Patent ID: 7952228

Claim:
A power supply apparatus converting a primary power supply voltage of electric power supplied from a primary power source into supply voltages and outputting the electric power with each of the supply voltages, comprising: a plurality of primary power supplies converting the primary power supply voltage into intermediate voltages; a secondary power supply converting the intermediate voltages converted by said primary power supply into the supply voltages and outputting the supply voltages; and a timing adjuster inputted thereto the power converted into the intermediate voltages from said plural primary power supplies to perform timing adjustment to absorb a difference in start timing between said plural primary power supplies, and causing said secondary power supply to output the supply voltages, said tinning adjuster comprising a plurality of timing signal output sections provided for each of said plural primary power supplies, each of said timing signal output sections being able to output a timing signal on the basis of the power inputted from the corresponding primary power supply, each of said plural timing signal output sections being supplied with driving power from another one of said primary power supplies different from the corresponding primary power supply to operate, each of said plural timing signal output sections comprising a combining section combining plural driving power supplied from said plural primary power supplies, said timing signal output section being supplied with the driving power combined by said combining section.