Long delay Timer

Published:2012/12/23 21:09:00 Author:muriel | Keyword: Long delay, Timer

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Electronic Candle Blow Out

Published:2012/12/23 21:06:00 Author:muriel | Keyword: Electronic Candle, Blow Out

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One second Audible Clock

Published:2012/12/23 21:06:00 Author:muriel | Keyword: One second , Audible Clock

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Brightness Control for small Lamps

Published:2012/12/23 20:55:00 Author:muriel | Keyword: Brightness Control , small Lamps

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Magnetic-Radiation Remote-Control

Published:2012/12/21 21:44:00 Author:muriel | Keyword: Magnetic-Radiation, Remote-Control

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Jogging Timer

Published:2012/12/21 21:42:00 Author:muriel | Keyword: Jogging Timer

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Personal Alarm

Published:2012/12/21 21:39:00 Author:muriel | Keyword: Personal Alarm

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Tan Timer

Published:2012/12/21 21:32:00 Author:muriel | Keyword: Tan Timer

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Headlights Timer

Published:2012/12/21 21:22:00 Author:muriel | Keyword: Headlights Timer

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Car Subwoofer Driver

Published:2012/12/20 21:11:00 Author:muriel | Keyword: Car Subwoofer Driver

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Telephone call Voice Changer

Published:2012/12/20 21:01:00 Author:muriel | Keyword: Telephone call , Voice Changer

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Amplifier Timer

Published:2012/12/20 20:58:00 Author:muriel | Keyword: Amplifier Timer

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Metal halide electronic ballast constant power control circuit diagram

Published:2012/12/20 2:15:00 Author:Ecco | Keyword: Metal halide, electronic ballast, constant power, control

The circuit can increase the system power factor λ to the number higher than 0.99, and it can effectively suppress the waveform distortion of the input supply current iin to meet requirements of GB15144 with the distortion index being lower than L level, and it can ensure that the HID lamp current crest factor to be less than 1 .7.   (View)

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Tone Control Module circuit diagram

Published:2012/12/19 21:37:00 Author:muriel | Keyword: Tone Control Module

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Logic Monitors 2

Published:2012/12/16 21:06:00 Author:muriel | Keyword: Logic Monitors

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Logic Monitors

Published:2012/12/16 21:05:00 Author:muriel | Keyword: Logic Monitors

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Democratic current control circuit diagram

Published:2012/12/14 0:35:00 Author:Ecco | Keyword: Democratic current control

UC3907 load share controller integrated circuit chip produced by Unitrode uses democracy flowing method and the output voltage of adjustment power supply module to realize load share between parallel modules. UC3907 can determine the maximum output current according to module current monitor, load share bus voltage, then it specifies its main module, while the remaining modules are considered to be slave modules.   (View)

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Digital circuit sound and light control stairs delay switch circuit ( 1 )

Published:2012/12/13 0:43:00 Author:Ecco | Keyword: Digital circuit, sound and light, control , stairs delay switch

It has all the characteristics of the discrete components circuit, it also has high delay accuracy, high operational reliability and low the discrete nature performance between the various finished products, and therefore very suitable for factory mass production. The circuit has two characteristics: Firstly, the lamp operating time is the soft-start and half-wave AC after being lit, which can greatly extend the service life of the lamp; secondly, lamp lighting time is determined by the time constant of R10 and C5.   (View)

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Timer alarm circuit using NE555

Published:2012/12/12 2:52:00 Author:Ecco | Keyword: Timer alarm

Timer alarm circuit using NE555 is shown as the figure.   (View)

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PWM inverter over-current protection circuit diagram

Published:2012/12/12 2:51:00 Author:Ecco | Keyword: PWM inverter , over-current protection

It can prevent IGBT or MOSFET output stage from being damaged by large current flowing. The maximum current is 23A when the motor is overcurrent, and the overcurrent needs 3μs flowing to protection circuit.   (View)

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