This circuit allows you to vary the duty cycle without changing the frequency. An interesting application for PWM controls. The circuit is from a Radio Electronics magazine from July 1985.
This interesting circuit, which can be used as an alarm, was found in a 1997 documentation. It...
The figure shows how to implement a No – OR or NOR function with 1 general purpose transistor. The supply...
This circuit was obtained in Linear Technology documentation from 1993. The circuit provides 3.3 V and...