This narrow pulse generator is suggested by Texas Instruments using a Diac. The space mark ratio obtained in this circuit is 10% and the peak current in the emitter diode is 2 amps. The duration of the pulse produced is in the order of 2 microseconds. It is recommended to mount the emitter diode on a heatsink. The capacitor value, which determines the peak current, emission frequency can be changed according to the project you have in mind.
