(US6211681-B1)   NOVELTY - The power source monitoring apparatus has a detector which detects a voltage and a current of the load device, the subject power source and a non-subject power source which consists of the electric power sources except the subject power source. A diagnosing device diagnoses each subject power source for an abnormality on the basis of an output of the detector, while the electric system is placed in a power supply state an electric power is permitted to be supplied from only the subject power source to the load device.    USE - For monitoring electric power sources particularly for a motor vehicle.    ADVANTAGE - Correctly monitors several electric power sources connected to a load device, without an influence of the other power source or sources on the state of the subject electric power source or sources.    (JP2001045602-A)   NOVELTY - The power source monitoring apparatus has a detector which detects a voltage and a current of the load device, the subject power source and a non-subject power source which consists of the electric power sources except the subject power source. A diagnosing device diagnoses each subject power source for an abnormality on the basis of an output of the detector, while the electric system is placed in a power supply state an electric power is permitted to be supplied from only the subject power source to the load device.    USE - For monitoring electric power sources particularly for a motor vehicle.    ADVANTAGE - Correctly monitors several electric power sources connected to a load device, without an influence of the other power source or sources on the state of the subject electric power source or sources.    (CN1279176-A)   NOVELTY - The power source monitoring apparatus has a detector which detects a voltage and a current of the load device, the subject power source and a non-subject power source which consists of the electric power sources except the subject power source. A diagnosing device diagnoses each subject power source for an abnormality on the basis of an output of the detector, while the electric system is placed in a power supply state an electric power is permitted to be supplied from only the subject power source to the load device.    USE - For monitoring electric power sources particularly for a motor vehicle.    ADVANTAGE - Correctly monitors several electric power sources connected to a load device, without an influence of the other power source or sources on the state of the subject electric power source or sources.