US 8,712,481 B2 · Electric power supply system and electric power supply system for motor vehicle

Abstract

To provide for a movable electronic device a power receiving device that when charging a battery, simplifies charging of the battery from a power feeder, which is a power supply means, and does not have faults due to an external factor relating to a relay terminal, or damage of the relay terminal, that are caused by directly connecting the battery and the power feeder, and further, to provide an electronic device including the power receiving device. An antenna circuit and a booster antenna for supplying electric power are provided in a movable electronic device. The antenna circuit receives a radio signal such as an electromagnetic wave via the booster antenna, and electric power that is obtained through the receiving of the radio signal is supplied to the battery through a signal processing circuit.

Claims20

Dependent claims

An electric power supply system for motor vehicle comprising:

an antenna circuit in a motor vehicle;
an antenna comprised in the antenna circuit;
a booster antenna configured to be provided in the motor vehicle and to be electromagnetically coupled to the antenna by magnetic field;
a signal processing circuit electrically connected to the antenna circuit;
a battery electrically connected to the signal processing circuit;
and
a spark plug electrically connected to the signal processing circuit,
wherein the antenna comprised in the antenna circuit is configured to receive, via the booster antenna, a radio signal emitted by a power feeder,
wherein the antenna circuit, the signal processing circuit, the battery and the spark plug are parts of the motor vehicle,
wherein the battery is charged by the radio signal emitted by the power feeder and processed by the signal processing circuit, and
wherein the spark plug is configured to be ignited by electric power stored in the battery and to start up a combustion engine of the motor vehicle.

8 more elements

Dependencies are inferred from the claim text.

Electric power supply system and electric power supply system for motor vehicle

Life of this patent

Electric power supply system and electric power supply system for motor vehicle

Life of this patent

Abstract

Claims20