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. 15, 2023
Filed:
Jun. 14, 2021
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Vijay G. Phadke, San Jose, CA (US);
Prudhvi Mohan Maddineni, Sunnyvale, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/34 (2007.01); H01F 27/38 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H01F 27/38 (2013.01); H02M 1/0064 (2021.05); H02M 1/348 (2021.05); H02M 3/33507 (2013.01); H02M 3/33569 (2013.01);
Abstract
Disclosed herein is an improved flyback converter that separates the magnetic components of the converter into a transformer and a separate, discrete energy storage inductor. This arrangement can improve the operating efficiency of the converter by reducing the commutation losses as compared to a conventional flyback converter. The magnetic components may be constructed on separate magnetic cores or may be constructed on magnetic cores having at least one common element, thereby allowing for at least partial magnetic flux cancellation in a portion of the core, reducing core losses.