| 摘要 |
PROBLEM TO BE SOLVED: To provide a voltage detector capable of providing a technology suitable for detecting a voltage of a battery cell, when various circuits having different power supply voltages are used in the voltage detector.SOLUTION: A voltage detector includes an analog conversion circuit, a digital conversion circuit, and a control circuit. The analog conversion circuit performs level conversion from voltages of a plurality of battery cells which configure a battery to a low voltage. The digital conversion circuit converts the low voltage output by the analog conversion circuit to a digital value. The control circuit is driven by a separately provided power supply, and controls the digital conversion circuit. The analog conversion circuit is driven by a first power supply generated from the plurality of battery cells. The digital conversion circuit is driven by a second power supply generated on the basis of a pulse signal generated by the control circuit. |
