Circuit Diagram

Zero-symmetric bi-directional pulse generator

Published:2011/4/8 3:02:00 Author:Ecco | Keyword: Zero-symmetric , bi-directional , pulse generator

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Gate pulse generator (555)

Published:2011/4/8 4:46:00 Author:Ecco | Keyword: Gate pulse generator , 555

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Modulation optical receiving circuit

Published:2011/4/8 0:59:00 Author:Nicole | Keyword: optical receiving

Q1, Q2 form two-stage FET amplifier, it is used in Si solar cells output singal after scale up chopper or optical modulation. About 1000Hz modulation 5lm/ft2(lft=30.48cm)light beam, when R is altered to the maximum gain, the circuit will produce 1V effective value voltage in output terminal. This circuit can be used to optical communication and alarm system.   (View)

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Wideband VCO composed of CD4007

Published:2011/4/8 2:59:00 Author:Ecco | Keyword: Wideband , VCO

The VCO is shown as the chart. The voltage-controlled signal Vi provides a DC voltage with the changing of frequency and phase to the varactor VDl ~ VD3 and from the low-pass filter Rl ~ R3. The voltage is decided by the VCO (voltage controlled oscillator) output frequency of the inductor L, capacitor C3, C4 and varactor diode VDl ~ VD3 and IC (CD4007).   (View)

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The principle diagram of radio-controlled car(the principle diagram of emitter)

Published:2011/4/8 2:18:00 Author:Ecco | Keyword: principle diagram, radio-controlled car, emitter

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fm emitter circuit diagram

Published:2011/4/8 2:22:00 Author:Ecco | Keyword: fm , emitter

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Wideband VCO composed of CD4046

Published:2011/4/8 2:52:00 Author:Ecco | Keyword: Wideband , VCO

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The voltage-controlled oscillator(NE566V) with controlled wide range

Published:2011/4/8 2:50:00 Author:Ecco | Keyword: voltage-controlled oscillator, controlled wide range

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The voltage-controlled oscillator circuit(555) with logarithmic characteristic

Published:2011/4/8 2:47:00 Author:Ecco | Keyword: voltage-controlled oscillator , circuit logarithmic characteristic , 555

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Exponential voltage-controlled oscillator(555)

Published:2011/4/8 2:46:00 Author:Ecco | Keyword: Exponential, voltage-controlled oscillator, 555

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Infrared volume remote control circuit diagram

Published:2011/4/8 1:57:00 Author:Rebekka | Keyword: Infrared volume remote control

Dual-channel infrared transmitter:   (View)

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Infrared remote control color lamp circuit diagram

Published:2011/4/8 1:54:00 Author:Rebekka | Keyword: Infrared remote control color lamp

Figure (a) is six-way infrared remote control transmitter. Figure (B) is infrared receiver demodulation, channel decoding circuit, lighting drive circuit.   (View)

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CD4013 and CD4514 pin permutation circuit diagram

Published:2011/4/8 2:53:00 Author:Rebekka | Keyword: pin permutation

CD4514 is a four-sixteen line decoder.CD4013 is a bistable circuits.   (View)

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Infrared detection language alarm circuit diagram

Published:2011/4/8 1:51:00 Author:Rebekka | Keyword: Infrared detection language alarm

Infrared transmitter circuit is shown as below:   (View)

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Infrared remote control multiway switch controllor circuit diagram

Published:2011/4/8 1:49:00 Author:Rebekka | Keyword: Infrared remote control, multiway switch controllor

The circuit is composed of infrared receiver demodulation circuit and channel decoding circuit. μPC1373 is integrated infrared signal demodulation circuit.   (View)

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Infrared remote control multi-relay control switch circuit diagram

Published:2011/4/8 1:44:00 Author:Rebekka | Keyword: multi-relay control switch , Infrared remote control

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Infrared remote control voltage circuit diagram

Published:2011/4/8 1:42:00 Author:Rebekka | Keyword: Infrared remote control voltage

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IR remote control dimmer circuit diagram

Published:2011/4/8 1:41:00 Author:Rebekka | Keyword: IR remote control dimmer

Infrared remote control transmitter diagram: Infrared remote control receiver power amplification and dimming control circuit. IC1 in IR emitter uses NE555, LM555 etc., IC2 can use μA741 or LM324. IC3 can use LS7232, can also be uses CS7232, SM7232, etc.   (View)

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Infrared remote control fan power supply outlet circuit diagram

Published:2011/4/8 1:36:00 Author:Rebekka | Keyword: Infrared remote control fan, power supply outlet

The circuit consists of infrared receiver demodulation circuit, speed control circuit, SCR phase trigger circuit and natural air control circuit.   (View)

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Frequency modulation radio reception main frame circuit diagram

Published:2011/4/8 2:05:00 Author:Rebekka | Keyword: Frequency modulation , radio reception main frame

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