Saturation detection circuits

Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters

Reexamination Certificate

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C324S705000

Reexamination Certificate

active

07733098

ABSTRACT:
This invention generally relates to saturation detection circuits, in embodiments for substantially lossless detection of saturation of power switches in power integrated circuits. We describe a saturation detection circuit for detecting saturation of a power semiconductor device, the circuit including a said power semiconductor device having an input terminal and an output terminal, a second semiconductor device connected across said input and output terminals of the power semiconductor device, and a circuit responsive to a current flowing through the second semiconductor device to detect the saturation of the power semiconductor device.

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The Non-Final Office Action dated Aug. 7, 2009 issued in Publication No. 2009-0263271.

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