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公开(公告)号：US11646598B2
公开(公告)日：2023-05-09
申请号：US16657067
申请日：2019-10-18
发明人： David Edwin Radtke
CPC分类号： H02J7/1423 , B23K9/1006 , B23K9/1081 , H02J7/16 , H02J7/345
摘要： A welding-type power system that includes an engine configured to drive an electric generator to provide a first power output. In addition to the electric generator, the system includes an energy storage system to provide a second power output. The system includes energy storage devices and charging devices that are used to charge the energy storage devices. A controller is configured to control the charging devices to provide charging power output to the energy storage devices based on the parameters related to the charge level of the energy storage devices. The controller, using data received from sensors and charge measurement devices, determines the respective charge level for each energy storage device; compares the respective charge levels to one or more threshold charge levels; and controls the charging devices to provide a charging power output to the energy storage devices with a charge level that is below a threshold charge level.
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公开(公告)号：US11631986B2
公开(公告)日：2023-04-18
申请号：US16781032
申请日：2020-02-04
发明人： Aiko Nagano
IPC分类号： H02J7/04 , H02J7/16 , H01M10/48 , G01R27/14 , H01M10/052
摘要： It is an object of the invention to provide a method for efficiently charging a secondary battery. The method of the disclosure is a method for charging a secondary battery that includes step (A) for measuring an internal resistance of the secondary battery, and step (B) for increasing or decreasing the maximum charging voltage of the secondary battery in accordance with increase or decrease of the measured internal resistance.
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公开(公告)号：US11588406B2
公开(公告)日：2023-02-21
申请号：US16935398
申请日：2020-07-22
发明人： Jian Deng , Qiukai Huang , Chen Zhao
IPC分类号： H02J7/04 , H02J7/16 , H02M3/335 , H02J7/00 , H02M3/158 , H02M7/155 , H02M3/00 , H02M7/04 , H02M1/00
摘要： A battery charging circuit can include: a primary rectifier circuit configured to rectify an input AC voltage into a rectified voltage signal; a DC-DC converter configured to generate a charging current according to the rectified voltage signal, in order to charge a battery; a control circuit configured to adjust the charging current by controlling an operation state of the DC-DC converter according to a charging requirement, in order to make an average value of the charging current meet the charging requirement; and where the charging current is controlled to be zero when an absolute value of the input AC voltage is lower than a predetermined threshold.
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公开(公告)号：US11523479B2
公开(公告)日：2022-12-06
申请号：US17134064
申请日：2020-12-24
发明人： Bo Zhang
IPC分类号： H05B45/14 , H05B45/325 , H05B45/375 , H03K3/012 , H02J7/16 , H05B45/30
摘要： A load driving circuit includes a switch circuit and a linear circuit connected in series. The switch circuit has a switching transistor and converts an input voltage into a first output voltage. The linear circuit has a linear device and provides a driving voltage and a driving current for driving the load. The driving circuit controls the switching transistor according to a feedback signal indicative of conducting state of the linear device.
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公开(公告)号：US11495985B1
公开(公告)日：2022-11-08
申请号：US16284118
申请日：2019-02-25
摘要： A charging circuit and a method with an inductor, an input to receive an input voltage, an output, and a switching means is presented. The switching means performs cycles where each cycle includes, switching the circuit such that the inductor enters into an energy charging state in which the inductor stores energy provided by the input voltage. When energy stored in the inductor reaches an energy threshold, the switching circuit operates such that the inductor enters into an energy discharging state in which the inductor provides energy to the output. The energy threshold is based on a predefined maximum energy storage current value and the time between cycles is based on a duration of the energy discharging state.
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公开(公告)号：US11495978B2
公开(公告)日：2022-11-08
申请号：US17115643
申请日：2020-12-08
申请人： Intel Corporation
摘要： In some examples, a system includes a primary side with a charger and a first battery and a secondary side with a second battery. The charger on the primary side can charge both the first battery and the second battery. A hinge resistance is between the primary side and the secondary side. The primary side includes a feedback controlled active device in a current path of the first battery that compensates for the hinge resistance, for connector resistances, or for battery impedances in a current path of the second battery.
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公开(公告)号：US20220231537A1
公开(公告)日：2022-07-21
申请号：US17610304
申请日：2019-05-10
申请人： AutoNetworks Technologies, Ltd. , Sumitomo Wiring Systems, Ltd. , Sumitomo Electric Industries, Ltd.
摘要： A conversion device is a conversion device that converts power supplied from a power supply device including a plurality of battery units, and includes a plurality of power conversion units. Each of the plurality of power conversion units is connected to the plurality of battery units such that a voltage within a range of a breakdown voltage of the power conversion unit is input.
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公开(公告)号：US11345249B2
公开(公告)日：2022-05-31
申请号：US16996478
申请日：2020-08-18
发明人： Ki Jong Lee , Sang Cheol Shin , Young Seul Lim , Ji Woong Jang , Yoo Jong Lee , Jun Hwan Kim , Seong Min Lee
IPC分类号： B60L53/24 , H02J7/16 , H02J7/00 , H02K5/22 , H02P27/06 , B60K1/00 , B60K1/04 , B60L53/302 , B60L53/55 , H02K11/33 , H05K7/20
摘要： A power conversion apparatus for multi-voltage charging is provided. The power conversion apparatus includes a housing, a motor connecting terminal disposed at one side of the housing, a relay having a first end electrically connected to the motor connecting terminal, and a capacitor having a first terminal electrically connected to a second end of the relay, and second and third terminals respectively connected to positive and negative terminals of an external battery, wherein the motor connecting terminal, the relay, and the first, second and third terminals are disposed within the housing along an outer edge of the housing.
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公开(公告)号：US20220140631A1
公开(公告)日：2022-05-05
申请号：US17575303
申请日：2022-01-13
发明人： Atsushi FUKUSHIMA
摘要： An energy storage apparatus includes: a plurality of energy storage devices connected in series; a voltage detection unit that detects voltages of the plurality of energy storage devices; a discharge circuit that discharges the energy storage devices; and a control unit. The energy storage devices include lithium ion cells. The plurality of energy storage devices is chargeable by an external charger for a lead-acid battery, wherein a charge voltage per cell of the external charger for the lead-acid battery is higher than a maximum voltage of the energy storage device, and wherein the control unit discharges only an energy storage device having a highest voltage out of the plurality of energy storage devices when the plurality of energy storage devices is charged by a charger.
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公开(公告)号：US11312241B2
公开(公告)日：2022-04-26
申请号：US17049506
申请日：2019-04-18
发明人： Tsunehito Fujita , Yuki Shirasawa
摘要： According to an embodiment, a power supply system for an electric motor car includes a first terminal, a second terminal, and a conversion unit. The first terminal is electrically connected to one of a power storage device and an overhead wire provided within a formation of electric motor cars. The second terminal is electrically connected to a lead wire together with a plurality of electric motors within the formation, a host power supply device, an external power supply device different from the host power supply device. The conversion unit receives first electric power supplied from the plurality of electric motors and the external power supply device via the second terminal and causes a direct current (DC) voltage to be generated at the first terminal according to a regenerative operation of the conversion unit to charge the power storage device in a first operation state and receives second electric power supplied from one of the power storage device and the overhead wire via the first terminal, converts a part of the second electric power into third electric power according to a powered operation of the conversion unit, and outputs the third electric power from the second terminal in a second operation state, thereby converting electric power.
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