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:
Jan. 09, 2007
Filed:
Sep. 13, 2005
John S. Kleine, Cary, NC (US);
Thomas A. Jochum, Durham, NC (US);
John S. Kleine, Cary, NC (US);
Thomas A. Jochum, Durham, NC (US);
Intersil Americas, Inc., Mlpitas, CA (US);
Abstract
A phase removal control system for a multiphase DC/DC converter including combination logic, disable logic, and a current detector. The multiphase DC/DC converter includes first and second output phase circuits and a controller providing first and second PWM signals for the first and second output phase circuits, respectively. The combination logic combines the second PWM signal with the first PWM signal when a phase enable signal is de-asserted and while a current detect signal indicates current above a predetermined minimum current level. The disable logic passes the second PWM signal to the second output phase circuit when the phase enable signal is asserted and blocks the second PWM signal from the second output phase circuit when the phase enable signal is de-asserted. The current detector has an input for sensing current through the second output phase circuit and an output providing the current detect signal indicative thereof.