Self-calibrating digital pulse-width modulator (DPWM)

Details Self-calibrating digital pulse-width modulator (DPWM) Self-calibrating digital pulse-width modulator (DPWM)

2006-02-22

2008-12-02

Wells, Kenneth B (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S172000, C327S173000, C327S174000

Reexamination Certificate

active

07459951

ABSTRACT:
A hybrid digital pulse width modulator can have a delay line with digitally programmable delay cells. The digitally programmable delay cells can be adjusted by a digital correction signal from a delay matching circuit.

REFERENCES:
patent: 2004/0222866 (2004-11-01), Stengel et al.
patent: 2005/0146366 (2005-07-01), Steinschaden
patent: 2006/0164142 (2006-07-01), Stanley
Patella, B.J.; Prodic, A.; Zirger, A.; Maksimovic, D., “High-frequency digital PWM controller IC for DC-DC converters,” Power Electronics, IEEE Transactions on , vol. 18, No. 1, pp. 438-446, Jan. 2003.
International Search Report for PCT/US07/62428, Mar. 27, 2008, 8 pages.

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