| 摘要 |
A protection of battery system having battery cells Cell 1~ Cell 3 , FET switches SW 1 , SW 2 that are connected to the high-side path and control on/off state of the path, as well as fuse F 1 for cutting said path, primary protection circuits 31~34 that detect abnormalities in charging/discharging of the battery cells and turn the FET switches off, and secondary protecting controller 38 that detect abnormalities in charging/discharging of the battery cells and controls the operation of fuse F 1 . Secondary protecting controller 38 controls fuse F 1 if there is no tendency to a decrease in abnormalities after a prescribed period of time after control of the FET switch. |
