Power supply unit and lighting device for vehicle

摘要

A power supply unit comprises: a voltage output section for supplying a voltage to a plurality of loads connected in parallel with each other; and a plurality of output side coils provided respectively corresponding to the plurality of loads, the plurality of output side coils being trans-connected with each other, the plurality of output side coils being connected with the corresponding loads in series. An electric current to be supplied from the voltage output section to the corresponding load flow in each output side coil.