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Flashing circuit with astable trigger

2017-02-03 03:55  
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Flashing circuit with astable trigger
Double time base generator circuit can be composed of astable trigger, the load can be light or relay coil. The on/off time depend on the capacitance and base resistance. One of two collector resistances can be replaced by light, then to form the light flashing circuit. The time of light on/ off is decided by R, C, such as C=50μF, R=2.7KΩ, then the light time is about 0.3s, the off time is about 1s.