Triple input smart power supply (trisp) for desktop pc and other systems using dc as final power source

A triple input smart power supply for one or more electronic loads using DC as final power source functional from a predefined voltage range input with SPV (Solar Photo Voltaic) power provision and an automatic logic to prioritize solar, utility, and a battery in the preferred order, comprising:

• A DC-to-DC ATX power supply for providing the predefined voltage range;
• an AC-to-DC converter to generate 15V DC power supply from 230V AC using PFC techniques;
• a switching logic circuit for automatically prioritize solar, utility, and a battery in a preferred order;
• a solar panel of adequate capacity to supply power to the one or more electronic loads;
• a battery for providing power back-up to the one or more electronic loads;
• a voltage regulator and a current limited charger circuit for providing charging current to the battery;
• and
• a display unit capable of working on the predefined voltage range,
• wherein the switching logic circuit intelligently prioritize solar, utility, and the battery ensuring seamless changeover between the triple input sources to provide an uninterrupted power supply to the one or more electronic loads.