Patent ID: 11962174
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A battery management system, comprising: a main circuit, wherein the main circuit comprises a power supply module, a first switch module, a load module, and a second switch module; and the power supply module, the first switch module, the load module, and the second switch module are serially-connected; and a protection circuit, wherein the protection circuit comprises a first protection module and a freewheeling module, the first protection module is connected in parallel to the first switch module in the main circuit of the battery management system, the freewheeling module is connected in parallel to the load module in the main circuit of the battery management system, and the first switch module is a switching transistor, wherein:
the first protection module is configured to switch the first protection module to a charging state when the first switch module is turned off, so as to stabilize a voltage between a first terminal of the first switch module and a second terminal of the first switch module; and
the freewheeling module is configured to switch on when the first switch module is turned off, so as to stabilize a voltage between the first switch module and the second switch module in the main circuit of the battery management system.