System for protecting a power semiconductor output stage...

Details System for protecting a power semiconductor output stage... System for protecting a power semiconductor output stage...

2005-05-03

2005-05-03

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S701000, C388S903000

Reexamination Certificate

active

06888327

ABSTRACT:
A system for protecting a power semiconductor output stage that, as a function of a control signal, connects an inductive load to a direct-current supply voltage and disconnects it therefrom. Protection from the induced voltages is achieved, without a freewheeling diode, in that the disconnection energy occurring at the inductive load upon disconnection can be transferred in transformer fashion to an additional inductance that is loaded with a resistance or is coupled in the countercurrent direction to the direct-current supply voltage.

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