Electrical transmission or interconnection systems – Switching systems – Switch actuation
Reexamination Certificate
2011-04-12
2011-04-12
Deberadinis, Robert L. (Department: 2836)
Electrical transmission or interconnection systems
Switching systems
Switch actuation
Reexamination Certificate
active
07923870
ABSTRACT:
A noncontact power transmission system having a power transmitting device including a primary coil and a power receiving device including a secondary coil, the primary coil and the secondary coil being electromagnetically coupled to each other and the power transmitting device configured to transmit electric power to the power receiving device, wherein the secondary coil contains a magnetic substance, the power transmitting device has a feeding section for feeding power to the primary coil and a self inductance detection section for detecting a change in the self inductance of the primary coil immediately after starting the feeding to the primary coil, wherein a feeding operation of the feeding section immediately after starting the feeding is determined based on a detection result of the self inductance detection section.
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DeBeradinis Robert L.
Oliff & Berridg,e PLC
Seiko Epson Corporation
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