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. 08, 2003
Filed:
Dec. 06, 2001
Applicant:
Inventors:
Asad M. Madni, Los Angeles, CA (US);
Jim B. Vuong, Northridge, CA (US);
Philip Vuong, Northridge, CA (US);
Assignee:
BEI Sensors & Systems Company, Inc,., Sylmar, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/60 ;
U.S. Cl.
CPC ...
H03M 1/60 ;
Abstract
A digitally programmable pulse-width-modulation (PWM) converter changes a 0% to 100% duty cycle input signal to any desired start and stop duty cycle range; for example, 5% to 95%. This is achieved by the difference in start and stop duty cycles forming a ratio which determines a pair of clock frequencies for modifying the PWM signal to provide the new start and stop duty cycle parameters.