Voltage-controlled push-pull current source

Details Voltage-controlled push-pull current source Voltage-controlled push-pull current source

1986-10-10

1987-05-19

Salce, Patrick R.

Electricity: power supply or regulation systems

Self-regulating

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

330149, 330257, G05F 320, H03F 345

Patent

active

046671463

ABSTRACT:
A voltage-controlled current source produces two output current signals whose difference is linearly related to an input voltage signal. The source includes an input buffer and a reference buffer each coupled separately to a current mirror and also coupled together across a current transmitting resistor. In response to the input voltage signal and current transmitted between the buffers, the current mirrors produce currents that differ in proportion to the difference between the input and reference voltage signals. The current mirrors also reproduce the differing currents in output paths as the output current signals. A fixed current source is coupled to each output path for drawing a fixed current from each path to linearize the current difference.

REFERENCES:
patent: 4528515 (1985-07-01), Gross

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