本文介绍了国外用电器待机功率损耗概况及其标准限制，分析了开关电源待机损耗的构成和目前常用的降低待机损耗方法。
The composing of standby power of switch mode power supply(SMPS) and normal methods for reducing it are analyzed and presented.
本文探索讨论的减小待机功率的方法有：频率折叠、周期跳空，各种启动电路的影响，以及开关损耗。
The methods for reducing standby power that will be explored in this article are: frequency foldback, skip cycle, the effect of different types of start-up circuits, and switching losses.
本文探索讨论的减小待机功率的方法有：频率折叠、周期跳空，各种启动电路的影响，以及开关损耗。
The methods for reducing standby power that will be explored in this article are: frequency foldback, skip cycle, the effect of different types of start-up circuits, and switching losses.
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