A switched-mode power supply, also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching
Electric power conversion
…Inverter Switched-mode power supply, SMPS (inverter stage) Rotary converter…
Stand-alone switched-mode power supply
An adjustable switched-mode power supply for laboratory use
This charger for a small device such as a mobile phone is an off-line switching power supply with a European plug, mainly consisting of an opto-coupler, a rectifier and two active devices.