Constant current supply system for a variable resistance load

Details Constant current supply system for a variable resistance load Constant current supply system for a variable resistance load

1997-08-13

1998-09-08

Nguyen, Matthew V.

Electricity: power supply or regulation systems

Output level responsive

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

607 72, G05F 156, A61N 118

Patent

active

058049576

ABSTRACT:
A constant current supply system for a variable resistance load includes first and second output terminals for applying a predetermined current to a variable resistance load; a constant current circuit connected to the second output terminal for providing the predetermined current to the load; a voltage supply connected to the first terminal for providing a voltage across the terminal and constant current circuit; and a voltage supply control circuit for monitoring the voltage at the second terminal across the constant current circuit and adjusting the voltage supply to maintain the second terminal at a preselected voltage for maintaining the predetermined current to the variable resistance load.

REFERENCES:
patent: 3991755 (1976-11-01), Vernon et al.
patent: 5426387 (1995-06-01), Teiland et al.
patent: 5571149 (1996-11-01), Liss et al.

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