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1. 发明公开

US20230268757A1 CIRCUIT DEVICE AND ELECTRONIC APPARATUS 审中-公开
公开(公告)号：US20230268757A1
公开(公告)日：2023-08-24
申请号：US18170908
申请日：2023-02-17
申请人： SEIKO EPSON CORPORATION
发明人： Masaya Ninomiya
IPC分类号： H02J7/00
CPC分类号： H02J7/00714
摘要： A circuit device includes a current source circuit, a first charging circuit, a second charging circuit, and a control circuit. The first charging circuit supplies a first charging current as a constant current based on an output current of the current source circuit. The second charging circuit supplies a second charging current which is a constant current and is higher than the first charging current based on the output current of the current source circuit. The control circuit makes the first charging circuit supply the first charging current when a current value of the charging current is determined as a current value in the first current mode. The control circuit makes the second charging circuit supply the second charging current when the current value of the charging current is determined as a current value in the second current mode higher than the current value in the first current mode.

2. 发明公开

US20230231403A1 BATTERY CHARGING METHOD AND SYSTEM BASED ON LITHIUM PLATING DETECTION, AND AUTOMOBILE AND MEDIUM 审中-公开
公开(公告)号：US20230231403A1
公开(公告)日：2023-07-20
申请号：US18189474
申请日：2023-03-24
申请人： BYD COMPANY LIMITED
发明人： Tianyu FENG , Shiwei SHU , Linwang DENG , Xiaoqian LI
IPC分类号： H02J7/00 , G01R31/3835 , G01R31/389 , H01M10/44 , H01M10/48
CPC分类号： H02J7/00714 , G01R31/389 , G01R31/3835 , H01M10/44 , H01M10/48 , H02J7/0047 , B60R16/033 , H01M2220/20
摘要： A battery charging method based on lithium plating detection includes: acquiring a battery charging strategy table after receiving a battery charging instruction; charging a battery according to a charging current in the battery charging strategy table, and performing at least one charging lithium plating detection on the battery during the charging of the battery, to obtain a first lithium plating detection result; continuing the charging of the battery according to the charging current and the charging lithium plating detection of the battery when no lithium plating phenomenon occurs, and stopping the charging lithium plating detection when the lithium plating phenomenon occurs or the charging of the battery is completed; and updating the charging current according to a preset first current reduction strategy when the lithium plating phenomenon occurs, and continuing the charging of the battery according to the updated charging current until the charging is completed.

3. 发明公开

US20230231398A1 CHARGER CIRCUIT 审中-公开
公开(公告)号：US20230231398A1
公开(公告)日：2023-07-20
申请号：US18058312
申请日：2022-11-23
申请人： Richtek Technology Corporation
发明人： Kuan-Yu Chen , Tsung-Wei Huang , Tsan-Huei Wu , Ye-Sing Luo
IPC分类号： H02J7/00
CPC分类号： H02J7/0063 , H02J7/007 , H02J7/00304 , H02J7/00714
摘要： A charger circuit includes a power stage circuit operating at least one power switch according to an operating signal to convert an input power into an output power to charge a battery and/or to provide the output power to a load, wherein the output power includes a charging power and/or a load power; a control generating the operating signal according to a voltage amplifying signal; and a voltage error amplifier circuit comparing a voltage sensing signal relevant to a charging voltage of the charging power or a load voltage of the load power with a voltage reference level in a voltage hysteresis mode of a discontinuous conduction mode, so as to generate the voltage amplifying signal; wherein the control circuit adjusts the charging voltage or the load voltage according to the voltage amplifying signal, so as to maintain the charging voltage or the load voltage within a predetermined range.

4. 发明授权

US11699916B2 Method for charging a battery using a thermal model for an electrical device connected to the battery 有权
公开(公告)号：US11699916B2
公开(公告)日：2023-07-11
申请号：US17524965
申请日：2021-11-12
申请人： BAE Systems Controls Inc.
发明人： Nicholas A. Lemberg , Liam Collins
IPC分类号： H02J7/00 , B60L53/60 , B60L58/24 , G01R31/382 , G01R31/374 , G05B17/02
CPC分类号： H02J7/007192 , B60L53/60 , B60L58/24 , G01R31/374 , G01R31/382 , G05B17/02 , H02J7/00714
摘要： A method for charging a battery includes coupling an electrical device in a circuit between the battery and an electrical power source. The electrical device having on and off states that are mechanically different. The method includes charging the battery by setting the electrical device to the on state, measuring current flowing through contacts of the electrical device while in the on state, determining current as a function of time flowing through the contacts of the electrical device, using the current as a function of time as a variable in a thermal model based on heating of the contacts and cooling of the contacts, determining by the thermal model a predicted temperature of the contacts based on the current as a function of time and the heating and cooling of the contacts and controlling the on and off state of the electrical device based on the predicted temperature.

