Semiconductor power circuit has second transistor across base emitter connection of a first transistor for short circuit control

摘要

A semiconductor power unit with a circuit to limit the voltage between two connections to the unit comprises a resistance (R) switched across the base-emitter of a transistor (TT) whose collector is grounded. A second transistor (T1) across the base-emitter of the first can short it from an external connection (ST) via a control switch.