Switch mode power supply Projects for BTech and MTech

Switch mode power supply Projects List

switch mode power supply (switching-mode power supplyswitch-mode power supplyswitched mode power supplySMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a DC or AC source (often mains power) to DC loads, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switched 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.

Ideally, a switching 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 switch mode power supply. Switch-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.

Switch mode power supply


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