The full form of SMPS is Switching Mode Power Supply. It is a type of electronic power supply where a switching regulator is used in order to convert electric power in an efficient manner. It is a type of Power Supply Unit or PSU which is commonly used in computers so that voltage can be converted into the acceptable range of a computer. The electronic components of this device are capable of handling power properly. It is known for using better power conversion techniques in order to minimise overall loss of power.