| 摘要 |
PROBLEM TO BE SOLVED: To provide a multioutput-type power-supply apparatus, for parallel operation, which corrects the output unbalance between power-supply apparatuses, which surely provents the overload state of an electric-power-supply circuit and which enhances the accuracy and the reliability of the output unbalance between the power-supply apparatuses. SOLUTION: A plurality of multioutput-type power-supply apparatuses, for parallel operation, in which respective output voltages V1 to V3 are output from a plurality of output circuits 21 to 23 on the basis of electric power supplied from an electric-power supply circuit 10 are connected in parallel so as to be operated. Total input currents I11 to I15 which are supplied to the output circuits 21 to 23 from the electric-power supply circuit 10 are detected. When the total input currents I11 to I15 become large so as to be close to an overload state, the output voltages V1 to V3 from the output circuits 21 to 13 are lowered. At this point, prescribed delay times T0, T1 are held until the output voltages V1 to V3 are lowered after the total input currents I11 to I15 supplied to the output circuits 21 to 23 from the electric-power supply circuit 10 have been detected. |