5. 发明公开

US20230216303A1 METHOD, DEVICE, AND SYSTEM FOR MANAGING CHARGE AND DISCHARGE OF ESS GROUP FOR VOLTAGE STABILIZATION OF SYSTEM HAVING DISTRIBUTED POWER SUPPLY CONNECTED THERETO 审中-公开
公开(公告)号：US20230216303A1
公开(公告)日：2023-07-06
申请号：US17928304
申请日：2021-05-25
申请人： AEONUS CO., LTD
发明人： Eun HEO
IPC分类号： H02J3/32 , H02J3/00 , H02J3/38 , H02J7/00
CPC分类号： H02J3/32 , H02J3/003 , H02J3/004 , H02J3/381 , H02J7/007182 , H02J7/00714 , H02J7/0063 , H02J2203/10
摘要： According to an embodiment of the present invention, there is provided a method for managing charging and discharging of an energy storage system (ESS) group for voltage stabilization of a grid having a distributed resource connected thereto in a power management device, the method including measuring a voltage and current amount of the grid to which the distributed resource is connected, performing control so that a voltage of the grid to which the distributed resource is connected is reduced through charging of an ESS group to be charged, by determining that a plurality of ESSs connected to a power distribution line are required to be charged when it is confirmed that the voltage and current amount of the grid to which the distributed resource is connected are greater than a preset reference voltage and current amount, calculating a required charge amount through a difference between the voltage and current amount of the grid to which the distributed resource is connected and the reference voltage and current amount, checking the chargeable capacity for each of ESS groups in which the plurality of ESSs are classified according to a preset condition, selecting the ESS group to be charged from among the ESS groups based on the required charge amount and the chargeable capacity for each ESS group, and transmitting a charging command for the required charge amount to the ESS group to be charged, performing control so that the voltage of the grid to which the distributed resource is connected is increased through charging of an ESS group to be discharged, by determining that the plurality of ESSs are required to be discharged when it is confirmed that the voltage and current amount of the grid to which the distributed resource is connected are smaller than the reference voltage and current amount, calculating a required discharge amount through the difference between the voltage and current amount of the grid to which the distributed resource is connected and the reference voltage and current amount, checking the dischargeable capacity for each of the ESS groups, selecting the ESS group to be discharged from among the ESS groups based on the required discharge amount and the dischargeable capacity for each ESS group, and transmitting a discharging command for the required discharge amount to the ESS group to be discharged, calculating a voltage control amount through a charge amount and a discharge amount for each ESS group when the voltage of the grid to which the distributed resource is connected is stabilized by charging and discharging the plurality of ESSs, and providing a performance incentive for voltage stabilization to the ESS group in which it is confirmed that the voltage control amount is greater than or equal to a reference value according to the voltage control amount and providing a maintenance incentive for standby in an emergency situation to an ESS group in which it is confirmed that the voltage control amount is less than the reference value.

6. 发明公开

US20230208180A1 LINEAR CHARGER WITH THERMAL REGULATION CIRCUIT 审中-公开
公开(公告)号：US20230208180A1
公开(公告)日：2023-06-29
申请号：US17561685
申请日：2021-12-23
申请人： Elite Semiconductor Microelectronics Technology Inc.
发明人： Yao-Wei Yang
IPC分类号： H02J7/00
CPC分类号： H02J7/007192 , H02J7/007182 , H02J7/00714
摘要： A linear charger includes a constant current charging circuit and a thermal regulation circuit. The constant current charging circuit is arranged to generate a charging current, and includes a first transconductance amplifier, wherein the first transconductance amplifier has a positive terminal, a negative terminal, and an output terminal. The thermal regulation circuit is coupled to the output terminal and the negative terminal of the first transconductance amplifier, and is arranged to generate and modulate a thermal regulation current and an amplifier reference voltage with temperature, and transmit the thermal regulation current and the amplifier reference voltage to the output terminal and the negative terminal of the first transconductance amplifier, respectively.

