Arrangement for testing a power output stage

Details Arrangement for testing a power output stage Arrangement for testing a power output stage

2004-11-09

2008-08-26

Patel, Rajnikant B (Department: 2838)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S811000, C363S095000, C330S002000, C330S146000

Reexamination Certificate

active

07417394

ABSTRACT:
The invention concerns a device for controlling a final power-output stage, the latter comprising three half-bridges consisting respectively of a series circuit including an upper semiconductor switch and a lower semiconductor switch and subjected to a service voltage, the connection points of the semiconductor switches of the half-bridges forming outputs which are connected to the windings of a motor having at least three phases. The invention is characterized in that there is provided a control device for shifting on-state respectively one semiconductor switch or simultaneously several semiconductor switches according to a predetermined programme and for determining whether the respective voltages at the outputs are respectively within a predetermined tolerance range for the corresponding switching state.

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