High speed, large-current power control apparatus

Details High speed, large-current power control apparatus High speed, large-current power control apparatus

1996-04-26

1997-06-10

Hecker, Stuart N.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

361101, 363 56, G05F 1573, H02H 300

Patent

active

056379900

ABSTRACT:
A power control apparatus for protecting an electrical circuit from excessive current and in particular for protecting it from a large and fast transition pulse caused by a rapid current polarity transition. At least two switching devices are coupled in series or in parallel between a power supply and a load. A gate signal is generated to change the switching devices from conductive state to nonconducting state in response to detection of an excessive current state. The gate signal is delayed by a predetermined period of time to change the switching devices into the nonconducting state after all of the switching devices are saturated so that the rapid current polarity transition is eliminated.

REFERENCES:
patent: 4638396 (1987-01-01), Mukli et al.
patent: 4736267 (1988-04-01), Karlmann et al.
patent: 5300765 (1994-04-01), Mizuta
patent: 5375029 (1994-12-01), Fukunaga et al.
patent: 5440441 (1995-08-01), Ahuja
patent: 5497072 (1996-03-01), LeComte et al.

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