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亲爱的工程师，
您好!
能否给推荐一款贵公司的电源芯片或者利用电源芯片做的电路？要求：输入电压范围0—20V都行，输出DC电压-100V to -200V之间，或者-100V to -400V之间，对输出电流不做要求。
谢谢！
