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公开(公告)号：US20240332995A1
公开(公告)日：2024-10-03
申请号：US18599527
申请日：2024-03-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
CPC classification number: H02J7/0031 , H01M10/425 , H01M10/46 , H02J7/0029 , H02J7/00304 , H02J7/0045 , H02J7/34 , H01M2010/4271 , H02J7/00302 , H02J7/00306 , H02J7/00308 , H02J7/00309
Abstract: Example batteries, terminals, and charging systems are described. One example battery includes a battery charging port, a battery discharging port, a battery negative port, an overcurrent protection element, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port is connected to a positive electrode of the electrochemical cell. The control switch is connected in series between a negative electrode of the electrochemical cell and the battery negative port. The protection integrated circuit is connected in parallel to two ends of the electrochemical cell. The protection integrated circuit is further connected to the control switch so as to send a control signal to the control switch. In addition, the overcurrent protection element is connected in series between the battery discharging port and the positive electrode of the electrochemical cell. The battery provided in the present application has both a charging path and a discharging path.
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公开(公告)号：US20200350772A1
公开(公告)日：2020-11-05
申请号：US16935828
申请日：2020-07-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
Abstract: Example batteries, terminals, and charging systems are described. One example battery includes a battery charging port, a battery discharging port, a battery negative port, an overcurrent protection element, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port is connected to a positive electrode of the electrochemical cell. The control switch is connected in series between a negative electrode of the electrochemical cell and the battery negative port. The protection integrated circuit is connected in parallel to two ends of the electrochemical cell. The protection integrated circuit is further connected to the control switch so as to send a control signal to the control switch. In addition, the overcurrent protection element is connected in series between the battery discharging port and the positive electrode of the electrochemical cell. The battery provided in the present application has both a charging path and a discharging path.
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公开(公告)号：US20220376521A1
公开(公告)日：2022-11-24
申请号：US17880288
申请日：2022-08-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
Abstract: Example devices are described. One example device includes a battery. The battery includes a battery charging port, a battery discharging port, a battery negative port, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port and the battery discharging port are ports independent of each other. The battery charging port is connected to a first electrode of the electrochemical cell, and a second electrode of the electrochemical cell is connected to a first end of the control switch, and a second end of the control switch is connected to the battery negative port. The protection integrated circuit is connected in parallel to electrodes of the electrochemical cell, and the protection integrated circuit is further connected to a third end of the control switch. The battery discharging port is connected to the first electrode of the electrochemical cell.
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公开(公告)号：US20190222039A1
公开(公告)日：2019-07-18
申请号：US16359061
申请日：2019-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
Abstract: An example battery, a terminal, or a charging system can include a battery charging port, a battery discharging port, a battery negative port, an overcurrent protection element, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port is connected to a positive electrode of the electrochemical cell, the control switch is connected in series between a negative electrode of the electrochemical cell and the battery negative port, the protection integrated circuit is connected in parallel to two ends of the electrochemical cell, and the protection integrated circuit is further connected to the control switch, so as to send a control signal to the control switch. In addition, the overcurrent protection element is connected in series between the battery discharging port and the positive electrode of the electrochemical cell.
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公开(公告)号：US20190068068A1
公开(公告)日：2019-02-28
申请号：US16172082
申请日：2018-10-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ce LIU , Zhixian WU
Abstract: A resonant power converter and a frequency tracking method for a resonant power converter are disclosed to determine a resonant status of the resonant power converter by sampling a secondary current, thereby controlling frequency of a drive signal. Therefore, the frequency of the drive signal tracks resonant frequency of the resonant power converter. The resonant power converter includes an inverter branch, which connected to the inverter branch, a transformer connected to the resonant branch, and a rectification and filtering branch connected to the transformer. A primary side of the transformer is connected to the resonant branch, and a secondary side of the transformer is connected to the rectification and filtering branch. A detection branch is connected to both the secondary side of the transformer and the rectification and filtering branch.
