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.

Date of Patent:
Jul. 12, 2022

Filed:

Aug. 31, 2020
Applicant:

Stmicroelectronics Asia Pacific Pte Ltd, Singapore, SG;

Inventors:

Eng Jye Ng, Singapore, SG;

Chee Weng Cheong, Singapore, SG;

Huiqiao He, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 50/10 (2016.01); H02M 1/36 (2007.01); H02M 1/00 (2006.01); H02J 7/02 (2016.01); H02M 1/08 (2006.01);
U.S. Cl.
CPC ...
H02J 50/10 (2016.02); H02J 7/02 (2013.01); H02M 1/08 (2013.01); H02M 1/36 (2013.01); H02J 2207/20 (2020.01); H02M 1/0045 (2021.05);
Abstract

A system comprising includes a wireless power receiver generating a rectified voltage. A low dropout regulator (LDO) generates a first regulated output voltage from the rectified voltage, during a first phase. A first switch couples the first regulated output voltage to a voltage output node during the first phase. During a second phase, the LDO generates a second regulated output voltage from the rectified voltage. A switching regulator generates a third regulated output voltage during the second phase. A second switch couples the third regulated output voltage to the voltage output node during the second phase. During a third phase, the LDO is disabled, while the switching regulator continues to generate the third regulated output voltage. The first switch opens during the third phase while the second switch remains closed.


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