This is circuit for pulse timer. This is a simple form of the circuit. This circuit is based on 555 timer IC. This is the figure of the circuit.
The operation of the circuit is IC connected as mono-stable multi vibrator. Input pulses are applied to the base transistor. It will conducting the transistor with IC. After those, IC will entry the timing cycle using set the R1xC1.
The operation of the circuit is IC connected as mono-stable multi vibrator. Input pulses are applied to the base transistor. It will conducting the transistor with IC. After those, IC will entry the timing cycle using set the R1xC1.
This circuit has a fault. If the 1M is fully rotated, the transistor on pin 7 will short to 0v rail an damage the pot.
ReplyDeleteThe pin 7 had no transistor.
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