| 摘要 |
A method of controlling an electric power source apparatus including an electric power converter circuit which converts an output of an electric power source into DC or AC output and load connector terminals across which is applied an output of said converter circuit, which includes the steps of detecting a waveform of the load voltage across the load connection terminals after the output of the electric power converter circuit is stopped when an overcurrent flows through the load connection terminals, of judging a cause due to which the overcurrent flows, and of controlling said converter circuit according to the result of the judgement, wherein the electric power converter circuit is kept stopped when it is judged that the overcurrent is caused by an increase in the load and the electric power converter is so controlled that the waveform of the voltage applied across the load connection terminals from the electric power converter circuit is consistent with the waveform of the voltage detected by the voltage waveform detection step when it is judged that the overcurrent is caused by a voltage applied from another power source.
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