Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1998-12-21
2000-11-14
Ballato, Josie
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
361 87, 323283, 340650, H02H 318
Patent
active
061478482
ABSTRACT:
A pulse width modulation driver provides programmable current control for a variety of load current ranges using a modulation feedback block. The block scales a signal representative of a sensed current flowing through the load by a selectable gain multiplier. The scaled signal is compared to a target current value to indicate to a driver control when to generate trigger signals for switching current through the load. In this way, load currents can be amplified to match the operational range of the comparator.
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Boggs Brian L.
Gottshall Paul C.
Hart Steven O.
McGee Brian G.
Ballato Josie
Caterpillar Inc.
Huynh Kim
Kibby Steven G.
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