HYBRID TRIGGER CIRCUIT SUITABLE FOR THYRISTOR

摘要

A hybrid trigger circuit suitable for a thyristor, comprising a hardware method trigger circuit and a software method trigger circuit, wherein the hardware method trigger circuit is connected to the software method trigger circuit in parallel through a gate line and a cathode line, so as to trigger the thyristor. The software method trigger circuit triggers the thyristor through a logical judgement, both the trigger pulse width and the continuous trigger time being able to be set by software, and has relatively high electrical isolation. The hardware method trigger circuit can bear a relatively high overvoltage value, and can continuously trigger the thyristor. The hybrid trigger circuit has a simple structure and low costs and is realized easily.