Trick of White LED. Circuit Clinic 6


WHITE-LED

Introduction of White LED created a revolution in electronics field to replace the Fluorescent lamps in lighting systems. High power White LEDs are now widely used to make Ceiling lamps, Flood lights, Vehicle lamps, surgical instruments, Projectors etc. When compared to ordinary White LED, the high power LED consumes around 200-300 milli ampere and mounted on heat sink for heat dissipation. Majority of high power White LEDs are flat chips that will be easily destroyed if the voltage and current exceeds. So LED driver circuit is used for the  stable operation of the LED. The theory and working of LED is given in the previous post, so only the relevant facts about White LED is given here.
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Extra Bright LED Lamp


This simple 1 watt LED lamp can give light equal to 11 watt CFL. It is directly powered from AC using capacitor power supply. The light from this 30 LED lamp can very well illuminate the room and is suitable for reading purpose also.

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