Circuit Diagram

Toy car remote control circuit diagram

Published:2011/4/18 5:04:00 Author:Rebekka | Keyword: Toy car remote control

Toy car remote control transmitter circuit. Toy car remote control receiver circuit. (a) is receive circuit. It contains seven output ABCDEFG. They Control the steering respectively(b); Left and right turn signal(Figure c); Drive motor (Figure d); Musical sound circuit(Figure e); Brake solenoid and driver rear brake light LED5LED6 lights; Before and after the headlight switch (Fig. g); power supply (Figure h).   (View)

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Buick GL8 air flow meter and evaporative emission circuit

Published:2011/4/18 7:19:00 Author:Jessie | Keyword: air flow meter, evaporative emission

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100 in 1 TV multi-function remote control circuit(Compatible with all the co-RM-33C, NT66P13)

Published:2011/4/18 6:49:00 Author:Rebekka | Keyword: TV multi-function remote control

100 in 1 TV multi-function remote control circuit(Compatible with all the co-RM-33C, NT66P13) is shown as above.   (View)

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45 in 1 Multi-function air-conditioning remote control circuit

Published:2011/4/18 6:51:00 Author:Rebekka | Keyword: Multi-function remote control , air-conditioning

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Super-regenerative type radio receiver circuit diagram

Published:2011/4/18 6:50:00 Author:Rebekka | Keyword: Super-regenerative type, Radio receiver

Intermittent oscillation frequency of the circuit is about l20kHz.   (View)

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Coal gas accident alarm circuit diagram

Published:2011/4/18 2:34:00 Author:Rebekka | Keyword: Coal gas accident alarm

The circuit is match with gas stove. When the flame appears, it provides a stable airflow for the main nozzle gas relay. Radiation caused by the intermittent flame flash will produce low frequency signal. The amplified signal will produce pule to charge the capacitor. IR5 will be turned on and drive the alarm by relay. There isn't flame flash or pulse, the condenser discharge and IR5 will be stopped.   (View)

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-9～-l4.5v Collector output regulated voltage power supply circuit

Published:2011/3/22 22:59:00 Author:muriel | Keyword: -9～-l4.5v, Collector , output , regulated voltage power supply

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CMOS Logic probe circuit

Published:2011/3/22 1:54:00 Author:muriel | Keyword: CMOS, Logic probe circuit

This circuit is a tool for the diagnosis of failure to display important state after link to microprocessors. When the TTL input is 1 , LED light; when the input is 0 , LED does not light. When the input from the 1 to 0 or 0 to 1 , the edge of the LED-2 light once. Input end use CMOS inverter buffer 3a, that can prevent the probe influence microprocessor.   (View)

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Naiqi YB-831A rolling massage machines circuit

Published:2011/4/18 9:12:00 Author:Ecco | Keyword: Naiqi , rolling , massage machines

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Circuit of using buzzer instead of figure light

Published:2011/4/13 22:02:00 Author:Nicole | Keyword: buzzer, figure light

If using a motor to watch indicator light, it will not decern easily weather the light is on or off in daytime, but the buzzer circuit can compensate for it. To turn on the ignition switch, the JFET 2N5434 also will be turned on after about 7s delayed time, so in the process of starting car and increasing oil pressure normally, the buzzer will not to ring; then using indicator light to watch oil pressure sensor and motor temperature sensor. This circuit can be fixed in those not being used buzzer plastic casing of bridge house.   (View)

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Modulated photoelectric isolation circuit

Published:2011/4/14 21:40:00 Author:Nicole | Keyword: photoelectric isolation

This circuit is used to modulate FPA103 photoelectric isolator which is produced by Xiantong Company, it is also used to regulate singal from detector, making photoelectric isolator insensitive to the light of fluorescent lamp, and it will not reduce its performance. The VCO of NE567 PLLIC is adjusted to about 1400Hz by R1, C1, 741 operation amplifier changes the PLL⑥ triangular wave into square wave with 50% duty ratio, then to drive photoelectric coupler LED through Q1.   (View)

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Polarity reversal drive circuit

Published:2011/4/6 21:30:00 Author:Nicole | Keyword: Polarity reversal drive

9614 polarity reversal driver is transported to HCPL-2602 Photo coupler receiver through shield wire, twisted-pair or coaxial cable. In receiver input terminal, to connect a Schottky diode, it can impove the data transmission speed greatly. When tPHL(transmission delay time of turning into low output level) and tPLH(transmission delay time of turning into high output level) is closed to equal, there is the maximum data transmission speed.   (View)

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Dimming light circuit with operational amplifier

Published:2011/4/18 9:36:00 Author:Nicole | Keyword: dimming light, operational amplifier

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Dimming light circuit with parameter solid state relay

Published:2011/4/18 9:35:00 Author:Nicole | Keyword: dimming light, solid state relay

The relation between input resistance of 3, 4 foot and 5, 6 foot pressure drop is as below:   (View)

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Touch delay light circuit adopted power switch integrated circuit

Published:2011/4/18 9:29:00 Author:Nicole | Keyword: delay light, power switch

The delay time is determined by the capacity of C2, the figure data is about 25s. If it is needed to delay time, you can increase its capacity. Besides, the touch time also has influence on the circuit delay time.   (View)

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SH-808 festival color lamp with multiple music synchronous phonation control circuit 2

Published:2011/4/18 9:24:00 Author:Nicole | Keyword: festival color lamp, music

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SH-808 festival color lamp with multiple music synchronous phonation control circuit 1

Published:2011/4/18 9:21:00 Author:Nicole | Keyword: festival color lamp, music

The cirucit is as shown. It consists of rhythm pulse generator, light control circuit, music amplifier circuit and AC depressurization rectifier circuit. The core composition of light control circuit is festival color lamp control special integrated circuit.   (View)

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SH-811 festival color lamp with piano music control circuit

Published:2011/4/18 9:14:00 Author:Nicole | Keyword: festival color lamp, piano music

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SH-816 multi-pattern festival color lamp with piano music control circuit

Published:2011/4/18 9:13:00 Author:Nicole | Keyword: festival color lamp, piano music

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SH-816 festival color lamp with piano music automatic transformation control circuit

Published:2011/4/18 9:11:00 Author:Nicole | Keyword: festival color lamp, piano music

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