Pulse width modulation carrier frequency technique

Details Pulse width modulation carrier frequency technique Pulse width modulation carrier frequency technique

2006-10-24

2006-10-24

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S172000

Reexamination Certificate

active

07126397

ABSTRACT:
A PWM method and circuit. A temporary PWM signal is generated at a first frequency. The temporary PWM signal includes analog duty cycle information adapted for the first frequency. At least a portion of the analog duty cycle information is converted to digital duty cycle information adapted for a second frequency. A final PWM signal having a carrier frequency of the second frequency is generated from the digital duty cycle information.

REFERENCES:
patent: 6819154 (2004-11-01), Greenfeld
patent: 6828836 (2004-12-01), Barrow et al.
patent: 6853227 (2005-02-01), Laletin
patent: 6897698 (2005-05-01), Gheorghiu et al.

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