Series Battery Pack Bypass Switching With Staggered MOSFET Turn-On

The patent applies preliminary action by setting different turn-on moments for the first and second switches before actual operation. The controller is configured to turn on the first switch at a first moment and the second switch at a second moment that is different from the first moment. This preliminary timing arrangement prevents simultaneous turn-on and potential short circuits while maintaining the parallel MOS transistor configuration for high current capacity.

The patent applies segmentation by dividing each switch (first switch and second switch) into multiple MOS transistors connected in parallel. Instead of using a single MOS transistor that would be limited in current capacity, the system uses multiple transistors (e.g., four MOS transistors per switch) working together to handle high current while maintaining manageable device complexity through modular arrangement.

The patent applies preliminary anti-action by implementing a control mechanism that actively prevents the harmful condition of simultaneous switch turn-on. The controller is specifically configured to turn on the first switch at a first moment and the second switch at a second moment different from the first moment, creating a timing-based protective action that counteracts the potential short circuit before it can occur, while still allowing high power handling through sequential operation.