GARAGE_STOP_LIGHT

Published:2009/7/3 3:10:00 Author:May | From:SeekIC

Capacitor C1 is permanently connected across the 3-volt supply through 10 megohm resistor R1. The capacitor charges (relatively slowly) to 3 volts. The instant switch SW1 is closed, it connects the charged capacitor (C1) in series with C2 and R2. Capacitor C2 starts to charge, placing a positive-going voltage on the gate of the SCR and causing it to turn on. The two parallel-connected self-flashing bulbs I1 and I2 turn on. They flash and turn off the SCR and the circuit is off the switch and C1 can recharge.



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