| 摘要 |
A service life controller for power unit which can prolong the service life of a plurality of power units as a whole by making the deteriorating states of the power units nearly uniform. The controller is provided with power units (1a-1c), a common load (2) which is supplied with electric power from each power unit, a temperature detecting means (6) which detects the internal temperature of each power unit, an output current control means (5) which controls the output current of each power unit, and a service life monitoring means (3) which makes the internal temperatures of the power units nearly uniform by decreasing the output currents of power units having higher internal temperatures and increasing the output currents of power units having lower internal temperatures when a difference occurs among the internal temperatures of the power units.
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