誘導充電装置のための異物検知方法および誘導充電装置

Title:

誘導充電装置のための異物検知方法および誘導充電装置

Document Type and Number:

Japanese Patent JP6594417

Kind Code:

B2

Abstract:

A method for foreign object detection for an induction charging device is described, including an oscillator circuit, in particular, for a hand-held power tool, a resonance frequency and an associated actual quality of the oscillator circuit being detected and the actual quality is subsequently compared to a setpoint quality as a function of the resonance frequency and a decision is made about the presence of a foreign object based on a defined setpoint quality range. The method provides that an internal temperature of induction charging device is detected, in particular, during the wireless energy transmission, and the actual quality is multiplied by a correction factor based on the internal temperature. Also, an induction charging device is described that includes an oscillator circuit and a control and regulating unit, as well as at least one temperature sensor for carrying out the method.

Inventors:

Martin, Gonda
Mack, Jurgen
Krupeshevich, Dragan

Application Number:

JP2017516827A

Publication Date:

October 23, 2019

Filing Date:

August 26, 2015

Export Citation:

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