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Remote Control Circuit

Index 5

Multi-functional infrared remote controller 555, MC1558

Published:2011/9/4 20:45:00 Author:TaoXi | Keyword: Multi-functional, infrared, remote controller

The multi-functional infrared remote controller is as shown in the figure. This circuit is composed of the infrared pulse launch circuit and the infrared receiving circuit. The infrared transmitter is as shown in figure (a), it is composed of two multivibrators which use the time-base circuit 555 as the core. The oscillation frequency of the multivibrator which is composed of the IC1(555) and R1, R2, C1 is f=1.44/(R1+2R2)C1, the corresponding frequency of the parameters in the figure is about 3kHz, the signal can be used to drive the carrier wave of the infrared emission diode D1. Another multivibrator is composed of the IC2(555), C5, R7 and the resistor which is connected with the switch K2, it can be used in the keying coding application. The output pulse waveform adds to the pin-4 of IC1 that can be used as the keying modulation signal. (View)

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TC1948P video tape recorder infrared remote control launch circuit

Published:2011/9/4 20:31:00 Author:TaoXi | Keyword: video tape recorder, infrared, remote control, launch circuit

TC1948P video tape recorder infrared remote control launch circuit

The TC1948P is designed as one kind of infrared remote control launch circuit that can be used in the video tape recorder application. The internal circuit is composed of the keyboard input circuit, the oscillator, the timing signal generator, the code signal generator, the decoder, the synchronous/single pulse signal generator and the output signal. The difference between the M50115P, M50115AP, M50115BP and M50115CP is the identification number. Features CMOS technology, the power consumption is low.The power supply voltage operating range is wide, and it can work in low voltage.16-pin dual-row DIP plastic package. Function description This oscillator can be connected with the LC resonant circuit and the ceramic filter to produce the reference signal.The oscillator will stop working when the button is not pressed to reduce the power consumption. (View)

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TC9132P remote control transmission line circuit

Published:2011/9/8 19:53:00 Author:TaoXi | Keyword: remote control, transmission line

TC9132P remote control transmission line circuit

The TC9132P is designed as one kind of remote control transmission line circuit. The internal circuit is composed of the oscillator, the driver, the clock pulse generator, the carrier frequency generator, the output synthesizer, digital coding circuit, key input circuit and the code modulation circuit. Features CMOS large scale integrated circuit.The power consumption is low.The power supply voltage range is wide, the value is 2.2-5.0V.The 22-DIP package.The matching models are TC9133P and TC9134P. Function description It forms the remote control system which has 32 kinds of functions with the TC9133P or TC9134P.It forms the oscillator with the LC circuit or the ceramic resonator. The carrier frequency depends on the oscillation frequency.It supplies the display output. (View)

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TC9012F TV, VCR and CD player infrared remote control launch circuit

Published:2011/9/4 20:32:00 Author:TaoXi | Keyword: TV, VCR, CD player, infrared, remote control, launch circuit

TC9012F TV, VCR and CD player infrared remote control launch circuit

The TC9012F is designed as one kind of infrared remote control launch circuit that can be used in the TV, VCR and CD player applications. The internal circuit is composed of the oscillator, the frequency divider, the timing circuit, the system code latch circuit, the key input circuit, the key scanning output circuit, the output control circuit, the carrier signal generator, the control circuit and the data register. Features It uses the CMOS technology.The power voltage is low, the value is 2-4V.The power consumption is low. The current is lower than 20mA when this deivce is operating; and in the holding state, the current is lower than 1uA.Higher emission efficiency, the duty ratio of the LED is 1.8%.It has the emission display output port.The IC has the oscillation circuit with the clock oscillator.20-pin dual-row DIP plastic package.The matching model is TA8141S. (View)

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YN5049/YN5050 TV, VCR and stereo equipment infrared remote control launch circuit

Published:2011/9/4 20:33:00 Author:TaoXi | Keyword: TV, VCR, stereo equipment, infrared, remote control, launch circuit

YN5049/YN5050 TV, VCR and stereo equipment infrared remote control launch circuit

Features The oscillator has only one input port.The code detection circuit can prevent the interference of other circuits.It has strong noise eliminating ability.The matching model is YN5048. Function description It can be used with the YN5048 to form the multi-channel infrared remote control system. The YN5049 can supply 10 kinds of functions, the YN5049 can supply 18 kinds of functions.It can output the multi-function control by using the multikey pressing-together feature. The YN5049 can output 5 kinds of multi-function controls, the YN5050 can output 6 kinds of multi-function controls.The output signal includes the single pulse signal, the continuous pulse signal, the inverse level signal. (View)

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Double-channel infrared remote control switch (LM567, CD4013)

Published:2011/9/8 19:59:00 Author:Christina | Keyword: Double-channel, infrared, remote control, switch

The double-channel infrared remote control switch which is as shown in the figure changes the channel control signal into the high frequency carrier frequency signal by modulating the carrier frequency signal, and it outputs the signal through the infrared transmitting tube. This kind of control mode is very helpful to resist the interference, it makes the remote control circuit more reliable, the structure of it is as shown in the figure. This circuit is composed of the double-channel infrared transmitter, the infrared receiver modem, the channel selector and the switch controller. The emitter: The receiver: (View)

