A multipurpose power supply for constant current, constant voltage, and constant power applications

Area of Science:

• Electrical Engineering
• Power Electronics

Background:

• Conventional power supplies often offer limited modes (CC, CV, or CP).
• Industrial and commercial applications frequently require multiple power modes.

Purpose of the Study:

• To introduce a multipurpose power supply delivering constant current (CC), constant voltage (CV), and constant power (CP) modes.
• To design a power supply that maintains performance irrespective of load dynamics.

Main Methods:

• A novel branch-type resonant converter with three inductors and one capacitor was designed.
• Operating frequency switching was implemented to select the desired power mode (CC, CV, CP).

Main Results:

• The power supply demonstrated high efficiency: >95% in CC mode and >80% in CV and CP modes.
• A hardware prototype validated the supply's rigid and efficient operation under varying load conditions.

Conclusions:

• The developed multipurpose power supply offers a space, time, and cost-effective solution compared to individual mode supplies.
• The design provides a versatile and efficient power solution for diverse applications.