A control unit includes multiple controllers, an intersystem communication circuit, an internal power supply circuit and a protection circuit. The controllers control a load, and are connected to individual circuit arrangements. The individual circuit arrangements are defined as systems. The intersystem communication circuit is connected between one of the systems and remainder of the systems. The internal power supply circuit is included in each system. The internal power supply circuit supplies electric power to corresponding one of the controllers and the intersystem communication circuit. The protection circuit cuts off an internal power supply line between the internal power supply circuit and the intersystem communication circuit or limits supply of the electric power to the intersystem communication circuit, in response to the occurrence of an overvoltage abnormality in which an output voltage of the internal power supply circuit is in an overvoltage state.
CONTROL UNIT
2024-08-08
Patent
Elektronische Ressource
Englisch
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