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:
Dec. 24, 2024
Filed:
Nov. 17, 2021
Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd., Foshan, CN;
Midea Group Co., Ltd., Foshan, CN;
GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD., Foshan, CN;
MIDEA GROUP CO., LTD., Foshan, CN;
Abstract
The present disclosure relates to a power factor correction circuit, a control method, and an electrical appliance. The power factor correction circuit may include: a power regulation branch, including a first switching unit, a second switching unit and a branch sampling resistor connected in series sequentially; an inductive branch, connected between an AC power source and a power regulation branch; a rectifier branch, including a first rectifier unit and a second rectifier unit, the rectifier branch may include a main line sampling resistor; a capacitance branch; a control circuit sampling a branch current flowing through each of the branch sampling resistors and a main line current flowing through the main line sampling resistor respectively, and controlling the switching of each power regulation branch sequentially. With the branch sampling resistor and the main line sampling resistor, the overall cost of the power factor correction circuit may be reduced.