Use Of Induction Heating Power Supply, Igbt Series

Induction heating power supply is a kind of switch type power supply equip which exploits semiconductor power device as the core component, it is a kind of equipment that makes use of the electromagnetic induction principle to convert the electric power as thermal energy. Comparing with the other traditional heating equipments, induction heating power supply has tremendous advantage, and has an extremely extensive application in the industrial production now.This topic designs a kind of induction heating power supply which uses series connected IGBTs as its switch component. Comparing with the present widespread use of parallel and series resonance induction heating power supply, it has the following advantages: safe credibility of work, controlling circuit simple, and so on. The work of the topic course is mainly divided into three parts, namely: Conceiving and choosing structure of the circuit; The design of the induction heating power supply according to the structure; And the study and research about voltage-sharing of series connected IGBTs under the circuit structure.The power supply is based on a kind of class E inverter structure. Class E . inverter is a structure working under the soft switch mode, its character is to have a very high efficiency, to the power supply equipments of providing the energy, it is also very crucial. This text gives the necessary analysis about traditional inverter, and on the foundation of traditional Class E structure, found out a kind of more simple structure of Class E inverter carrying-out circuit, at the time of conceiving topology of the circuit, considering the solution to the possible problem of voltage-sharing on series connected IGBTs, the solution gets a verification in the following experiment.According to the inverter structure, this text designs a kind of request three phase to input, output power to attain a lOkW's induction heating power supply, gives the design parameters of this system and validates it by simulation assistance. Then designs the controlling circuit of this power supply in the meantime, and in the end...