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请问MC33063做升压电路时是否允许空载?



当电路空载时!输出电压高达48V左右

更换了R7=200k  R11=11K C10=470uF后,第一次上电是24V 电容充满电的情况下 断电后立刻再上电 电压又升到了48V左右