Circuit Diagram

Electronic Dice Circuits

Published:2012/12/10 0:53:00 Author:muriel | Keyword: Electronic Dice Circuits

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Colour (Sound) Organ

Published:2012/12/10 0:52:00 Author:muriel | Keyword: Colour (Sound) Organ

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Black Light

Published:2012/12/10 0:51:00 Author:muriel | Keyword: Black Light

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Adjustable Strobe Light

Published:2012/12/10 0:51:00 Author:muriel | Keyword: Adjustable, Strobe Light

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40W Fluorescent Lamp Inverter

Published:2012/12/10 0:50:00 Author:muriel | Keyword: 40W , Fluorescent Lamp, Inverter

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3 Channel Spectrum Analyzers

Published:2012/12/10 0:49:00 Author:muriel | Keyword: 3 Channel, Spectrum Analyzers

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12VDC Fluorescent Lamp Driver

Published:2012/12/10 0:48:00 Author:muriel | Keyword: 12VDC , Fluorescent Lamp Driver

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Simple Parallel (Printer) Port Interface

Published:2012/12/10 0:47:00 Author:muriel | Keyword: Simple , Parallel (Printer) Port, Interface

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Computer Controlled Frequency Counter/Logic Probe

Published:2012/12/10 0:47:00 Author:muriel | Keyword: Computer Controlled , Frequency Counter/Logic Probe

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Automatic Headlight Brightness Switchs

Published:2012/12/10 0:46:00 Author:muriel | Keyword: Automatic , Headlight , Brightness Switchs

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Car Alarm Arming Horn Beep Canceller

Published:2012/12/10 0:45:00 Author:muriel | Keyword: Car Alarm Arming, Horn Beep Canceller

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Wireless Auto Tachometer

Published:2012/12/10 0:44:00 Author:muriel | Keyword: Wireless, Auto Tachometer

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EMF Field Intensity Meter

Published:2012/12/10 0:41:00 Author:muriel | Keyword: EMF, Field Intensity Meter

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Three Frequency Crystal Marker

Published:2012/12/10 0:40:00 Author:muriel | Keyword: Three , Frequency Crystal Marker

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Phasing Exciter for 75 Meter SSB

Published:2012/12/10 0:40:00 Author:muriel | Keyword: Phasing Exciter, 75 Meter SSB

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200MHz broadband amplifier circuit diagram with low noise

Published:2012/12/10 0:12:00 Author:Ecco | Keyword: 200MHz, broadband amplifier , low noise

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DC motor servo control circuit diagram

Published:2012/12/10 0:11:00 Author:Ecco | Keyword: DC motor , servo control

In the circuit, when E, O are input DC voltage, the motor will be moved to a position corresponding with the voltage. The potentiometer connected to the same coaxially of motor is used as position feedback. When the given voltage is equal to 1k potentiometer wiper contact voltage, the differential amplifier output is zero, so the motor is stationary; Otherwise, the motor will be transferred or reversal according to the size of the signal.   (View)

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Digital Responder timing design circuit

Published:2012/12/10 0:29:00 Author:Ecco | Keyword: Digital Responder , timing

According to the difficulty degree of the grab answer, the host will set the time to answer the question, and the counter is set by preset by preset time circuit, and the counter clock pulse is provided by the second pulse circuit. The preset time circuit is designed by decimal synchronization addition and subtraction counter 74LS192 circuit, and the specific circuit is shown as the figure.   (View)

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Optical isolation device transmission linearity improving circuit diagram

Published:2012/12/10 0:21:00 Author:Ecco | Keyword: Optical isolation , transmission linearity, improving

It uses negative feedback techniquesto greatly improve the transmission photocoupler linearity. In figure (a), D1 is in the feedback path, the current flowing D1 has the linear relationship with Vi. The disadvantage of this circuit is not taken into account the non-linear relationship between the current transfer ratio of optocoupler devices and operating current. Therefore, the deviced must be carefully selected.   (View)

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Microcomputer data acquisition system circuit diagram

Published:2012/12/10 0:15:00 Author:Ecco | Keyword: Microcomputer, data acquisition system

Microcomputer data acquisition system composed of AD570, AD1408 and microprocessor CPU8155 circuit is shown as the figure. The measuring circuit has eight channels, each channel has sequential measurements, the scanning of each channel does not exceed 50μs, the system logic levels use TTL, binary code, data transmission way.   (View)

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