Jim Edwards
New Member
Can anyone help me with the following circuit.
I am replacing a bridge rectifier in a dc welding set. I have acquired 2 thyristor / thyristor modules (International Rectifiers IRKT 250 / 16). I am wanting to build a circuit to trigger the thyristors. I dont need any phase control, I want them to be fully on all the time. I would like to isolate the control from the power side using trigger transformers. The bridge supply will be 20 to 30 v AC. Would I be better supplying the control voltage through a seperate transformer to synchronise to the mains?
Can anyone design me a circuit that takes into account the cost of the modules. I would hate to blow them by miss firing them.
Thanks in anticipation of a reply.
I am replacing a bridge rectifier in a dc welding set. I have acquired 2 thyristor / thyristor modules (International Rectifiers IRKT 250 / 16). I am wanting to build a circuit to trigger the thyristors. I dont need any phase control, I want them to be fully on all the time. I would like to isolate the control from the power side using trigger transformers. The bridge supply will be 20 to 30 v AC. Would I be better supplying the control voltage through a seperate transformer to synchronise to the mains?
Can anyone design me a circuit that takes into account the cost of the modules. I would hate to blow them by miss firing them.
Thanks in anticipation of a reply.