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:
Aug. 01, 2017
Filed:
Oct. 13, 2014
Motorola Mobility Llc, Chicago, IL (US);
Daniel H. Wagner, Grayslake, IL (US);
GOOGLE TECHNOLOGY HOLDINGS LLC, Mountain View, CA (US);
Abstract
A method and apparatus operate a switchmode power supply. The apparatus can include a pulse width modulation controller that can produce a first pulse width modulation signal at a first frequency. The apparatus can include a switchmode power supply switching element including a control terminal. The apparatus can include a harmonic filter coupled between the pulse width modulation controller and the control terminal of the switching element. The harmonic filter can provide a second pulse width modulation signal at a second frequency to the control terminal of the switching element. The second frequency can be higher than the first frequency.