Bipolar tracking current source/sink with ground clamp

Details Bipolar tracking current source/sink with ground clamp Bipolar tracking current source/sink with ground clamp

1993-09-17

1995-11-07

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323317, G05F 308, G05F 314

Patent

active

054650410

ABSTRACT:
A system for controlling a bipolar constant current when the current is being supplied to an active or reactive element. Tracking is extended to either sink or source modes. A switchable driven ground state is also provided. An operational amplifier buffer senses the voltage amplitude at the junction of the system output and active or reactive load element. This relatively low impedance output is summed or offset with a regulated voltage. This level is again buffered to present a low output impedance and series connected with a current limiting resistor.

REFERENCES:
patent: 4451779 (1984-05-01), Griep
patent: 5153499 (1992-10-01), Klesh
patent: 5381082 (1995-01-01), Schlicht

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