CAJ | 학술논문

　　得到三相对称电源的最常用方法是与供电网络连接，为解决这种局限性，设计一种单相电源到三相电源的转换电路，由ICL8038产生正弦信号，经过RC移相，再分别运放调压、功率放大，得到三相工频电源。仿真结果证明：该电路效率高、带负载能力强，适用于学校实验室、电力机车辅助电源装置，也可做为养路机械化和沿线其他小容量动力负荷电源装置。
　　득도삼상대칭전원적최상용방법시여공전망락련접，위해결저충국한성，설계일충단상전원도삼상전원적전환전로，유ICL8038산생정현신호，경과RC이상，재분별운방조압、공솔방대，득도삼상공빈전원。방진결과증명：해전로효솔고、대부재능력강，괄용우학교실험실、전력궤차보조전원장치，야가주위양로궤계화화연선기타소용량동력부하전원장치。
The most common method of getting three-phase symmetrical power supply is to connect power supply network. In order to get rid of this limitation,a circuit converting single-phase power source to three-phase one was designed in this pa-per,by which three-phase variable frequency power supply was achieved after the sine signal generated by ICL8038 was pro-cessed by the RC phase shift,operational amplification and power amplification respectively. The simulation results prove that the circuit has the advantages of high efficiency and strong load capacity,and can be used in the school laboratory,electric loco-motive auxiliary power supply device and power supply device for small capacity power load of road maintenance mechanization.