Load drive circuit

Details Load drive circuit Load drive circuit

2006-05-16

2006-05-16

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

C327S108000

Reexamination Certificate

active

07046073

ABSTRACT:
A load drive circuit includes a plurality of control sections for drive controlling of a drive switching element while protecting the drive switching element from a predetermined abnormality status, and a current blocking switching element being provided in at least any of a path between the control sections and a power source and a path between the control sections and a ground. When an input to an input circuit is OFF, a current flowing to a gate drive circuit for on/off driving of the drive switching element becomes an OFF state, the driving switching element becomes an OFF state, and the input circuit causes each current blocking switching element to be an OFF state to block dark current.

REFERENCES:
patent: 6313690 (2001-11-01), Ohshima
patent: 6377428 (2002-04-01), Ogasawara
patent: 6661260 (2003-12-01), Nakahara et al.
patent: A 2000-312433 (2000-11-01), None

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