Driving apparatus of H bridge circuit and protection method...

Details Driving apparatus of H bridge circuit and protection method... Driving apparatus of H bridge circuit and protection method...

2007-05-01

2007-05-01

Le, Don (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C318S004000

Reexamination Certificate

active

11057786

ABSTRACT:
In order to protect semiconductor switching-devices employed in an H bridge circuit against an over-voltage without using a special protection circuit, a control circuit outputs a control signal to a driving circuit for driving the H bridge circuit in order to turn off FETs serving as the semiconductor switching-devices when an over-voltage detection circuit detects the over-voltage applied to the H bridge circuit.

REFERENCES:
patent: 6385028 (2002-05-01), Kouno
patent: 6545886 (2003-04-01), Ireland
patent: 6940144 (2005-09-01), Nakayama
patent: 7023152 (2006-04-01), Sunaga et al.
patent: A-11-341851 (1999-12-01), None

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