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:
Mar. 15, 2005
Filed:
Mar. 28, 2000
Applicants:
Zahid Ansari, Menlo Park, CA (US);
Bruce L. Prickett, Fremont, CA (US);
Jonathan Andrew Guy, Austin, TX (US);
Inventors:
Zahid Ansari, Menlo Park, CA (US);
Bruce L. Prickett, Fremont, CA (US);
Jonathan Andrew Guy, Austin, TX (US);
Assignee:
Daydreams LLC, West Palm Beach, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M007/162 ;
U.S. Cl.
CPC ...
Abstract
A pulse width modulation scheme allows the creation of a unipolar pulse width modulated output signal. Two switching circuits (), preferably different legs of an inverter circuit, can operate to not only modulate an input voltage but also to reverse the polarity of the PWM output signal. Both switching circuits can be configured to accomplish both features, thus the switching load is spread out across all four switches.