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:
Sep. 29, 2020
Filed:
May. 01, 2018
Applicant:
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Inventors:
Assignee:
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/315 (2006.01); H02M 3/337 (2006.01); H02M 3/335 (2006.01); H02M 3/155 (2006.01); H02M 3/24 (2006.01); H03J 1/00 (2006.01); H04B 1/715 (2011.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/3376 (2013.01); H02M 3/155 (2013.01); H02M 3/24 (2013.01); H02M 3/335 (2013.01); H02M 3/33507 (2013.01); H02M 3/33523 (2013.01); H03J 1/0091 (2013.01); H04B 1/715 (2013.01); H02M 2001/0025 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1491 (2013.01); Y02P 80/112 (2015.11);
Abstract
A power supply includes a transistor that is connected to a primary winding of a transformer. A controller controls a switching operation of the transistor by quasi-resonant switching. The controller receives a feedback voltage and adjusts the feedback voltage to adjust a blanking frequency, which is an inverse of a blanking time during which the transistor is prevented from being turned on. The controller turns on the transistor after expiration of the blanking time based on a level of a resonant ring.