An Improved Circuit Based on EXB841 Applicable to IGBT Induction Heating Power
EXB841 gets the shortcomings as lack of gate-voltage, excessiveness of over-current protection threshold and long soft-shutdown time etc. According to the shortages, some improved managements were given. By improving the power supply of the module, adding external gate-voltage molding circuit and changing the external zener, not only the output gate-voltage was boosted, but also the over-current protection threshold and soft-shutdown time were modified. In addition, a novel circuit was designed to latch overcurrent signal, which improved the over-current protection. The simulation proved that the improved circuit overcomes the defects of EXB841. At the end of the paper, a series resonant IGBT induction heating power was designed based on the improved driving circuit
improved circuit IGBT EXBS41 over-current protection induction heating
Nie Hui Wei Xue-ye Yuan Lei
School of Electronics and Information Engineering Beijing Jiaotong University Beijing China
国际会议
长春
英文
535-537
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）