Method and apparatus for monitoring and protecting a...

H - Electricity – 02 – H

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328/198, 323/4

H02H 7/20 (2006.01) H02H 3/06 (2006.01) H03F 1/52 (2006.01)

Patent

CA 1228641

METHOD AND APPARATUS FOR MONITORING AND PROTECTING A SEMICONDUCTOR OUTPUT DEVICE ABSTRACT OF THE DISCLOSURE A semiconductor output device(l2)connected to a load is monitored and protected from potentially destructive conditions such as short circuits, high current transients, and overload. A sensed voltage signal having a magnitude proportional to the magnitude of the current supplied by the semiconductor output device to the load is compared to a reference voltage. Whenever the reference voltage exceeds the sensed voltage signal, a pulse is triggered to deactivate the semiconductor output device(12).

432052

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