Power supply
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A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, curre
A simple general-purpose desktop power supply used in electronic labs, with power output connector seen at lower-left and power input connector (not shown) located at the rear
Interior of high-end linear power supply with toroidal mains transformer.
A rackmount, adjustable regulated DC power supply
Electronic bench power supply unit with "banana connector" output
Switched-mode power supply
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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
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.
Zero-voltage switched-mode power supplies require only small heatsinks as little energy is lost as heat. This allows them to be small. This ZVS can deliver more than 1 kilowatt. Transformer is not shown.