Sigma-delta modulated power supply

Details Sigma-delta modulated power supply Sigma-delta modulated power supply

2007-11-27

2007-11-27

Jeanpierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S155000

Reexamination Certificate

active

11278837

ABSTRACT:
Embodiments of the present invention provide a sigma-delta modulated power supply that is operable to sum an input signal and a feedback signal, integrate the summed signal, asynchronously quantize the integrated signal, sample the quantized signal utilizing a pseudo-random osculating signal, and amplify the sampled signal. The power supply enables discrete implementation of a low-cost, spread spectrum controlled, sigma delta modulated power supply for spectrally pure, high efficiency, low EMI power amplification.

REFERENCES:
patent: 5113189 (1992-05-01), Messer et al.
patent: 5471209 (1995-11-01), Sutterlin et al.
patent: 6452522 (2002-09-01), Wahlberg
patent: 6836231 (2004-12-01), Pearson
patent: 6970503 (2005-11-01), Kalb

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