Voltage and temperature compensated FET ring oscillator

Details Voltage and temperature compensated FET ring oscillator Voltage and temperature compensated FET ring oscillator

1983-12-29

1985-10-15

LaRoche, Eugene R.

Oscillators

Ring oscillators

331111, 331117FE, 331176, 331186, H03B 500, H03K 326, H03L 100, H03L 102

Patent

active

045477493

ABSTRACT:
An oscillator with inverter and delay stages is coupled between first and second reference terminals. In one aspect a depletion transistor is connected between a power supply terminal and the first reference terminal to provide a reference voltage thereat. In another aspect the delay stages each have a control terminal for controlling the delay thereof. A temperature compensation circuit has a control transistor which provides a voltage to the control terminals of the delay stages which is inversely proportional to the threshold voltage of the control transistor.

REFERENCES:
patent: 3995232 (1976-11-01), Laugesen
patent: 4015219 (1977-03-01), Kawagoe et al.
patent: 4128816 (1978-12-01), Shimotsuma
patent: 4336466 (1982-06-01), Sud et al.
patent: 4408168 (1983-10-01), Higuchi

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