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. 16, 2024
Filed:
Mar. 18, 2022
Alpha and Omega Semiconductor International Lp, Toronto, CA;
Nicholas I. Archibald, San Francisco, CA (US);
Steven P. Laur, Raleigh, NC (US);
Rhys S. A. Philbrick, Los Gatos, CA (US);
Alpha and Omega Semiconductor International LP, Toronto, CA;
Abstract
A controller for a switching regulator receiving an input voltage and generating a regulated output voltage includes a buck control circuit and a boost control circuit. The controller activates the buck control circuit to generate the regulated output voltage having a first voltage value less than the input voltage. The controller activates the boost control circuit to return charges stored on the output capacitor at the output node to the input node, thereby driving the regulated output voltage to a second voltage value lower than the first voltage value. In some embodiments, in response to a command instructing the controller to allow the output voltage to decay, the controller operates in the boost mode using the boost control circuit to recycle the stored charge at the output node while ramping down the output voltage.