Universal duty cycle adjustment circuit

Details Universal duty cycle adjustment circuit Universal duty cycle adjustment circuit

1998-10-08

2000-09-19

Nguyen, Minh

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

327176, 327131, H03K 3017

Patent

active

061218057

ABSTRACT:
A duty cycle control circuit that consumes lower power and smaller silicon area, and is less susceptible to noise or jitter. In one embodiment, the invention includes a divide-by-two circuit that is edge triggered and generates a signal at its output with half the frequency of the input signal but with a 50% duty cycle. The divide-by-two circuit is followed by a frequency restore circuit that restores the original frequency of the input signal but with its duty cycle regulated at about 50%, or any other desired level.

REFERENCES:
patent: 3883756 (1975-05-01), Dragon
patent: 4620312 (1986-10-01), Yamashita
patent: 4736118 (1988-04-01), Fischer
patent: 4803445 (1989-02-01), Yamasaki

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