Practical wireless charger design [with circuit diagram]

· The basic function is to transmit H power H to the battery in H wireless H mode through the coil. Simply place the battery and receiving device on the charging platform to charge it. Experimental proof. Although the system cannot be charged invisibly. However, it has been possible to place multiple calibrators on the same charging platform to charge at the same time. Eliminate the hassle of wiring.

　　1 Principle and structure of wireless charger

The wireless charging system mainly uses the principle of electromagnetic induction, and realizes the transmission of energy through energy coupling through coils. As shown in the figure1As shown in the system, when the system is working, the input terminal converts the AC mains power into DC power through the full-bridge rectification circuit, or uses24VThe DC end directly supplies power to the system. byH power management H module after the output of DC power passes2MActive crystal oscillator inverter converts into high-frequency alternating current supply primary winding. Pass2individualsThe H inductor H coil coupling energy, and the current output by the secondary coil is converted into DC power through the receiving conversion circuit to charge the battery.

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