High precision bipolar current source

Details High precision bipolar current source High precision bipolar current source

1993-12-21

1995-09-05

Dougherty, Thomas M.

Electricity: power supply or regulation systems

Self-regulating

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

G05F 304

Patent

active

054481570

ABSTRACT:
A bipolar current source which provides negative and positive currents have been equalized by magnitude. During the majority of the time, the bipolar current source is operating both positive and negative currents are output by the circuit. For a small percentage of the time, both the negative and positive currents are fed into current equalizing circuitry. The current equalizing circuitry generates a feedback signal which is transmitted to either the positive or negative current sources and the magnitude of that current is adjusted until the magnitudes of the positive and negative currents are equal. The bipolar current source then resumes normal operation.

REFERENCES:
patent: 4275347 (1981-06-01), Farmer, Jr. et al.
patent: 4567426 (1986-01-01), van de Plassette et al.
patent: 4596948 (1986-06-01), Wall

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