WIRELESS CHARGING SYSTEM

摘要

A wireless charging system includes a power transmission unit for transmitting power and a power reception unit for receiving the power transmitted from the power transmission unit in a non-contact manner and supplying the power to a receiving load. The transmission unit includes a power transmission coil for generating a magnetic field based on an alternating voltage supplied. The power reception unit includes a power reception coil for generating an induction voltage by electromagnetic induction from the magnetic field generated by the power transmission coil, a rectifying unit for rectifying and smoothing the induction voltage generated by the power reception coil, and a voltage step-down unit for stepping down a direct voltage outputted from the rectifying unit. A winding ratio of the power transmission coil and the power reception coil is 1:n where n is an integer larger than 1.

主权项

1. A wireless charging system comprising:
a power transmission unit for transmitting power; and a power reception unit for receiving the power transmitted from the power transmission unit in a non-contact manner and supplying the power to a receiving load, wherein the transmission unit includes a power transmission coil for generating a magnetic field based on an alternating voltage supplied, the power reception unit includes:
a power reception coil for generating an induction voltage by electromagnetic induction from the magnetic field generated by the power transmission coil;a rectifying unit for rectifying and smoothing the induction voltage generated by the power reception coil; anda voltage step-down unit for stepping down a direct voltage outputted from the rectifying unit, a winding ratio of the power transmission coil and the power reception coil is 1:n where n is an integer larger than 1.