公开(公告)号：US20240079887A1

公开(公告)日：2024-03-07

申请号：US18220250

申请日：2023-07-10

Applicant: STL TECHNOLOGY CO., LTD.

Inventor： Wen-Fan Chang ,  Chun-Chieh Li ,  Jung-Nan Chien

IPC: H02J7/00

CPC classification number: H02J7/00302 ,  H02J7/00306 ,  H02J7/0031

Abstract: The present invention provides a protection circuit applied to a battery module, which includes a self-control protector, a switch element and a voltage clamping loop; the self-control protector includes a fuse unit and a heater; when the switch element receives a control signal, the switch element will be turned on; when the switch element is turned on, the voltage clamping loop provides a clamp voltage to clamp a working current passing through the self-control protector within a current range where the fuse unit can be blown; and as such, the fuse unit of the self-control protector will be blown by the working current heating the heater.

公开(公告)号：US20230143440A1

公开(公告)日：2023-05-11

申请号：US17865028

申请日：2022-07-14

Applicant: STL Technology Co., Ltd.

Inventor： Wen-Fan Chang ,  Chun-Chieh Li ,  Jung-Nan Chien ,  Chun-Wei Ma

IPC: H02J7/00

CPC classification number: H02J7/0031 ,  H02J7/0049 ,  H02J7/0071 ,  H02J7/007182 ,  H02J2207/20

Abstract: This disclosure provides a battery management system. The battery management system comprises a buck converter, a discharge loop, and a microprocessor. The microprocessor comprises a battery status monitoring circuit, a timer, and a controller. When the status of the battery is in a static state, the timer starts counting a time. If the time counted by the timer is greater than or equal to a time threshold, the controller controls that the buck converter executes a bucking to an output voltage of the battery, and then controls that the discharge loop executes a discharging to the battery. Accordingly, when the status of the battery is in a static state, the battery capacity can be discharged to a safe value moderately, so that the safety of the long-storage of the battery can be ensured, and the life of the battery can be prolonged.