Flip Flop LED light flashing circuit
Flip Flop LED light flashing circuit
The circuit consists of two identical halves and is called a Flip Flop because one half is ON while the other half is OFF. The ON half is keeping the OFF half OFF but it cannot keep it off indefinitely and gradually the OFF half turns ON via the 10k base-bias resistor.
This drives the ON side OFF and the circuit changes state. In other words it flips over. The same events occur in the other half of the cycle and the circuit eventually flops back again.
This sounds very complicated but in reality the circuit is quite simple in operation as one half is exactly the same as the other and there’s only 5 components in each half.