Current source circuit

Details Current source circuit Current source circuit

1978-10-30

1981-02-17

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307229, 307254, 307296R, 340347AD, H03K 301

Patent

active

042517435

ABSTRACT:
A current source circuit particularly adapted for use with an analog-to-digital converter having automatic scale adjustment. A first current source produces a fixed reference current of a first value in accordance with the scale adjustment while a second current source produces a second current of which the value is controlled by the output of a differential amplifier coupled to the control input of the second current source. A detector circuit is provided for determining the difference between the second current value and the reference value. The detected difference value is fed back to a control input of the amplifier to make the second current value equal to the reference value by reducing the difference.

REFERENCES:
patent: 3316547 (1967-04-01), Ammann
patent: 4064448 (1977-12-01), Eatock
patent: 4142113 (1979-02-01), Lundberg

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