非接触給電システム

Japanese Patent JP7124846

B2

To control a power supply to a power transmission coil in accordance with positions of the power transmission coil and a power reception coil.SOLUTION: A power supply device 100 includes a power transmission circuit 130 configured to transmit AC power and a power transmission resonator circuit 110 having a power transmission coil 112. The power reception device 200 includes a power reception resonator circuit 210 having a power reception coil 212. A resonant frequency of the power transmission resonator circuit 110 and the power reception resonator circuit 210 is any one frequency of a first resonant frequency frp and a second resonant frequency frr higher than the first resonant frequency frp, and is set to a frequency that deviates from the reference resonance frequency frn of the power transmission resonator circuit alone by a predetermined deviation frequency fdv or more. The first resonant frequency frp may be generated in a state of a predetermined coupling coefficient between the power transmission coil 112 and the power reception coil 212. A driving frequency fd of the AC power is set to a frequency set as the resonant frequency of the power transmission resonator circuit 110 and the power reception resonator circuit 210 among the first resonant frequency frp and the second resonant frequency frr.SELECTED DRAWING: Figure 2

Obayashi Kayo
Yoshihisa Yamaguchi

JP2020099782A

August 24, 2022

June 09, 2020

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株式会社デンソー

H02J50/12; H02J7/00; H02J50/40

JP2018186603A
JP2019013144A
JP2012178916A
JP2013085350A
JP2015109762A

Patent Attorney Corporation Meisei International Patent Office

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