Patent ID: 11901744
Assignee: SEIKO EPSON CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 8:
9. A control device included in a power transmitting device that contactlessly transmits power to a power receiving device, the control device comprising:
a control portion configured to:
control a power transmission portion in the power transmitting device that transmits power to the power receiving device;
cause the power transmission portion to be driven at a first frequency and a first duty during a time period having a first length, to issue a first communication data to the power receiving device; and
after causing the power transmission portion to be driven at the first frequency and the first duty, cause the power transmission portion to be driven at a second frequency that is different from the first frequency or at a second duty that is different from the first duty, during a time period having a second length that is different from the first length, to issue second communication data to the power receiving device.