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. 09, 2019
Filed:
Sep. 13, 2013
Midea Group Co., Ltd., Foshan, CN;
Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd., Foshan, CN;
MIDEA GROUP CO., LTD., Foshan, CN;
GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD., Foshan, CN;
Abstract
Disclosed is a method for controlling a power supply of a high-frequency heating device, comprising: controlling a switching element of the high-frequency heating device to operate according to a control signal with a preset duty ratio; detecting a real-time current flowing through the switching element; and if the real-time current is greater than or equal to a preset current reference value, controlling the switching element to turn off, and controlling the switching element to turn on when a next turn-on window of the control signal comes. The method may reduce a maximum current during an operation of the switching element, thus reducing requirements for the switching element and enabling an effective over-current protection. Further disclosed is an apparatus for controlling a power supply of a high-frequency heating device and a high-frequency heating device with the apparatus for controlling the power supply.