| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a status detector for a storage battery wherein the result of status detection on the storage battery and history data such as the state of use stored in a built-in nonvolatile memory are read out or deleted with a smaller parts count. SOLUTION: By inputting a prescribed voltage waveform into a signal line of this status detector connected to a terminal of the storage battery, history data on the status of the storage battery and on the state of use thereof stored in the built-in nonvolatile memory are output to the exterior of the status detector by a means such as optical signal outputting. Further, history information in the nonvolatile memory is deleted by means of a separately set voltage waveform. Since a command signal input line to the nonvolatile memory is also used as a signal line between the storage battery and the status detector, there is no necessity to provide an input port for a command signal independently of the signal line, reducing a parts count to make it possible to provide a small-sized and low-cost status detector. COPYRIGHT: (C)2008,JPO&INPIT
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