METHOD AND CIRCUIT FOR DETERMINING THYRISTOR BUILD-UP MOMENTS IN THE INVERTER IN MONOPHASED BRIDGE WITH PARALLELLY COMPENSATED LOAD

摘要

the invention refers to a method and a circuit for determining the start time of the inverter tiristoarelor moments in bridge monofazata with pregnancy matched parallelused to achieve the static medium frequency generators, in the field of metals for warming by induction tempering, forging and melting.the method consists in the fact that, in all the time "inverter,priming tiristoarelor does at times when the load drops below the value it had at a point in time after the passage through zero at a distance equal to the time required toru blocking certain tiristoarelor.