Smps

SMPS
SMPS is an electronic power supply unit (PSU) that incorporates a switching regulator. An SMPS actively switches a transistor between full saturation and full cut-off at a high rate. The resulting rectangular waveform is then passed through a low-pass filter (typically an inductor and capacitor) to achieve an approximated output voltage. Advantages of this method include smaller size, better power efficiency and lower heat generation.