Voltage detection circuit for storage devices

摘要

A voltage detection circuit for detecting terminal-to-terminal voltages of a plurality of storage devices B1 and B2 connected in series. In the voltage detection circuit for storage devices, voltage judgement units VPL-1, VPL-2, VPH-1 and VPH-2 are provided between the terminals of the plurality of storage devices respectively, and the judgement result of the initial-stage voltage judgement unit is transmitted to the next-stage voltage judgement unit without being isolated, so that the judgement result of the final-stage voltage judgement unit is obtained.