Loss-less load current sensing driver and method therefor

Details Loss-less load current sensing driver and method therefor Loss-less load current sensing driver and method therefor

1996-09-03

1999-09-28

Ballato, Josie

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

361103, 324765, G01R 3126

Patent

active

059594640

ABSTRACT:
A loss-less load current sensing driver and method includes providing current (603) to a load from a power supply through a transistor. A voltage drop is measured (605) across the transistor responsive to the provision of current to the load. A temperature of the transistor is measured (607) and a temperature-indicating signal is provided. The temperature-indicating signal is translated (609) into a predicted transistor on-resistance. A magnitude of the current provided to the load is determined dependent on the measured voltage drop across the transistor and the predicted transistor on-resistance, preferably by dividing (611) the measured voltage drop by the predicted transistor on-resistance.

REFERENCES:
patent: 4595966 (1986-06-01), Huber et al.
patent: 4779161 (1988-10-01), DeShazo, Jr.
patent: 4896245 (1990-01-01), Qualich
patent: 4937697 (1990-06-01), Edwards et al.
patent: 5008736 (1991-04-01), Davies et al.
patent: 5119265 (1992-06-01), Qualich et al.
patent: 5379230 (1995-01-01), Morikawa et al.
patent: 5581170 (1996-12-01), Mammano et al.
patent: 5608595 (1997-03-01), Gourab et al.
patent: 5640293 (1997-06-01), Dawes et al.

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