Tag Archives: lighting

High Voltage Switching for Energy Recovery for Xenon tube

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This is a High Voltage switching device for driving coils and which have big impedance when it is switched off. It can be use in Back-EMF energy recovery tests, Newman coils electronic commutator…..This device is drived by an opto-coupler and can be easily connected with an opto-switch for synchronisation phase… Read more »

Xenon Strobe

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This is a very simple strobe circuit which I have not seen anywhere else. My inspiration came from a strobe circuit that was in a school fire alarm buzzer – the kind that has a built-in strobe light on top. Description: It’s a pretty simple circuit which some of you… Read more »

1.2V Drive 7 High efficiency white LED flashlight

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High efficiency white LEDs have advanced to the point where they can replace glow bulbs and other light sources not only as indicators, but also for illumination. While many of the claims made about the LEDs’ efficiency, light quality, lifetime and economy are mostly exaggeration, the truth is that for… Read more »

Switch-Mode LED Backlight by MAX1698

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White-LED backlights are gaining acceptance because they offer higher reliability and simpler drive circuitry than those based on CCFL and EL technology. As a result, the white-LED backlight is increasingly common in PDAs, cell-phones, digital cameras, and other portable devices. A design in which the display is backlit (or frontlit)… Read more »