Smart power driver system for a motor vehicle

Details Smart power driver system for a motor vehicle Smart power driver system for a motor vehicle

1989-08-21

1991-11-05

Lall, Parshotam S.

Boots, shoes, and leggings

364483, 340635, G01R 3102

Patent

active

050635166

ABSTRACT:
An electrical power driver system with fault monitoring provision for both a self test mode and a normal operating mode. During the self test mode, the power driver is momentarily actuated during test intervals and its output compared to a predetermined value for providing self test fault indications. Each power driver is sampled and an indication provided of whether the fault is new or old in addition to providing a count of faults. During normal operation, monitoring circuitry provides indications of a plurality of fault types including over temperature, open circuit, short to ground, and short to voltage. A determination is made of whether each fault type is new or old and a count of faults provided. Output formatting provides indications of fault type, fault count, and whether the fault is intermittent or hard.

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Siemens, "SMT 12 SMART-SIPMOS.RTM. Intelligent Monolithic Power Switch", pp. 1-6, issued by Colorado Components Division, 10/85.

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