POWER SOURCE CONTROL SYSTEM

• Main Authors: YOSHIOKA TAKASHI, KOMIYA MITSUO
• Format: Patent
• Language: English
• Published: 22.10.1996
• Edition: 6
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONTROLLING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES; SYSTEMS FOR STORING ELECTRIC ENERGY

PURPOSE: To easily detect the abnormality of a power source by parallelly connecting the outputs of the plural power sources for redundancy, feeding the power source excluding a redundant part first at the time of feeding the power source of a device and monitoring the state. CONSTITUTION: DC power sources 1-3 whose respective outputs are parallelly connected are respectively provided with output current detection parts 4-6 and overcurrent detection signals 7-9 are sent out to a power source control part 10 when the output currents of the respective DC power sources 1-3 exceed a stipulated value. When a power source feeding sequence activation instruction is received, the power source control part 10 provided with a power source abnormality monitoring part 11 for monitoring the abnormality of the respective DC power sources 1-3 and the power source feeding/disconnection part 12 of the respective DC power sources 1-3 feeds the power sources 2 and 3 first, monitors overcurrent by the power source abnormality monitoring part 11, and when no abnormality is present, successively feeds/disconnects the power sources and monitors the abnormality. When the DC power source is a fault, since the overcurrent is not detected only when the DC power sources 2 and 3 are fed, the abnormality of the DC power source 1 is judged and reported.