Control circuit for use with electronic attenuators and method f

Details Control circuit for use with electronic attenuators and method f Control circuit for use with electronic attenuators and method f

1985-09-04

1987-08-25

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307310, 307296R, 323315, 323907, 330257, H03K 326, H03K 301, G06K 710

Patent

active

046895060

ABSTRACT:
A control circuit for developing a modulated voltage which is proportional to absolute temperature that includes a thermal current source for producing current having a predetermined temperature coefficient and current steering circuitry for proportionally steering the current between first and second outputs in response to a direct current bias voltage applied thereto wherein the current at the first output of the current steering circuitry flows through a resistor. The resistor is connected between a source of different current operating potential and the first output of the current steering circuitry whereby the voltage developed thereacross due to the current steered therethrough is proportional to absolute temperature.

REFERENCES:
patent: 4587478 (1986-05-01), Kasperkovitz
patent: 4591743 (1986-05-01), Kung
patent: 4593208 (1986-06-01), Single

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