Method of controlling the duty of a PWM signal, PWM signal...

Details Method of controlling the duty of a PWM signal, PWM signal... Method of controlling the duty of a PWM signal, PWM signal...

2005-06-09

2009-10-06

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C363S021100, C363S021180

Reexamination Certificate

active

07599201

ABSTRACT:
A PWM signal generating circuit that generates a PWM signal having a period controlling portion for slightly fluctuating a period of the PWM signal; and a duty controlling portion for changing a duty of the PWM signal by changing a duty ratio in the period fluctuated by the period controlling portion.

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patent: 6433459 (2002-08-01), Okada
patent: 6563283 (2003-05-01), Iwashita et al.
patent: 6965335 (2005-11-01), Trotter et al.
patent: 2003/0174005 (2003-09-01), Latham et al.
patent: 2001-178143 (2001-06-01), None

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