Switch mòd ekipman pou pouvwa (SMPs), ke yo rele tou switch mòd ekipman pou pouvwa oswa konvètisè switch, se yon aparèy konvèsyon enèji elektrik ki wo ak yon kalite ekipman pou pouvwa. Its function is to convert a precise voltage into the voltage or current required by the user through different forms of architecture. The input of a switching power supply is mostly an AC power supply (such as mains power) or a DC power supply, while the output is mostly a device that requires a DC power supply, such as a personal computer, and the switching power supply converts the voltage and current between the two.