POWER SEPPLY DEVICE

摘要

The present invention relates to a power supply device which includes an SEPIC/ZETA converter which includes an energy storage unit and a power passing unit which transmits energy stored in the energy storage unit of the SEPIC/ZETA converter to a load terminal. The present specification provides the power supply device capable of improving the efficiency of a circuit system by reducing a capacitor ripple voltage and an inductor ripple current. The present specification provides the power supply device capable of reducing a conduction loss and a switching loss of a switch device.