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.
Boost converter
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A boost converter or step-up converter is a DC-to-DC converter that increases voltage, while decreasing current, from its input to its output.
Switched-mode power supply
…but still provides a significant improvement in efficiency over a linear regulator. Different switching configurations are used in SMPS designs. A boost converter acts like a step-up transformer for DC signals. A buck–boost converter works in a similar manner, but yields an output voltage which is opposite in…
Low-cost converter modules: two boost and one buck.
Left is a boost converter from a TI calculator, originally generating 9 V from 2.4 V provided by two AA rechargeable cells (right is an added 9 V battery snap connector).