Very low current oscillator with variable duty cycle

Details Very low current oscillator with variable duty cycle Very low current oscillator with variable duty cycle

2005-07-05

2005-07-05

Pascal, Robert (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

14, 14

Reexamination Certificate

active

06914494

ABSTRACT:
A low current oscillator circuit comprising a comparator for driving an output signal. A first capacitor chain is coupled to the comparator. The first capacitor chain is configured for setting a first input voltage of the comparator. A second capacitor chain is also coupled to the comparator. The second capacitor chain is configured for setting a second input voltage of the comparator, wherein the first capacitor chain and the second capacitor chain determine a first voltage level and a second voltage level of oscillation of the comparator. The first capacitor chain and the second capacitor chain are free of DC current flow.

REFERENCES:
patent: 5384554 (1995-01-01), Abernethy
patent: 6356161 (2002-03-01), Nolan et al.
patent: 6456170 (2002-09-01), Segawa et al.

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