7. 发明授权

US11677102B2 Adaptive charging protocol for fast charging of batteries and fast charging system implementing this protocol 有权
公开(公告)号：US11677102B2
公开(公告)日：2023-06-13
申请号：US16770566
申请日：2018-12-07
申请人： Yazami IP PTE. LTD.
发明人： Rachid Yazami , Thannehene Gedara Thusitha Asela Bandara
IPC分类号： H01M10/44 , G01R31/387 , H02J7/00 , H01M10/0525 , H01M10/46 , H01M10/48
CPC分类号： H01M10/44 , G01R31/387 , H01M10/0525 , H01M10/46 , H02J7/005 , H02J7/007 , H02J7/0048 , H02J7/0071 , H02J7/00714 , H02J7/00718 , H02J7/007184 , H01M10/48 , H02J7/0047 , H02J7/00712
摘要： An adaptive charging protocol (ACP) implemented for fast-charging a rechargeable battery having electrode terminals connected to terminals of a power supply provided to apply time-varying voltages to the electrodes, comprising, before starting a charging operation for the battery, the steps of: detecting the existence of historical data on previous charging operations for the battery; in case of detection, processing the historical data to adjust charging parameters in view of optimizing the charging operation; in absence of detection, electrically testing the battery to get data on variations of the state of charge (SOC) for the battery, in view of building a learning model on the SOC variations to be used for optimizing the charging operation.

8. 发明公开

US20230178817A1 FEED UNIT, FEED SYSTEM, AND ELECTRONIC DEVICE FOR INCREASING POWER SUPPLIED TO A BATTERY BASED ON A DEVICE STATE AND/OR A CONTROL OF A CHARGING CURRENT 审中-公开
公开(公告)号：US20230178817A1
公开(公告)日：2023-06-08
申请号：US18154513
申请日：2023-01-13
申请人： SONY GROUP CORPORATION
发明人： Koichi AKIYOSHI , Yoichi URAMOTO
IPC分类号： H01M10/44 , H02J50/80 , H02J50/12 , H02J7/00
CPC分类号： H01M10/44 , H02J50/80 , H02J50/12 , H02J7/0068 , H02J7/00714 , H02J7/00 , H02J7/0044 , H02J7/04
摘要： A feed unit includes: a power transmission section configured to perform power transmission using a magnetic field or an electric field, to a device to be fed including a secondary battery; and a power-transmission control section configured to control power transmission operation in the power transmission section. In a charging period in which charging to the secondary battery is performed based on transmitted power in the power transmission, when the device to be fed including the secondary battery is activated, the power-transmission control section controls the power transmission operation, to increase the transmitted power.

9. 发明公开

US20230173924A1 STORAGE BATTERY CONTROL APPARATUS 审中-公开
公开(公告)号：US20230173924A1
公开(公告)日：2023-06-08
申请号：US18151571
申请日：2023-01-09
申请人： DENSO CORPORATION
发明人： Ryuta YAMAGUCHI , Yamato UTSUNOMIYA
IPC分类号： B60L3/00 , H02J7/00 , B60L53/62 , B60L58/15 , B60L50/60 , H01M10/46
CPC分类号： B60L3/0046 , H02J7/00714 , H02J7/0047 , H02J7/00302 , B60L53/62 , B60L58/15 , B60L50/60 , H01M10/46 , B60L53/18
摘要： A power supply system includes a storage battery and first and second current sensors for detecting electric current flowing to the storage battery. The second current sensor has a wider current detection range than the first current sensor. A storage battery control apparatus includes: an abnormality determination unit that determines whether an abnormality has occurred in the first current sensor; a first charging control unit that performs, when no abnormality has occurred in the first current sensor, a charging completion determination based on the electric current detected by the first current sensor; and a second charging control unit that performs, when an abnormality has occurred in the first current sensor, the charging completion determination based on the electric current detected by the second current sensor. The first charging control unit and the second charging control unit have different determination criteria for determining completion of the charging of the storage battery.

10. 发明公开

US20230147536A1 GREEN BATTERY CHARGER AND FRAMEWORK 审中-公开
公开(公告)号：US20230147536A1
公开(公告)日：2023-05-11
申请号：US17974688
申请日：2022-10-27
申请人： Powermat Technologies LTD.
发明人： Itay Sherman
IPC分类号： H02J7/00
CPC分类号： H02J7/00714 , H02J7/007182
摘要： A charger is provided. The charger includes a controller and an input/output module. The controller includes a memory storing a charging algorithm. The controller is configured to control a current flow to and from a battery according to the charging algorithm, collect information from the battery during charge and discharge cycles relative to the current flow, report the information to a server, and change the charging algorithm according to an optimized configuration. The input/output module is configured to connect the controller and the server and communicate the information.

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