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DTMF coding multiple-channel infrared remote control switch circuit

Published:2011/9/8 20:01:00 Author:Christina | Keyword: DTMF, coding, multiple-channel, infrared, remote control, switch

DTMF coding multiple-channel infrared remote control switch circuit
The DTMF codec is the abbreviation of the dual-tone multi-frequency codec. The multiple-channel infrared remote control switch circuit which is composed of the DTMF is as shown in the figure. It is composed of the infrared remote control signal emitter, the infrared receiving signal amplifier, the DTMF signal decoder, the 12-channel data decoding distributor and the circuit switch controller. (View)

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The linear matrix CCD driver designed on the base of FPGA

Published:2011/8/31 18:57:00 Author:qqtang | Keyword: linear matrix, CCD driver, FPGA

The linear matrix CCD driver designed on the base of FPGA

CCD(Charge Coupled Devices) characterizes small size, high precision, low power consumption, long lifespan and auto electric scanning,etx, which is widely used in image sensing and non-touching measurement arear. As the the photoelectric features, such as the switching efficiency and SNR, reach the best values only when it is under the proper sequence, then it is outputting stable and reliable signals, therefore, the design of the circuit drive is one of its key problems in application. (View)

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Local area network remote control stepper motor control module

Published:2011/9/7 2:04:00 Author:Lucas | Keyword: Local area network , remote control , stepper motor, control module

Local area network remote control stepper motor control module
In computer integrated manufacturing (CIM) or industrial automation (IA) area, many long-distance control devices have difficulty in data transmission, and its anti-interference performance is poor,when the multi-audience-bit machine is networking, the software needs to address. For this, we have developed stepper motor control module which based on local area network (Ethernet). The network controlling stepper motor control module uses TCP / IP protocol and controlling host (PC) to communicate, and the operation is stable and reliable. Each stepper motor is assigned an unique IP address, and it can do the transmission distinguish for controlling data by IP address. (View)

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Remote control coding chip RT1517

Published:2011/9/7 4:26:00 Author:Vicky | Keyword: Remote control coding chip, remote control IC

Remote control coding chip RT1517
It’s a learning-code coding chip RT1517 and decoding chip for receiving Security 1,6 million group coder Standard 40 remote control units for learning and memorizing Using learning-code technology Good fault-tolerant ability Operation 2.0 – 5.5 operating voltage Low power dissipation Learn-LED pin learning output indication Auto modulation for Baud rate Other features Few exterior components Being used as individual decoder Easy to produce and no need of coding in PCB Typical application Auto multimedia central control system Auto/Moto Annunciator House security Auto electronic lock and garage gate Identity resolution Anti-theft system (View)

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Remote control doorbell circuit diagram

Published:2011/9/5 3:31:00 Author:Lucas | Keyword: Remote control doorbell

Remote control doorbell circuit diagram
The self-excited multivibrator is composed of the discrete components, and the oscillation frequency is mainly decided by L2, C3. The transmitting frequency is 30 ~ 40MHz gotten by the components shown as the figure. Usually, the circuit is disconnected, pressing the AN will make power on, and the circuit will emit oscillation signal. Receiver circuit: D1, D2 form the doubler circuit, which can double and rectify the signal sensed by L4, and the output signal can make BG3 saturated conduction, then the conduction will generate the negative pulse to set the time base circuit 555, and its pin 3 outputs high level to trigger the music integrated circuit IC2. BG4 is used as audio power amplifier. R3, C9 can adjust the delay time of 555. (View)

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Delay pulling in relay circuit

Published:2011/8/29 2:26:00 Author:Jessie | Keyword: Delay pulling in , relay

If you want to get the delay circuit with long time and it iseasy to adjust,you should use the transistor to control relay current, and access RC on the base circuit, and the circuit is shown as the chart. If the supply voltage, capacitor, current amplification coefficient and the required pull-in power are known, you should select the appropriate relay coil resistance and voltage value in order to delay as long as possible. This time can be determined by the constant value of time. (View)

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Relay delay pulling in circuit

Published:2011/8/29 1:45:00 Author:Jessie | Keyword: Relay , delay pulling in

Relay delay pulling in circuit is composedof theplane transistors BC107C, BC107B and some other external components. Since transistors have high current amplification coefficient and small collector current,the delay can reach 60s. If it requires lower, it should use the lower capacitors. (View)

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Electronic relay with glow numerating tube

Published:2011/8/29 1:50:00 Author:Jessie | Keyword: Electronic relay , glow numerating tube

Electronic relay with glow numerating tube
In zero negative logic system,it usesthe circuit shown as Figure a). In thezero positivelogic system is, it uses the circuit shownin Figure b. (View)

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The print timing exposer circuit

Published:2011/8/23 22:06:00 Author:Borg | Keyword: timing exposer

The print timing exposer circuit
When S1 is pressed once, the low LEV triggers the single stabilizer, YF555 3-pin is outputting a high LEV, the triode V is conducting, the relay is power-on, the contactor is closed, the exposing light H is glowing and the exposure is done. At the moment, LED1 is put out. LED2 is glowing, which means the exposure is going on, after the time of T, the single stable trigger is reset, the 3-pin of the time-base circuit is turned into LEV again, and an exposure is done. By pressing key S1, the above work is repeating once. (View)