A switched-mode power supply (switching-mode power supply, switch-mode power supply, switched power supply, switching power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.

Like other power supplies, a switching power supply transfers power from a DC or AC source to DC loads, such as a LED light, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode power supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. A hypothetical ideal switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply.

MEAN WELL is one of the world’s Top manufacturers dedicated to standard power supply products. Enocore distribute and wholesale Mean Well switching power supplies since 2011. In the begining we mainly work on LED drivers with our LED components and LED light housings, but late we also market other types of Mean Well swithing mode power supplies.