Patent ID: 9553449
Date: 2017-01-24
CPC Classifications: H02J,H02M,H04W

Claim:
1. A power supply apparatus comprising: a plurality of input ports configured to receive input of electric power from a plurality of power sources, respectively; a charge and discharge circuit configured to receive the input electric power to be charged and discharged so as to generate electric power to be supplied to a load circuit; a plurality of switching circuits, each provided for the respective input ports, configured to individually connect between the respective input ports and the charge and discharge circuit; a detection unit configured to detect a voltage applied to the load circuit; and a control circuit configured to perform control on the plurality of switching circuits so as to connect the plurality of input ports to the charge and discharge circuit in sequence one by one for each cycle and make, based on a detected voltage, connection time period in a current cycle to the charge and discharge circuit and connection time period in a previous cycle to the charge and discharge circuit different.