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公开(公告)号：US11444470B2
公开(公告)日：2022-09-13
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：US10797493B2
公开(公告)日：2020-10-06
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：US20190222041A1
公开(公告)日：2019-07-18
申请号：US16359451
申请日：2019-03-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xinyu Liu , Yanding Liu , Ce Liu , Pinghua Wang , Jinbo Ma
IPC: H02J7/00
Abstract: A charging circuit in a terminal, or a charging system, is respectively coupled to a charger, a terminal load, and a battery. The charging circuit includes a first adjustment circuit, a current detection circuit, a voltage detection circuit, and a control circuit. A first end of the first adjustment circuit is coupled to the charger, a second end of the first adjustment circuit is further coupled to the terminal load, a third end of the first adjustment circuit is coupled to the control circuit, and a second end of the current detection circuit is coupled to a positive electrode of the battery.
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Patent Agency Ranking
公开(公告)号：US11962176B2
公开(公告)日：2024-04-16
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
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 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：US11527883B2
公开(公告)日：2022-12-13
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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6.发明申请公开(公告)号：US20220376540A1
公开(公告)日：2022-11-24
申请号：US17810397
申请日：2022-07-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xinyu Liu , Xialing Zhang , Gang Cheng
Abstract: A terminal, a power supply method for the terminal, and a charging and discharging management circuit. The terminal includes a load circuit, a battery, and a charging and discharging management circuit. The battery is configured to supply a voltage to the load circuit. The charging and discharging management circuit is coupled to the load circuit and the battery. The charging and discharging management circuit is configured to receive an input voltage, and charge the battery after stepping down the input voltage. When the battery voltage is greater than a threshold voltage, the battery supplies a voltage to the load circuit. When the battery voltage decreases to the threshold voltage, the charging and discharging management circuit steps up the battery voltage, and outputs a stepped-up voltage to the load circuit.
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公开(公告)号：US10819127B2
公开(公告)日：2020-10-27
申请号：US16359451
申请日：2019-03-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xinyu Liu , Yanding Liu , Ce Liu , Pinghua Wang , Jinbo Ma
IPC: H02J7/00
Abstract: A charging circuit in a terminal, or a charging system, is respectively coupled to a charger, a terminal load, and a battery. The charging circuit includes a first adjustment circuit, a current detection circuit, a voltage detection circuit, and a control circuit. A first end of the first adjustment circuit is coupled to the charger, a second end of the first adjustment circuit is further coupled to the terminal load, a third end of the first adjustment circuit is coupled to the control circuit, and a second end of the current detection circuit is coupled to a positive electrode of the battery.
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公开(公告)号：US10749357B2
公开(公告)日：2020-08-18
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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