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:
Mar. 30, 2021
Filed:
Dec. 10, 2019
Delta Electronics, Inc., Taoyuan, TW;
Shuailin Du, Taoyuan, TW;
Yongkai Liao, Taoyuan, TW;
DELTA ELECTRONICS, INC., Taoyuan, TW;
Abstract
A distance detection method and system for a wireless power transmission device are disclosed. The wireless power transmission device includes a transmitter circuit and a receiver circuit, wherein a transmitting coil of the transmitter circuit and a receiving coil of the receiver circuit form an inductive circuit via magnetic coupling. The distance detection method includes: calculating an inductance value of a magnetizing inductance of the inductive circuit according to electrical parameters of the receiver circuit and electrical parameters of the transmitter circuit; and calculating a distance between the transmitting coil and the receiving coil according to the inductance value of the magnetizing inductance of the inductive circuit.