Gate driving circuit

Details Gate driving circuit Gate driving circuit

2008-04-29

2008-04-29

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S112000, C327S424000, C327S588000

Reexamination Certificate

active

07365579

ABSTRACT:
A gate driving circuit has a variable current carrying path that switches a current carrying path among a driving target device, a DC power source and a reactor to operate in plural operation modes including at least a hold mode, a preparation mode, and an execution mode. The variable current carrying path includes a backflow path for causing a reactor current flowing through the reactor to flow back to the DC power source when a gate voltage of the driving target device deviates from a preset allowable voltage range. A drive control part sets the operation mode of the variable current carrying path to the hold mode and holds the ON state or the OFF state of the driving target device, and further switches the operation mode in sequence of the preparation mode and the execution mode, and realizes turn-on or turn-off of the driving target device.

REFERENCES:
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patent: 6911848 (2005-06-01), Vinciarelli
patent: 7091753 (2006-08-01), Inoshita
patent: 2005/0001659 (2005-01-01), Inoshita
patent: A-2001-314075 (2001-11-01), None

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