Does anyone have any recommendations for a low-power pulse shortening circuit?
i.e. I have an incoming clock pulse and I would like to reduce the duty cycle by a rough amount.
Do you want it to use in welding machine? Pulse welding type?
If not, I guess you just want to change the width of your signal. If this true, then use micro-controllers to reduce the width. And if you need to change just the amplitude, just use a POT.
If not, I guess you just want to change the width of your signal. If this true, then use micro-controllers to reduce the width. And if you need to change just the amplitude, just use a POT.
Yes, if you choose the Farad value (together with the pot value) properly. Together they need to produce a suitable time constant, which will respond within the incoming pulse length.
My schematic shows typical values that will work with 1 kHz.
If your frequency of operation is higher, then reduce the Farad value.
If lower, then increase it.
The potentiometer provides adjustment of the output pulse length. It ranges from zero to about 90 percent of incoming pulse length.