Wednesday, September 24, 2014

Emergency lighting using white LEDs Circuit Diagram

This  Emergency lighting using white LEDs Circuit Diagram should be assembled only by experienced people and it is advisable to use a protection network, which can be a light bulb in series. For anyone who is thinking of making a system of emergency lighting and simple, this circuit is a cheap and functional output. The circuit is basically composed of a source AC / DC without a transformer, a charger, a system of automatic switching using a diode and a diode switch to change the brightness.

 Emergency lighting using white LEDs Circuit Diagram

 Emergency lighting using white LEDs Circuit Diagram




List of Components

R1 = 1M, ¼ Watt, 5%
R2 = 10K, ¼ Watt, 5%
R3 = 10 Ohms 1Watt
All resistors are LED = 22 Ohms, ¼ Watt
C1 = 205/400V, PPC
C2 = 100uF, 25V
Z1 = 9 V, 1 WATT
T1 = BD 140
All diodes = 1N4007
BATTERY = 6 volts 4 AH
LEDS = WHITE, HIGH EFFICIENCY, 5mm

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