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:
Jun. 23, 2020
Filed:
Dec. 12, 2018
Hisense Home Appliances Group Co., Ltd., Foshan, Guangdong, CN;
Hisense (Guangdong) Air Conditioner Co., Ltd., Jiangmen, Guangdong, CN;
Bin Wang, Guangdong, CN;
Hisense Home Appliances Group Co., Ltd., Foshan, Guangdong, CN;
HISENSE (GUANGDONG) AIR CONDITIONER CO., LTD., Jiangmen, Guangdong, CN;
Abstract
The present disclosure provides a PFC converter control method, an inverter household appliance and a PFC converter control method for an inverter household appliance, where the method includes: controlling the PFC converter to generate a frequency offset function where frequency offset value periodically varies with time, superimposing the frequency offset function on a carrier reference frequency of the PFC converter to obtain a periodically varying PFC carrier frequency function; detecting a phase of a voltage of an alternating current of an electrical grid, and controlling a PFC carrier frequency corresponding to each frequency point of the PFC carrier frequency function to periodically vary with the phase of the voltage of the alternating current of the electrical grid, which effectively reduces an amplitude of the highest interference power spectrum detected during a test process, and achieves the purpose of reducing the level of electromagnetic interference in the high frequency PFC technology.