CURRENT INVERTER Russian patent published in 2006 - IPC H02M7/521 

FIELD: transforming equipment engineering, possible use as power source for induction heater.

SUBSTANCE: invention contains current inverter connected to input clamps through first and second throttles of filter 1, 2, one-phased bridge on four thyristors 3-6, four serial circuits of capacitor 7-10 and resistor 11-14, serial circuit of first commutating throttle 15, first commutating capacitor 16, bridging output clamps of current inverter, and second commutating throttle 18, connected in alternating current diagonal of one-phased bridge, bridged by second commutating capacitor 19, silicon symmetrical voltage limiter 20, bridging direct current outputs of one-phased bridge. Serially with thyristors 3-6 are bridged by opposite elements 25-28. elements 21-24 are bridged by voltage limiter 29-32. Serial circuits from capacitor 7-10 and resistor 11-14 bridge serial circuit of connection between thyristors 3-6 and elements 21-24.

EFFECT: increased reliability of current inverter operation.

1 dwg