| 摘要 |
PURPOSE: A battery cell voltage scan circuit and a measuring method thereof are provided to reduce the number of relays which are necessary in order to measure voltage or the waveform of an individual cell even if the number of battery cells is increased. CONSTITUTION: A battery cell voltage scan circuit comprises an odd-number relay group(1), an even number relay group(2), a measuring unit(3), and a CPU(4). The odd-number relay group is respectively connected to each anode terminal of an odd-number battery cell. The even number relay group is respectively connected to each anode terminal of an even numbered turn battery cell. The measuring unit interlinks an input side to a first common-point and a second common-point. The first common-point is commonly connected to an output side of the odd number relay group. The second common-point is commonly connected to an output end of the even numbered turn relay group. The CPU controls so that one of the odd number relay group and the even number relay group is turned on and is connected to the battery cell of a measuring target.
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