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Patent Agency Ranking
公开(公告)号：US20230090857A1
公开(公告)日：2023-03-23
申请号：US17992216
申请日：2022-11-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Yanding LIU , Ce LIU , Pinghua WANG , Yong CAO
Abstract: A battery protection apparatus power protection apparatus is configured to protect an electrochemical cell connected to a load, and includes a protection IC, a switching transistor group, and a sampling resistor. The protection IC includes two power input terminals respectively connected to positive and negative electrodes of the electrochemical cell, and an operational amplifier, where the operational amplifier includes a positive input pin, a negative input pin, and an output pin. The switching transistor group is connected between the negative electrode of the electrochemical cell and the load, and is configured to control turn-on and turn-off of a charge and discharge circuit of the electrochemical cell. The sampling detection resistor Rs is serially connected between the sampling circuit detection terminal and the output pin, where the main circuit detection terminal is connected to the positive input pin, and the sampling circuit detection terminal is connected to the negative input pin.
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公开(公告)号：US20230018211A1
公开(公告)日：2023-01-19
申请号：US17830153
申请日：2022-06-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ce LIU , Xujun LIU , Yanding LIU , Yunfeng LIU , Jinbo MA
Abstract: A charging method, a terminal, a charger, and a system, includes: obtaining, by a terminal, a charging mode supported by a charger connected to the terminal; when the charging mode supported by the charger includes an open-loop fast charging mode, detecting, by the terminal, whether both the terminal and the charger are in an open loop state; when both the terminal and the charger are in the open loop state, sending, by the terminal, an open-loop fast charging instruction to the charger; and receiving, by the terminal, a voltage and a current that are transmitted by the charger according to the open-loop fast charging instruction, and performing charging in the open-loop fast charging mode. When determining that the charger supports charging in the open-loop fast charging mode, the terminal is adjusted to the open loop state to perform charging, so as to shorten a charging time and improve user experience.
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公开(公告)号：US20200220347A1
公开(公告)日：2020-07-09
申请号：US16825332
申请日：2020-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Yanding LIU , Ce LIU , Pinghua WANG , Yong CAO
IPC: H02H7/18 , H02H1/00 , H02J7/00 , G01R19/165
Abstract: A power protection apparatus includes a protection integrated circuit (IC), a switch transistor group, and a sampling resistor. The protection IC is respectively connected to a positive electrode and a negative electrode of the cell and includes a mirror current input port, a mirror current output port, an operational amplifier, a voltage regulation switch transistor, and a charge-discharge protection circuit. The operational amplifier includes a positive input pin, a negative input pin, and an output pin. The switch transistor group is connected between the positive electrode of the cell and the load and is configured to turn on or turn off a charge-discharge loop of the cell, and the at least one control circuit is connected to the at least one charge-discharge protection circuit of the protection IC and is configured to receive a control signal of the protection IC to control the switch transistor group to be turned off to implement abnormity protection of the cell.
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公开(公告)号：US20200220346A1
公开(公告)日：2020-07-09
申请号：US16825061
申请日：2020-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Yanding LIU , Ce LIU , Pinghua WANG , Yong CAO
Abstract: A battery protection apparatus power protection apparatus is configured to protect an electrochemical cell connected to a load, and includes a protection IC, a switching transistor group, and a sampling resistor. The protection IC includes two power input terminals respectively connected to positive and negative electrodes of the electrochemical cell, and an operational amplifier, where the operational amplifier includes a positive input pin, a negative input pin, and an output pin. The switching transistor group is connected between the negative electrode of the electrochemical cell and the load, and is configured to control turn-on and turn-off of a charge and discharge circuit of the electrochemical cell. The sampling detection resistor Rs is serially connected between the sampling circuit detection terminal and the output pin, where the main circuit detection terminal is connected to the positive input pin, and the sampling circuit detection terminal is connected to the negative input pin.
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公开(公告)号：US20190089170A1
公开(公告)日：2019-03-21
申请号：US16197471
申请日：2018-11-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ce LIU , Xujun LIU , Yanding LIU , Yunfeng LIU , Jinbo MA
IPC: H02J7/00
Abstract: A charging method, a terminal, a charger, and a system, includes: obtaining, by a terminal, a charging mode supported by a charger connected to the terminal; when the charging mode supported by the charger includes an open-loop fast charging mode, detecting, by the terminal, whether both the terminal and the charger are in an open loop state; when both the terminal and the charger are in the open loop state, sending, by the terminal, an open-loop fast charging instruction to the charger; and receiving, by the terminal, a voltage and a current that are transmitted by the charger according to the open-loop fast charging instruction, and performing charging in the open-loop fast charging mode. When determining that the charger supports charging in the open-loop fast charging mode, the terminal is adjusted to the open loop state to perform charging, so as to shorten a charging time and improve user experience.
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