POWER DISTRIBUTION DEVICE, POWER DISTRIBUTION SYSTEM, AND INRUSH CURRENT SUPPRESSING METHOD

PROBLEM TO BE SOLVED: To suppress inrush current at low cost.SOLUTION: A power distribution device is connected with a power supply unit and a plurality of electronic apparatuses. The power distribution device comprises an inrush current suppressing circuit, a control unit, a switch part, and power distribution ports. The power distribution ports are connected to the electronic apparatuses, and distribute a power supply signal to the electronic apparatuses. The inrush current suppressing circuit suppresses inrush current in a lump at a prior stage to distribute power to the electronic apparatuses. The control unit detects the moment of occurrence of the inrush current and outputs a switch changeover instruction. The switch part switches the power supply signal to a first power supply path to input the power supply signal to the inrush current suppressing circuit at the moment of occurrence of the inrush current on the basis of the switch changeover instruction. In addition, on the basis of the switch changeover instruction, when inrush current is not occurred, it switches the power supply signal to a second power supply path to get the power supply signal to circumvent the inrush current suppressing circuit.