METHOD AND DEVICE FOR ACTUATING A POWER CIRCUIT BREAKER

摘要

The invention relates to a method for actuating a semiconductor power circuit breaker, by which means the resistance of the breaker gap (E-A) of the semiconductor power circuit breaker is controlled by a control voltage (Vst) in such a way that the chip temperature (T1ist, T2ist) of the power circuit breaker (S1, S2) does not exceed a pre-determined nominal value (Tsoll). When the nominal temperature (Tsoll) is reached, the resistance of the breaker gap (E-A) is increased. The invention also relates to a device for carrying out said method, said device using a transfer gate (TG) controlled by a charge pump (LP) as a semiconductor power circuit breaker. Commercially available transistors comprising integrated temperature sensors are used in the transfer gate (TG) as semiconductor power circuit breakers.