Drive circuit device for a power semiconductor, and signal...

Details Drive circuit device for a power semiconductor, and signal... Drive circuit device for a power semiconductor, and signal...

2009-06-23

2011-10-18

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S112000

Reexamination Certificate

active

08040161

ABSTRACT:
A power semiconductor drive circuit device includes: an electronic control device generating a control input signal; a signal transfer circuit device having a main path and a self-diagnosis functional block; and a power semiconductor driven by the control output signal from the signal transfer circuit device. The self-diagnosis functional block includes: a feedback pulse transmitter circuit; a second signal transfer circuit; and a second receiver circuit. The second receiver circuit compares the control output signal with the control input signal so as to find out whether the control output signal is matched or unmatched with the control input signal, and then outputs a result to a comparison signal output terminal. A signal outputted to the comparison signal output terminal is transferred to the electronic control device.

REFERENCES:
patent: 4912373 (1990-03-01), Moreau
patent: 6906574 (2005-06-01), Ohi et al.
patent: 7075329 (2006-07-01), Chen et al.
patent: 7746614 (2010-06-01), Ishikawa et al.
patent: 09-008624 (1997-01-01), None

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