公开(公告)号：US20140167523A1

公开(公告)日：2014-06-19

申请号：US14105678

申请日：2013-12-13

Applicant: TDK CORPORATION

Inventor： Kazutaka TAMAKI ,  Hitoyoshi KURATA

IPC: H01F38/14

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025

Abstract: A power transmission device includes a power conversion circuit that outputs an alternating voltage in order to generate an alternating magnetic field and a control circuit used to control a frequency of the alternating voltage. The control circuit sets, in a predetermined frequency range, the frequency of the alternating voltage to a higher one of a first frequency at which transmission efficiency is highest and a second frequency at which a voltage generated in the power receiving device is highest, and performs power transmission.

Abstract translation: 电力传输装置包括输出交流电压以产生交变磁场的电力转换电路和用于控制交流电压的频率的控制电路。 控制电路在预定的频率范围内将交流电压的频率设定为传输效率最高的第一频率和受电装置中产生的电压最高的第二频率，并执行 电力传输。