Circuit for diagnosing the state of an electrical load

Details Circuit for diagnosing the state of an electrical load Circuit for diagnosing the state of an electrical load

1997-09-15

1999-03-23

Hecker, Stuart N.

Electricity: power supply or regulation systems

Output level responsive

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

361 86, 324503, G05F 140

Patent

active

058865101

ABSTRACT:
A circuit for diagnosing the state of a load connected to a driver includes a DMOS transistor interposed between a terminal of the load and voltage comparator circuits. The DMOS transistor limits the maximum voltage input to the comparators to thereby reduce the circuit area occupied by the comparators and consequently to reduce the cost of the diagnosis circuit.

REFERENCES:
patent: 4962350 (1990-10-01), Fukuda
patent: 5166549 (1992-11-01), DeDoncker
patent: 5304935 (1994-04-01), Rathke et al.
patent: 5311138 (1994-05-01), Ott et al.
patent: 5467240 (1995-11-01), Williamson et al.
patent: 5570259 (1996-10-01), Allmeier et al.
patent: 5623254 (1997-04-01), Brambilla et al.

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