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:
Sep. 27, 2022
Filed:
Jan. 22, 2021
Shanghai Bright Power Semiconductor Co., Ltd., Shanghai, CN;
SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD., Shanghai, CN;
Abstract
A power conversion circuit and a method thereof, wherein the power conversion circuit includes a first grid interface and a second grid interface coupled to an AC power source, a power harvesting module, a sampling module and a switching module. The power harvesting module is coupled to the first grid interface, and the power harvesting module includes a first diode and a first charging capacitor coupled to the first diode. The power harvesting module receives the AC power source from the first grid interface to generate an output voltage. The switching module includes a switch component controlled by the sampling module. The sampling module is coupled to the power harvesting module and acquires a sampling voltage. The sampling module controls the switch component to be turned off during at least a period of time within positive half cycles of the AC power source.