Semiconductor circuit arrangement for controlling a high...

Details Semiconductor circuit arrangement for controlling a high... Semiconductor circuit arrangement for controlling a high...

2004-11-22

2008-11-11

Sherry, Michael J (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

With operation facilitating feature

Reexamination Certificate

active

07449801

ABSTRACT:
In the case of a semiconductor circuit arrangement for controlling a high voltage with a series circuit of semiconductor modules, the high voltage possibly being dropped between the ends of the series circuit, increased functional reliability is achieved by each semiconductor module having a parallel circuit of at least two components, at least one first component of which can be conducting or blocking, during normal operation, for that partial voltage of the high voltage which is applied to it, by the remaining component(s) of a parallel circuit blocking, during normal operation, at least when the first component blocks, and by each semiconductor module being set up in such a manner that, in the event of a functional disturbance in the first component, the remaining component(s) permanently change(s) into a conducting state.

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