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Remote Control Circuit

Index 23

The auto power limiting circuit of PNP

Published:2011/6/2 3:16:00 Author:Seven | Keyword: power limiting circuit, PNP

The auto power limiting circuit of PNP
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TC9012F--the remote control emitter integrated circuit

Published:2011/6/7 10:56:00 Author:qqtang | Keyword: remote control, integrated circuit

TC9012F--the remote control emitter integrated circuit

TC9012F is a remote control emitter integrated circuit produced by Toshiba, which is widely used in remote emitters of air-conditioners, TV sets, stereo equipment, disc players, etc.1.functions featuresTC9012F contains the key pulse generating circuit, key order encoding circuit, clock oscillating circuit, display drive circuit, customer number setting selector circuit, buffer amplifier circuit, test circuit and other additional function circuits.2.pin functions and dataTC9012F is in 20-pin dual line package. (View)

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TC9028AF-023--the integrated circuit of the remote emitter

Published:2011/6/7 1:43:00 Author:qqtang | Keyword: integrated circuit, remote emitter

TC9028AF-023--the integrated circuit of the remote emitter

TC9028AF-023 is the integrated circuit of the remote emitter produced by Toshiba, which is widely used in the remote control system of large screen color TV.1.function featuresTC9028AF-023 contains clock oscillator circuit, reset circuit, key scanning encode circuit and other additional circuit.2.pin functions and dataTC9028AF-023 is in 20-pin dual line plastic package, whose pin functions and data are listed in Table 1.Notes:in the 2-pin and 3-pin of TC9028AF-023, the oscillator circuit and the external pottery resonator form a clock oscillator circuit. (View)

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General infrared remote control switch

Published:2011/6/1 20:48:00 Author:Christina | Keyword: General, infrared, remote control

General infrared remote control switch
Working principle: the infrared remote control switch circuit is as shown in the figure. It is composed of the infrared receiving module, the triode VQ1, the D flip-flop, the driving triode VQ3, the relay, the relay working status indicator LED, the ZD1 voltage-regulator diode and the triode VQ2.etc. The infrared receiving module of the circuit detects the remote launch 37.9kHz negative pulse sequence, there negative pulses change into the positive pulses by VQ1. Then these positive pulses change into the single pulses by the R4, VD1, R5 and C2 network. The positive pulses of the VQ1 collecting electrode charge the C2 through R4 and VD1. The charging time constant (R4 X C2) is about 1.25ms. (View)

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Optical electronic potentiometer circuit

Published:2011/5/20 5:36:00 Author:chopper | Keyword: Optical electronic, potentiometer

Optical electronic potentiometer circuit
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TV remote controller 02

Published:2011/5/19 8:14:00 Author:TaoXi | Keyword: TV, remote controller

TV remote controller 02 (View)

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TV remote controller 10

Published:2011/5/19 8:11:00 Author:TaoXi | Keyword: TV, remote controller

TV remote controller 10 (View)

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TV remote controller 11

Published:2011/5/19 8:11:00 Author:TaoXi | Keyword: TV, remote controller

TV remote controller 11 (View)

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Roll-pattern type wireless remote control circuits TH150/TH150A/TH150B

Published:2011/5/12 3:17:00 Author:TaoXi | Keyword: Roll-pattern, wireless remote control

The internal structure of the roll-pattern type wireless remote control circuit is very complex, the coding method is also very special, but the usage of this circuit is the same as the digital coding circuit, even more simple. The radio control circuit which is composed of the rolling code decoding circuits TH150/TH151A/TH151B. The radio transmission circuit (which is composed of the rolling code circuit, the TH150 and the transistor carrier frequency oscillator): The super-regenerative wireless remote control receiver circuit (which is composed of the TH151A/B rolling decoding circuit): (View)

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Remote control transmitter circuit composed of the TX4915

Published:2011/5/12 1:05:00 Author:TaoXi | Keyword: Remote control transmitter

Remote control transmitter circuit is composed of the TX4915. (View)

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Infrared remote control music socket circuit 2 PH303A

Published:2011/5/12 6:50:00 Author:TaoXi | Keyword: Infrared remote control, music socket circuit

The PH303A×2 infrared pulse transmitter circuit is as shown, by adjusting the RP1 you can make the oscillation frequency to12kHz. Infrared remote control receiver circuit: (View)

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Temperature adjustment quantity resistance-frequency converter circuit

Published:2011/5/20 7:11:00 Author:TaoXi | Keyword: Temperature adjustment, quantity, resistance, frequency, converter circuit

Temperature adjustment quantity resistance-frequency converter circuit (View)

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TV remote controller 01

Published:2011/5/19 8:15:00 Author:TaoXi | Keyword: TV, remote controller

TV remote controller 01 (View)

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The temperature test circuit of thermistors

Published:2011/5/19 23:59:00 Author:Borg | Keyword: test circuit, thermistors

The temperature test circuit of thermistors

The figure is a temperature test circuit with thermistors. In the circuit, thermistors are used as the temperature sensor RT, the testing temperature is divided into 9 levels. By using comparators of Al一A8, the output high-low LEV represents the tested temperature. The relationships between LEV output by U.I-U.8 and temperature are listed in the table. (View)