Patent ID: 11862998
Assignee: HITACHI ASTEMO, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  G | IPC H

Claim 6:
7. An integrated circuit mounted on a cell controller that is connected to a plurality of secondary batteries and performs balancing for adjusting voltages of the plurality of secondary batteries, the integrated circuit comprising:
a main timer that measures an elapsed time for stopping the cell controller; and
a stop management unit that stops the cell controller when the main timer is abnormal,
wherein the main timer and the stop management unit operate by receiving power supplied from a power supply different from a control unit that controls the cell controller,
wherein the stop management unit includes a sub-timer that is provided separately from the main timer and measures the elapsed time, and
the cell controller stops when the elapsed time measured by the main timer reaches a balancing time set by the control unit, or when the elapsed time measured by the sub-timer reaches a predetermined stop time longer than the balancing time.