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详解开关电源8大损耗
PCOND(MOSFET) = [(IP3 - IV3)/3] × RDS(ON) × D = [(IP3 - IV3)/3] × RDS(ON) × VOUT/VIN 式中,IP 和IV 分别对应于电流波形的峰值和谷值,如图3 所示。MOSFET 电流从IV 线性上升到IP,例如:如果IV 为0.25A,IP 为1.75A,RDS(ON)为0.1Ω,VOUT 为VIN/2 (D = ...
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