Four-quadrant Key Circuit Design of Electric Vehicle Wireless Charging System

In view of the current problems in the field of wireless power transmission systems for electric vehicles, such as low charging efficiency, severe heating, slow charging speed, and strong high-frequency magnetic field radiation, in order to improve charging efficiency. Drawing on the design ideas of two-way wireless charging products for low-power appliances, a four-quadrant circuit suitable for electric vehicle wireless charging systems is proposed. The feasibility of the circuit is analyzed. The design ideas of the circuit are parameterized and how to implement it is given. Dynamic frequency tracking method. In addition to meeting the needs of wireless charging of electric vehicles, the research in this project can be extended to many fields such as medical equipment and even the military, and has broad application prospects.