公开(公告)号：US20210057902A1

公开(公告)日：2021-02-25

申请号：US16550147

申请日：2019-08-23

Applicant: GETAC TECHNOLOGY CORPORATION

Inventor： Li-Shing Chen ,  Yng-Wei Lee

IPC: H02H3/32 ,  H02H1/00

Abstract: A power protection method for an electronic device includes supplying power to an electronic device through a power supply path, detecting a positive current of the power path, detecting a negative current of the power path, comparing a current amount of the positive current with a current amount of the negative current, and disconnecting the power path when the current amount of the positive current is not equal to the current amount of the negative current.

公开(公告)号：US20220209548A1

公开(公告)日：2022-06-30

申请号：US17401409

申请日：2021-08-13

Applicant: Getac Technology Corporation

Inventor： LI-SHING CHEN ,  Yng-Wei Lee

IPC: H02J7/00

Abstract: A charging method includes detecting whether two battery modules are balanced, simultaneously charging the two battery modules by a first charging current when the two battery modules are balanced, and executing a specific charging procedure when the two battery modules are not balanced. The step of executing the specific charging procedure includes charging by the first charging current a first battery module between the two battery modules that is not balanced and disconnecting the other between the two battery modules, and simultaneously charging the two battery modules by a second charging current upon the first battery module reaching balance, wherein the second charging current is less than the first charging current.

公开(公告)号：US12218541B2

公开(公告)日：2025-02-04

申请号：US17591326

申请日：2022-02-02

Applicant: Getac Technology Corporation

Inventor： Li-Shing Chen ,  Yng-Wei Lee

IPC: H02J7/00

Abstract: A battery safety management procedure applicable to a battery safety management system is provided. The battery safety management system includes a controller, storage, and battery. The battery safety management procedure is stored in the storage and executed by the controller to perform steps of: determining whether a power level of the battery is greater than or equal to a power level threshold and determining whether a power storage time is greater than or equal to a time threshold; and performing a discharging procedure when the power level of the battery is greater than or equal to the power level threshold, and the power storage time is greater than or equal to the time threshold. Time control and power level control prevents the battery from being in a prolonged state of high power level to reduce the chance of battery swelling, leaks, abnormalities, and damage, thereby extending battery service life.

公开(公告)号：US20240297523A1

公开(公告)日：2024-09-05

申请号：US18242605

申请日：2023-09-06

Applicant: Getac Technology Corporation

Inventor： Cheng-Han Tsai ,  Yng-Wei Lee

IPC: H02J7/00

CPC classification number: H02J7/00712 ,  H02J7/0013 ,  H02J7/0029 ,  H02J7/0047

Abstract: A charging method includes detecting a system power, confirming that a hybrid power operation is executed when the system power is not less than a preset power and a hybrid power mechanism is turned on, forcibly disabling a timing operation when the hybrid power operation is executed, confirming that a charging operation is executed when the system power is less than the preset power and the hybrid power mechanism is turned on, starting the timing operation to accumulate a charging time when starting to execute the charging operation, and forcibly stopping the charging operation when the charging time is longer than a preset time.

公开(公告)号：US20240297508A1

公开(公告)日：2024-09-05

申请号：US18374814

申请日：2023-09-29

Applicant: Getac Technology Corporation

Inventor： Li-Shing Chen ,  Yng-Wei Lee ,  Chen-Kuo Yuan

IPC: H02J7/00

CPC classification number: H02J7/0025 ,  H02J7/0016 ,  H02J7/00712

Abstract: An electronic device includes a system circuit, a power connector, a path selection circuit, a plurality of battery connectors, a plurality of series circuits, and a control circuit. The power connector is suitable for receiving power. The path selection circuit is coupled to the system circuit and the power connector. The battery connectors are respectively suitable for coupling a plurality of batteries. The series circuits respectively correspond to the battery connectors, and each series circuit is connected between the corresponding battery connector and the path selection circuit. Each series circuit includes: a charging switch, a battery switch and a discharging path. In a sequential discharge mode, the control circuit controls the series circuits to turn on the battery switch thereof in turn and controls the path selection circuit to connect the series circuits to the system circuit. The remaining battery switches and all charging switches remain off.