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:
May. 05, 2015
Filed:
Dec. 20, 2011
Philippe C. Adell, Pasadena, CA (US);
Bertan Bakkaloglu, Scottsdale, AZ (US);
Bert Vermeire, San Diego, CA (US);
Tao Liu, San Diego, CA (US);
Philippe C. Adell, Pasadena, CA (US);
Bertan Bakkaloglu, Scottsdale, AZ (US);
Bert Vermeire, San Diego, CA (US);
Tao Liu, San Diego, CA (US);
California Institute of Technology, Pasadena, CA (US);
Arizona State University, Ira A. Fulton Schools of Engineering, Tempe, AZ (US);
Abstract
A DC-DC converter for generating a DC output voltage includes: a digitally controlled pulse width modulator (DPWM) for controlling a switching power stage to supply a varying voltage to an inductor; and a digital voltage feedback circuit for controlling the DPWM in accordance with a feedback voltage corresponding to the DC output voltage, the digital voltage feedback circuit including: a first voltage controlled oscillator for converting the feedback voltage into a first frequency signal and to supply the first frequency signal to a first frequency discriminator; a second voltage controlled oscillator for converting a reference voltage into a second frequency signal and to supply the second frequency signal to a second frequency discriminator; a digital comparator for comparing digital outputs of the first and second frequency discriminators and for outputting a digital feedback signal; and a controller for controlling the DPWM in accordance with the digital feedback signal.