Technical structure of series solid high frequency induction heating equipment

Baoding Wande Electrical Equipment Manufacturing Co., Ltd. specializes in the production of induction heating equipment, induction heating equipment is the most commonly used parallel type, series type solid high frequency welding machine main circuit structure, it is a typical AC-DC-AC frequency conversion structure. The rectifier adopts three-phase bridge thyristor phase controlled rectifier circuit, and the DC side adopts inductor and capacitor to form LC filter to meet the working requirements of voltage inverter. The voltage inverter adopts a modular parallel structure to expand the power supply. Each inverter module is a single-phase MOSFET bridge circuit, and each inverter module is connected by a high-frequency matching transformer and a series resonant slot. On the one hand, the matching transformer realizes the synthesis of power and impedance matching, and on the other hand realizes the electrical isolation of load and power supply. The whole high frequency welding machine has the advantages of compact structure, small size, convenient maintenance and low failure rate. In order to effectively and quickly protect the voltage inverter overcurrent fault, the company adopts a unique, stable and reliable overcurrent protection circuit to ensure the safe and reliable operation of the inverter.