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:
Nov. 08, 2022
Filed:
Feb. 27, 2020
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
An electronic device includes a reception coil configured to wirelessly receive power based on an externally formed magnetic field, a rectifier configured to rectify power generated from the reception coil, an over-voltage protection circuit connected with the rectifier, and an output capacitor connected with the over-voltage protection circuit, wherein the over-voltage protection circuit includes a negative temperature coefficient thermistor (NTC) selectively connected in parallel with the rectifier and the output capacitor and a switch connecting the NTC to the rectifier and the output capacitor when a voltage at an output terminal of the rectifier exceeds a designated threshold, and disconnecting the NTC from the rectifier and the output capacitor when the voltage at the output terminal of the rectifier is less than or equal to the designated threshold.