一、引言经过几年的努力,我们研制成一种新型的四极透镜脉冲电源,其最大电流值分别为220 A和530 A。目前已有104台220 A电源和28台530 A电源在北京质子直线加速器的加速腔和束流输运线上工作,运转正常,性能良好,该电源使用大功率晶体管作开关调整管。与目前国外实验室流行的同类型可控硅四极透镜电源相比,本电源具有线路简单,体积小,价格低廉,调试方便等优点。本电源没有充电电感,回收电感,附加负载电感和贮 I. INTRODUCTION After several years of efforts, we developed a new type of quadrupole lens pulse power supply, the maximum current value of 220 A and 530 A, respectively. Up to now, there are 104 220 A power supplies and 28 530 A power supplies working in the acceleration and beam transport lines of the proton linac in Beijing. The power supply is operating normally and performs well. The power supply uses high-power transistors as the switching regulator. Compared with the current type of SCR-type quadrupole lens power supply popular in foreign laboratories, the power supply has the advantages of simple wiring, small size, low price, convenient debugging and the like. The power supply without charging inductance, recovery inductance, additional load inductance and storage