AC input wireless charging device, system and method

Abstract

The invention discloses an AC input wireless charging device. The device comprises a wireless charging transmitting device and a wireless charging receiving device; the wireless charging transmittingdevice comprises a filter and first rectifier circuit, a first conversion circuit, multiple wireless charging transmitting coils; the wireless charging receiving device comprises a wireless charging receiving coil, a second rectifier circuit, a charging circuit, and a charging battery; the first conversion circuit comprises a PFC circuit, an LLC circuit, a first MCU processor, a second MCU processor, multiple optoo-coupler isolators, multiple electronic switches, multiple LED bicolor lights, and multiple contact switches. The charging circuit comprises a power conversion circuit, a managementchip, and a modulation circuit. The problems that an external adapter occupies excessive space and circuit structure or one charger can only charge one or two electric appliances or a wireless charging product for simultaneously charging multiple electric appliances is complex in structure, needs to repeatedly set multiple sets of conversion circuits and multiple sets of transmitting circuits, thecost is greatly increased and the price is too high are solved.

Description

technical field [0001] The present invention relates to the field of wireless charging, in particular to an AC input wireless charging device, system and method. Background technique [0002] There are many types of wireless charging products. Because the charger and the power-consuming device transmit energy through a magnetic field, there is no need for wires to connect the two. Therefore, both the charger and the power-consuming device can have no exposed conductive contacts, bringing people Great convenience. [0003] Wireless charging products on the market, such as figure 1 As shown, it generally includes an adapter, a wireless charging transmitter, and a wireless charging receiver. The adapter includes: filter and first rectification circuit, first conversion circuit, transformer, second rectification circuit, load power supply circuit, wireless charging transmitter includes: second conversion circuit, wireless charging transmitting coil, wireless charging receiver ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the external adapter takes up space, the circuit structure is too much, or a charger can only charge one or two electrical appliances or can charge multiple electrical appliances at the same time. Set of transmitting circuits, a substantial increase in cost, and too high a price

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