Switching element drive circuit

Details Switching element drive circuit Switching element drive circuit

2007-07-02

2009-08-04

Patel, Rajnikant B (Department: 2838)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S434000, C318S254100, C318S132000

Reexamination Certificate

active

07570086

ABSTRACT:
There are provided: a voltage division circuit (13) that performs voltage division of the voltage applied between the main electrodes of a non-latching switching element (11) having two main electrodes and a single control electrode at voltage division elements (14a) to (14c); a control current source (16) that injects current at the control electrode in accordance with the divided voltage of main voltage detection voltage division elements, of the voltage division elements (14a) to (14c) of the voltage division circuit (13) and a voltage division ratio control circuit (20) that adjusts the voltage division ratio of the main voltage detection voltage division elements (14b), (14c) of the voltage division circuit (13) in accordance with a control signal for controlling the switching element (11).

REFERENCES:
patent: 6538404 (2003-03-01), Kato et al.
patent: 6683490 (2004-01-01), Kaminishi
patent: 6727516 (2004-04-01), Katoh et al.
patent: 7038500 (2006-05-01), do Nascimento
patent: 7365579 (2008-04-01), Kimura et al.
patent: 2003-69401 (2003-03-01), None
patent: 2005-86940 (2005-03-01), None

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