Electric power supply system

Abstract

There is provided an electric power supply system in which electric power is delivered from one electric power unit to load or the other electric power unit and can control and monitor the other electric power unit by one electric power unit. An electric source bus is built up by connecting an output line 5 of a DC-DC converter 2 to each of POL converters 6a, 6b, 6c. Loads 7a, 7b are connected to each of outputs of the POL converter 6a, 6b, 6c. An electric power unit 1 delivers electric power to the POL converters 6a, 6b, 6c by means of the DC-DC converter 2 and besides has functions to control and monitor statuses of the POL converters 6a, 6b, 6c. From a high-order system 10, a sequence program 20 and a monitoring program 21 can be rewritten which fulfill the functions of controlling and monitoring.

Dependencies are inferred from the claim text.