Wireless power transmission system

摘要

A power transmitting apparatus includes an active electrode, a passive electrode, a voltage generating circuit that applies a voltage between the active electrode and the passive electrode, and a reference potential electrode connected to a reference potential. A power receiving apparatus includes an active electrode, a passive electrode, a secondary battery connected between the active electrode and the passive electrode, and a reference potential electrode connected to a reference potential. Power is transmitted from the power transmitting apparatus to the power receiving apparatus as a result of the respective electrodes facing each other and being capacitively coupled to each other when the power receiving apparatus is mounted to the power transmitting apparatus.

主权项

1. A wireless power transmission system comprising:
a power transmitting apparatus including:
a power transmitting side active electrode,a power transmitting side passive electrode,a voltage generating circuit configured to apply a voltage between the power transmitting side active electrode and the power transmitting side passive electrode, anda power transmitting side reference potential electrode coupled to a reference potential of the power transmitting apparatus; and a power receiving apparatus including:
a power receiving side active electrode,a power receiving side passive electrode,a load circuit coupled between the power receiving side active electrode and the power receiving side passive electrode, anda power receiving side reference potential electrode connected to a reference potential of the power receiving apparatus, wherein, when the power receiving apparatus is mounted to the power transmitting apparatus, the power transmitting side passive electrode is adjacent to the power receiving side passive electrode, the power transmitting side reference potential electrode is adjacent to the power receiving side reference potential electrode, and the power transmitting side active electrode is adjacent to the power receiving side active electrode face and capacitively coupled to each other, whereby power is transmitted from the power transmitting apparatus to the power receiving apparatus.