Circuit Diagram

Start circuit composed of relay

Published:2011/3/30 1:46:00 Author:may | Keyword: Start

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Soft-start circuit adopts transistor

Published:2011/3/30 1:47:00 Author:may | Keyword: Soft-start

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Interface circuit of BCL to LED

Published:2011/3/22 1:22:00 Author:muriel | Keyword: Interface circuit , BCL to LED

PNP germanium transistors used as a interface of an emitter coupled logic drive LED. The same interface can be used to drive 7-segment Nixie tubeor other LED arrays with common cathode structure, such as Fairchild's FND, 0 or Mon santo company's MAN3. Light-emitting diodes in the figure can switch to optical isolators.   (View)

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CNY44 analog isolating circuit

Published:2011/4/2 3:08:00 Author:may | Keyword: analog isolating

We can use this circuit when sending analog signal between equipments which have differ ground electric potential. The 3dB bandwidth of this circuit is between 6Hz~80kHz. Between 100Hz and 20kHz, the total harmonic distortion is less than 1.5% when +8V (pak-peak) output level.   (View)

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2008 Guangzhou Toyota rayis engine control system circuit

Published:2011/3/21 2:56:00 Author:may | Keyword: engine control system

2008 Guangzhou Toyota rayis engine control system circuit is show in the diagram:   (View)

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SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(six)

Published:2011/4/17 22:04:00 Author:muriel | Keyword: SHANGHAI GM BUICK（Excelle）, saloon car, engine

Figure SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(six)   (View)

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SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(seven)

Published:2011/4/17 22:05:00 Author:muriel | Keyword: SHANGHAI GM BUICK（Excelle）, saloon car, engine

Figure SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(seven)   (View)

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SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(eight)

Published:2011/4/17 22:06:00 Author:muriel | Keyword: SHANGHAI GM BUICK（Excelle）, saloon car, engine

Figure SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(eight)   (View)

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Cadillac forced locks open circuit

Published:2011/4/17 22:23:00 Author:Jessie | Keyword: forced locks open

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SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(nine)

Published:2011/4/17 22:07:00 Author:muriel | Keyword: SHANGHAI GM BUICK（Excelle), saloon car, engine

Figure SHANGHAI GM BUICK（Excelle）saloon car engine circuit diagram(nine)   (View)

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SHANGHAI GM BUICK（Excelle）saloon car lock braking system circuit diagram(one)

Published:2011/4/17 22:10:00 Author:muriel | Keyword: SHANGHAI GM BUICK（Excelle）, saloon car, lock braking system

Figure SHANGHAI GM BUICK（Excelle）saloon car lock braking system circuit diagram(one)   (View)

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SHANGHAI GM BUICK（Excelle）saloon car lock braking system circuit diagram(two)

Published:2011/4/17 22:10:00 Author:muriel | Keyword: SHANGHAI GM BUICK（Excelle）, saloon car , lock braking system

Figure SHANGHAI GM BUICK（Excelle）saloon car lock braking system circuit diagram(two)   (View)

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Quack circuit of electronic lark

Published:2011/4/17 23:06:00 Author:Ecco | Keyword: Quack circuit , electronic lark

The quack circuit of electronic lark can emit fluctuated, variable tone birdcall in different lights, its sound is variable. The circuit is shown in the figure.   (View)

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Precise timing circuit composed of 555

Published:2011/4/17 23:00:00 Author:Ecco | Keyword: Precise timing circuit , 555

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Long delay circuit composed of 555

Published:2011/4/17 22:59:00 Author:Ecco | Keyword: Long delay circuit , 555

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Phase shifting oscillating circuit examples circuit diagram

Published:2011/4/17 20:14:00 Author:Jessie | Keyword: Phase shifting oscillating, examples

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Log photometer circuit

Published:2011/4/13 20:53:00 Author:Nicole | Keyword: log photometer

This circuit can be used to test light intensity of air conditioning equipments. The light intensity is changed into voltage(the maximum voltage is 400mV when it is 100000). Photosensor adopts silion photodiode BPX91. This diode is in no load operation, and it will produce output voltage, the voltage has a logarithm relation with light intensity. Transistor BCY58/X amplifys photo-sensitive current, collector-emitter diode can compensate the temperature factor of photodiode. TAA761 and Potentiometer Rp2 makes the light intensity have a function relation with output voltage. The main technical parameters: working voltage: ±15V; consumption current: about 15mA; output voltage(E=100000lx): 0~600mV; the minumim light intensity withtout filter(adopts incandescent lamp): ≈1.5lx; the minumim light intensity with filter: ≈15lx.   (View)

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Testing circuit of moving objects along production line conveyer belt

Published:2011/4/14 21:10:00 Author:Nicole | Keyword: moving object, production line, conveyer belt

It is a typical industry application circuit, it can test the small components in conveyer belt reliably and fast. Because of the distance, and it needs long-term reliability, so LED works with pulse, it needs fast response so we should use phototransistor detector, high-low impedance power supply will provide this detector with bias. Pulse working adopts cheap plastic obstruction model. Program control unijunction transistor oscillator is the cheapest pulse generator, it is used to inspire governor's and coupler's LED. A common emitter input amplifier supply low impedance to governor phototransistor. Three transistors play a role of amplifying. Amplifier output is tested by PC1, when governor light load is not cut off, PC1 output is negative. Two transistors buffer amplifier then it produces delay output, to supply to 5V logic circuit.   (View)

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The power supply circuit diagram of 89、PWB-1362 six models color displays

Published:2011/4/17 21:48:00 Author:Ecco | Keyword: power supply , six models , color display

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FM waveform generator

Published:2011/4/17 22:14:00 Author:Ecco | Keyword: FM , waveform generator

The circuit shown in Figure is the FM waveform generator which can generate 220kHz FM waveform. The internal regulator of CD40468 provides a stable supply voltage for the operational amplifier CA3140, the rated voltageis 5.4V, R5is the current limiting resistor forregulator.   (View)

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