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:
Apr. 30, 2024
Filed:
Sep. 03, 2021
Applicant:
Analog Devices International Unlimited Company, Limerick, IE;
Inventors:
Jingwen Mao, Shanghai, CN;
Zhijie Zhu, Shanghai, CN;
Assignee:
Analog Devices International Unlimited Company, Limerick, IE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 1/14 (2006.01); H02M 1/15 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 1/0009 (2021.05); H02M 1/14 (2013.01); H02M 1/15 (2013.01);
Abstract
Described herein is a spur-free technique for a switching regulator. The switching regulator may self-adaptively reduce the spur of the output voltage without affecting performance of the switching frequency, The switching regulator may track a coil current and may use an active feedback loop to adaptively generate an artificial coil current, which tracks an amplitude of the coil current but having opposite phase. The artificial coil current may then be injected into an output node to cancel the coil current ripple.