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.:

US 12395002 B1

Date of Patent:

Aug. 19, 2025

Filed:

Jun. 10, 2022

Adapter and charging method

Applicants:

Guangdong Oppo Mobile Telecommunications Corp., Ltd., Dongguan, CN;

Powerland Technology Inc., Nanjing, CN;

Inventors:

Chen Tian, Dongguan, CN;

Feng Ji, Nanjing, CN;

Jialiang Zhang, Dongguan, CN;

Assignees:

GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan, CN;

POWERLAND TECHNOLOGY INC., Nanjing, CN;

Attorney:

Sheppard, Mullin, Richter & Hampton LLP

Primary Examiner:

Samuel Berhanu

Int. Cl.

CPC ...

H02J 7/00 (2006.01); G01R 19/22 (2006.01); H01F 27/40 (2006.01); H01F 27/42 (2006.01); H02J 7/04 (2006.01);

U.S. Cl.

CPC ...

H02J 7/04 (2013.01); G01R 19/22 (2013.01); H01F 27/402 (2013.01); H01F 27/425 (2013.01); H02J 7/00041 (2020.01); H02J 2207/20 (2020.01);

Abstract

Provided are an adapter and a charging method. The adapter includes: at least one filter capacitor () having a capacitance smaller than a predetermined threshold and configured to filter a rectified alternating current to obtain a pulsating direct current; and a voltage transformation module () configured to transform the pulsating direct current to obtain a voltage and a current for charging a device to be charged. The adapter for charging a battery is provided, the volume of the adapter can be reduced and the miniaturization of the volume of the adapter can be realized.

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