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刚刚的内不知道什么原因看不到,现补上!
现要设计一个实验室电源,输入AC 220V,50Hz,输出DC 电流可调0~10A,电压可调0~30V!恒流恒压!纹波小于2mV。
请问用什么方案成本低,而且效率高?最好效率达75%以上