Patent ID: 9369002
Filing Date: 2016-06-14
CPC Classification: H02J

Claim Text:
1. A power transmitting device, comprising: a power transmitting unit which transmits electric power at a power transmitting frequency using magnetic field resonance or electric field resonance to each of a plurality of equipment devices including a non-contact power receiving unit; a control unit which obtains change information for making a resonance frequency value of a resonance circuit of the power receiving unit of an equipment device having maximum charging power from among the plurality of equipment devices equal to a value of the power transmitting frequency, and for making a resonance frequency value or a Q value of a resonance circuit of the power receiving unit of each of other equipment devices other than the equipment device having the maximum charging power equal to a value for achieving a power receiving amount that depends on charging power of each of the other equipment devices; a power supply unit which provides the power transmitting unit with electric power to be transmitted to the plurality of equipment devices; and a communication unit which transmits to each of the plurality of equipment devices the change information corresponding to each of the plurality of equipment devices.