Hybrid control methods for digital pulse width modulator (DPWM)

Details Hybrid control methods for digital pulse width modulator (DPWM) Hybrid control methods for digital pulse width modulator (DPWM)

2006-11-17

2009-08-04

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

07570037

ABSTRACT:
A digital pulse width modulator leverages clock frequency to achieve very fine duty cycle resolution by using a constant number of time slots for each state of a pulse signal and varying the number of time slots in a switching cycle within acceptable limits for variation of the switching cycle frequency or by using two relatively low frequency clocks of slightly differing frequency and selecting pulse leading and trailing edges in accordance with pulses output therefrom. A fine resolution of duty cycle adjustment can thus be provided corresponding to a much higher effective clock frequency than is actually used; allowing improvement of efficiency of clock and switching circuits, particularly in switching voltage regulator applications.

REFERENCES:
patent: 6998928 (2006-02-01), Stengel et al.
patent: 7142140 (2006-11-01), Storvik et al.
patent: 7206343 (2007-04-01), Pearce
patent: 7227476 (2007-06-01), Wong
patent: 7245512 (2007-07-01), Leung et al.
patent: 7271754 (2007-09-01), Maksimovic et al.
patent: 7459951 (2008-12-01), Prodic
patent: 2001/0043652 (2001-11-01), Hooley
patent: 2004/0146101 (2004-07-01), Pearce
patent: 2005/0146366 (2005-07-01), Steinschaden
patent: 2008/0101543 (2008-05-01), Yau

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