parallel connections, and the negative electrode of a terminating diode four, other end ground connection.
3. infrared remote control learning circuit according to claim 1, is characterized in that, described power-supply circuit comprises an audio connector, two commutation diodes, three electric capacity, three resistance; This audio connector has L channel, R channel, ground wire and four pins of microphone; All the time export sine voltage signal for one in the two-channel pin of this audio interface, another output transmitting trigger pip; All the time the pin of exporting sine voltage signal of this audio connector is connected to by electric capacity one between the diode one and diode two of series connection, the ground wire pin ground connection of this audio connector, and the microphone pin of this audio connector is by resistance one ground connection; The L channel of this audio connector, R channel pin are also respectively by resistance seven, resistance eight ground connection; The plus earth of diode two; The negative electrode of diode one is exported the first DC voltage; Electric capacity three and electric capacity four parallel connections, and the negative electrode of a terminating diode one, other end ground connection;
Or the pin of exporting all the time sine voltage signal of this audio connector is connected to by electric capacity two between the diode three and diode four of series connection, the plus earth of diode three; The negative electrode of diode four is exported the first DC voltage; Electric capacity three and electric capacity four parallel connections, and the negative electrode of a terminating diode four, other end ground connection.
4. infrared remote control learning circuit according to claim 1, is characterized in that, described booster circuit comprises two commutation diodes, two electric capacity; The anode of the first direct current crimping diode five, the pin of exporting all the time sine voltage signal of audio connector is connected between the diode five and diode six of series connection by electric capacity five; The negative electrode of diode six both, by electric capacity six ground connection, was exported again the second DC voltage.
5. infrared remote control learning circuit according to claim 1, is characterized in that, described infrared emission drive circuit comprises two resistance, infrarede emitting diode, npn type bipolar transistor or MOS transistor; The first DC voltage connects the anode of infrarede emitting diode by resistance two, the negative electrode of infrarede emitting diode connects the collector of transistor one; The pwm signal of CPU treatment circuit output connects the base stage of transistor one, the grounded emitter of transistor one by resistance three.
6. infrared remote control learning circuit according to claim 1, is characterized in that, described transmitting trigger pip change-over circuit comprises two resistance, electric capacity, npn type bipolar transistor or MOS transistor; The pin of the output transmitting trigger pip of audio connector is connected to the base stage of transistor two by resistance four; Between the collector and emitter of transistor two, be connected with electric capacity seven; The collector of transistor two also connects the second DC voltage by resistance five; The collector of transistor two is also exported the first emissioning controling signal; The grounded emitter of transistor two.
7. infrared remote control learning circuit according to claim 1, is characterized in that, described infrared receiving circuit comprises an electric capacity, an integrated infrared receiving terminal; The pin one of infrared receiving terminal is for exporting the first infrared reception signal, pin two ground connection, and pin three connects the second DC voltage; Between the pin two of infrared receiving terminal and pin three, be connected with electric capacity eight.
8. infrared remote control learning circuit according to claim 1, is characterized in that, described CPU treatment circuit comprises a single-chip microcomputer, a resistance; The pin one of single-chip microcomputer receives the first infrared reception signal, pin two output the second infrared reception signals also pass through the microphone pin that resistance six connects audio connectors, pin three connects the second DC voltage, pin four ground connection, pin five receives the first emissioning controling signal, pin six output the second emissioning controling signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320645718.7U CN203562094U (en) | 2013-10-18 | 2013-10-18 | Infrared remote control studying circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320645718.7U CN203562094U (en) | 2013-10-18 | 2013-10-18 | Infrared remote control studying circuit |
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| CN203562094U true CN203562094U (en) | 2014-04-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702810A (en) * | 2015-02-13 | 2015-06-10 | 广东美的制冷设备有限公司 | Audio to infrared remote control device, control method and mobile terminal |
| CN105989706A (en) * | 2015-12-24 | 2016-10-05 | 魅族科技（中国）有限公司 | Infrared remote control method, infrared remote control circuit and infrared remote control |
-
2013
- 2013-10-18 CN CN201320645718.7U patent/CN203562094U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702810A (en) * | 2015-02-13 | 2015-06-10 | 广东美的制冷设备有限公司 | Audio to infrared remote control device, control method and mobile terminal |
| CN105989706A (en) * | 2015-12-24 | 2016-10-05 | 魅族科技（中国）有限公司 | Infrared remote control method, infrared remote control circuit and infrared remote control |
| CN105989706B (en) * | 2015-12-24 | 2019-11-01 | 珠海市魅族科技有限公司 | A kind of infrared remote control control method, infrared remote controller and IR remote controller |
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