Coupled sawtooth oscillator

Details Coupled sawtooth oscillator Coupled sawtooth oscillator

1999-04-08

2000-08-22

Mis, David

Oscillators

Relaxation oscillators

331 57, 331111, 331175, H03B 524

Patent

active

061078948

ABSTRACT:
Relaxation oscillator comprising a chain of coupled sawtooth generator stages. Each stage has a capacitor which is charged and discharged. The charging of a capacitor begins when the voltage (C.sub.C1) of a previous stage reaches a threshold voltage (V.sub.H). To avoid sampling of noise on the threshold voltage (V.sub.H) each new voltage ramp is started gradually.

REFERENCES:
patent: 5952891 (1999-09-01), Boudry
"A 1.2--.mu.m CMOS Current-Controller Oscillator", by Michael P. Flynn et al, IEEE Journal of Solid=State Circuit, vol. 27, No. 7, Jul. 1992, pp. 982-987.

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