What is SMPS?
SMPS or Switched Mode Power Supply transfers electric power from a source to the load efficiently using a switching regulator by converting the characteristics of current and voltage. It incorporates a Pass transistor that switches very fast between the on and off states to minimize energy waste. It regulates the output power by varying the on to off time using minimum voltage so that the efficiency is very high. Moreover, it provides a well regulated power to the load irrespective of input variations.