High-power wireless charging device

Abstract

The invention discloses a high-power wireless charging device. The high-power wireless charging device is characterized in that a power supply accesses an LC electromagnetic resonance circuit sequentially by a bridge type rectification circuit and a high-frequency switch, an AD collection circuit collects current and voltage of the LC electromagnetic resonance circuit and then sends the current and voltage to a central processor by an RC filter circuit and a signal amplification circuit to form the transmitting end of the charging device; and a battery load accesses an electromagnetic resonance unit through a power supply management system, and the current and voltage signals of the battery load is fed back to the power supply management system by a collection unit to form the receiving end of the charging device. Due to the adoption of the circuit structure, the charging device has the advantages that 1, solving the problem that the wireless feed-back real-time property of the prior art is poor is solved by a high-voltage resonance manner; 2, the transmission distance of wireless power energy is lengthened; 3, the directivity of a magnetic field is strong, which is beneficial to distant transmission of wireless power energy; and 4, the harm on a human body is little.

Description

technical field [0001] The invention relates to the field of wireless charging, in particular to a high-power wireless charging device. Background technique [0002] Wireless charging is to charge electronic products through magnetic field loosely coupled resonance technology. The entire wireless charging system consists of two parts, one is the transmitting system connected to the power supply, and the other is the receiving system on the electronic product. As long as it is within a certain range, The power can be transmitted instantaneously from the transmitting system to the corresponding receiving system. [0003] In the prior art, electromagnetic induction is basically used in high-power wireless power transmission, and it is difficult to realize full wireless feedback control and increase of wireless power transmission power. Since the feedback signal of the load needs to be sent to the control unit in time, it is difficult to meet the real-time requirements of the w...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, electromagnetic induction is basically used in high-power wireless power transmission, which is difficult to achieve full wireless feedback control and wireless power transmission power improvement

Since the feedback signal of the load needs to be sent to the control unit in time, it is difficult to meet the real-time requirements of the wireless feedback method, and the stability of the wireless feedback is poor, resulting in unstable operation of the entire wireless charging system.

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