Circuit Diagram

The frequency-modulated signal generator composed of CD4046

Published:2011/4/13 4:27:00 Author:Ecco | Keyword: frequency-modulated signal, generator

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1Hz Clock signal source circuit(CD4060、CD4027)

Published:2011/4/13 4:25:00 Author:Ecco | Keyword: 1Hz , Clock signal source

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Optical amplification circuit used on CNC cutting machine

Published:2011/4/12 3:03:00 Author:Rebekka | Keyword: CNC cutting machine, Optical amplification

Photoelectric conversion is composed of photosensitive diode and BG1. Schmitt trigger is composed of BG2 and G3. BG4 is inverter. BG1 base potential rises at illumination. GB1 stops, BG2 works, BG2 stops, BG4 works and outputs positive signal.   (View)

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Fancy lantern circuit diagram

Published:2011/4/12 21:33:00 Author:Rebekka | Keyword: fancy lantern

The circuit is 3-way fancy lantern circuit. It uses frequency division effect to divide the trigger triac audio signals into 3 frequency, high, medium and low. They are used for triggering SCR1，SCR2，SCR33 controlled silicon to controll blue, green, red 3-way lights. The 3 colors lights changes with the music melody beautifully.   (View)

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Composed of trigger and switch tube motor automatic speed governor circuit diagram

Published:2011/4/12 2:52:00 Author:Rebekka | Keyword: trigger and switch tube , motor automatic governor

Motor automatic speed governor circuit is composed of 555 trigger and a switch. The sample circuit is composed of R7 and motor in series. When the operation runs within the specified speed, sample voltage VA<1/3VDD, 555 resets, VT1 is conducted, motor runs with power; When the speed overrun, VA>1/3VDD, the connection of R1 makes 555 reset and VT1 stop, the motor power-off, inertial rotation. When VA<1/3VDD, it makes 555 resets again, VT1 will be conducted and the motor works. It controlls the speed of motor all day long. RP1 is used for adjusting the control trigger level.   (View)

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PT2262IR application circuit

Published:2011/4/13 3:59:00 Author:Rebekka | Keyword: application circuit

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PT2262IR parameter list

Published:2011/4/13 3:58:00 Author:Rebekka | Keyword: parameter list

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PT2262-IR／2272 pinout and function circuit diagram

Published:2011/4/13 3:42:00 Author:Rebekka | Keyword: pinout and function

PT2262-IR／2272 pinout and function circuit diagram is shown as above.   (View)

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PT2272 application circuit diagram

Published:2011/4/13 3:41:00 Author:Rebekka | Keyword: application circuit

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MT8870 internal circuit and pinout

Published:2011/4/13 3:40:00 Author:Rebekka | Keyword: internal circuit and pinout

MT8870 is a DTMF decoder IC.   (View)

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MK5087 pinout function table

Published:2011/4/13 3:39:00 Author:Rebekka | Keyword: pinout function

MK5087 is a DTMF encoder IC.DTMF code is a multi-tone multi-frequency coded shorthand.   (View)

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MK5087 internal circuit and pinout

Published:2011/4/13 3:25:00 Author:Rebekka | Keyword: internal circuit and pinout

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MAX2606FM Wireless transmitter circuit diagram

Published:2011/4/13 3:13:00 Author:Rebekka | Keyword: Wireless transmitter circuit

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Composed of LC219/220A toy cars radio remote control transmitter and receiver application circuit diagram

Published:2011/4/13 3:12:00 Author:Rebekka | Keyword: remote control transmitter and receiver , application circuit

Composed of LC219/220A toy cars radio remote control transmitter and receiver application circuit diagram is shown as above.   (View)

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LA4225A audio power amplifier circuit diagram

Published:2011/4/13 4:01:00 Author:Rebekka | Keyword: audio amplifier

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Composed of T630／T631 transmitting and receiving circuit diagram

Published:2011/4/13 2:58:00 Author:Rebekka | Keyword: Transmitting and receiving circuit

MC145026 integrated circuit is a digital code;MC145027 digital decoding IC.   (View)

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TV remote control circuit 31

Published:2011/4/13 4:11:00 Author:Rebekka | Keyword: TV remote control circuit

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TV remote control circuit 30

Published:2011/4/13 4:11:00 Author:Rebekka | Keyword: TV remote control circuit

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TV remote control circuit 33

Published:2011/4/13 4:10:00 Author:Rebekka | Keyword: TV remote control circuit

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TV remote control circuit 32

Published:2011/4/13 4:10:00 Author:Rebekka | Keyword: TV remote control circuit

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