What Pulse Transformer needed to drive MCR100-6 thyristor for AC/DC converter

Thread Starter


Joined Jun 11, 2008
any pulse transformer part no to recommend ?

I know nothing about pulse transformer.

Below is my circuit

I have designed a gating pulse from comparator and delay it with a 555 timer.

As i know i needed a pulse transformer to drive the thyristor for making AC/DC converter. What part no to recommend ?


Joined Apr 20, 2004
Pulse transformers are usually 1:1 devices. Just observe polarity so the pulse makes the gate positive relative to the cathode to switch the device.


Joined Feb 4, 2008
Also, take care of the pulse duration rating of the transformer. If you apply pulses which last longer than the rated value then after yuor pulse will overcome the rating pulse time the output voltage of the transformer will start to decrease exponentially due to saturation of the core.