WIRELESS POWER TRANSMITTER WITH A PLURALITY OF MAGNETIC OSCILLATORS

摘要

A power transmitter is configured to wirelessly transfer power to at least one power receiver. The power transmitter includes at least one excitation circuit configured to generate a time-varying first magnetic field in response to a time-varying electric current flowing through the at least one excitation circuit. The time-varying first magnetic field has an excitation frequency. The power transmitter further includes a plurality of magnetic oscillators. Each magnetic oscillator of the plurality of magnetic oscillators has a mechanical resonant frequency substantially equal to the excitation frequency. The plurality of magnetic oscillators is configured to generate a time-varying second magnetic field in response to the first magnetic field.

主权项

1. A power transmitter configured to wirelessly transfer power to at least one power receiver, the power transmitter comprising:
at least one excitation circuit configured to generate a time-varying first magnetic field in response to a time-varying electric current flowing through the at least one excitation circuit, the time-varying first magnetic field having an excitation frequency; and a plurality of magnetic oscillators, each magnetic oscillator of the plurality of magnetic oscillators having a mechanical resonant frequency substantially equal to the excitation frequency, the plurality of magnetic oscillators configured to generate a time-varying second magnetic field in response to the first magnetic field.