The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2007
Filed:
Jan. 24, 2003
Applicant:
Lawrence G. Pearce, Palm Bay, FL (US);
Inventor:
Lawrence G. Pearce, Palm Bay, FL (US);
Assignee:
Intersil Americas Inc., Milpitas, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/30 (2006.01); H03K 5/159 (2006.01);
U.S. Cl.
CPC ...
Abstract
A digitally-implemented pulse width modulation (PWM) signal generator forms the PWM pulse width as a rational number based on full cycles of a PWM reference clock, and offers a very high effective resolution of the PWM pulse signal that is compatible with multiphase DC-DC converters. Being totally digital allows digital error accumulation and correction to occur at the point of origin of the PWM signal, well upstream of the relatively slow voltage control feedback loop. Quantization errors are corrected before they can accumulate in the converter's DC output voltage.