公开(公告)号：US20250070543A1

公开(公告)日：2025-02-27

申请号：US18943172

申请日：2024-11-11

Applicant: ROHM CO., LTD.

Inventor： Toru Takuma ,  Naoki Takahashi ,  Shuntaro Takahashi

IPC: H02H1/00 ,  B60R16/02 ,  B60R16/03 ,  H02H3/087 ,  H02H3/093 ,  H02H7/20

Abstract: In order both to accommodate instantaneous current as well as overcurrent protection in accordance with the load, an overcurrent protection circuit has: a threshold value generation unit that, in accordance with a threshold value control signal, switches between setting an overcurrent detection threshold value to a first set value (∝Iref) and a second set value (∝Iset) lower than the first set value; an overcurrent detection unit that compares a sense signal in accordance with the current being monitored and the overcurrent detection value and generates an overcurrent protection signal; a reference value generation unit that generates a reference value (∝Iset) in accordance with the seconds set value; a comparison unit that compares the sense signal and the reference value, and generates a comparison signal; and a threshold value control unit that monitors the comparison signal, and generates a threshold value control signal.

公开(公告)号：US20250055415A1

公开(公告)日：2025-02-13

申请号：US18719025

申请日：2022-03-31

Applicant: HOYMILES POWER ELECTRONICS INC.

Inventor： Hongbin YU ,  Yanliang CAI ,  Qiang RONG ,  Yi ZHAO ,  Bo YANG

IPC: H02S40/30 ,  H02H7/20 ,  H02S50/10

Abstract: A multi-input shutdown device, including: a first input port, configured to be coupled to a first photovoltaic unit; at least one second input port, configured to be coupled to a second photovoltaic unit, where the second photovoltaic unit includes at least one cell substring and a freewheeling diode connected in parallel to the cell substring; a first shutdown module including a first switching device and a first bypass device, where the first bypass device is configured to provide a bypass path for a power bus current when the first photovoltaic unit is abnormal; at least one second shutdown module, including a second switching device; and a control module, configured to control the second switching device to be turned on when the second photovoltaic unit is abnormal, so that the second switching device and the freewheeling diode in the second photovoltaic unit provide a bypass path for the power bus current.

公开(公告)号：US20250055273A1

公开(公告)日：2025-02-13

申请号：US18447823

申请日：2023-08-10

Applicant: Atieva, Inc.

Inventor： Jean-Philippe Gauthier ,  Thomas Joel Huber

IPC: H02H7/20 ,  B60R16/033 ,  H02H1/00

Abstract: A vehicle comprises: a low-voltage battery to provide low-voltage power; devices configured to operate using the low-voltage power, each of the devices coupled to the low-voltage battery by a corresponding conductor, wherein the devices comprise all consumers of the low-voltage power in the vehicle; switches to selectively interrupt the low-voltage power between the low-voltage battery and any of the devices, each of the switches positioned in a respective conductor of the conductors; and a central processing unit configured to detect an overload condition regarding any of the switches, and to open, in response to detecting the overload condition, the switch of the conductor between the low-voltage battery and the corresponding one of the devices.

公开(公告)号：US20240421589A1

公开(公告)日：2024-12-19

申请号：US18545013

申请日：2023-12-19

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kyusung CHO

IPC: H02H7/20 ,  H02H1/00

Abstract: A crash switch circuit includes: a first switch including: an emitter to be supplied with a positive terminal voltage of a battery pack; a collector to output a crash output signal; and a base connected with a first node; a first resistor and a capacitor connected in parallel with each other between the emitter and the first node; and a diode including an anode to be supplied with a crash input signal from a crash sensor, and a cathode connected with the first node.

公开(公告)号：US20240413628A1

公开(公告)日：2024-12-12

申请号：US18737099

申请日：2024-06-07

Applicant: SENSATA TECHNOLOGIES, INC.

Inventor： ROBERT A. F. ZWIJZE ,  KEVIN PATERSON

IPC: H02H7/20 ,  H02H1/00

Abstract: Apparatuses and methods for implementing contactor opening and fusing strategies in a power distribution unit are disclosed, including a power distribution unit comprising: one or more contactors coupled to one or more charging systems; one or more active fuses in a circuit connecting the one or more contactors to a battery system; and a microcontroller configured to: receive one or more current values; determine whether the one or more current values meet a first set of predetermined current thresholds; in response to determining that the one or more current values meet the first set of predetermined current thresholds, trigger the one or more active fuses; determine whether the one or more current values meet a second set of predetermined current thresholds; and in response to determining that the one or more current values meet the second set of predetermined current thresholds, signal the one or more contactors to open.

公开(公告)号：US20240405563A1

公开(公告)日：2024-12-05

申请号：US18801867

申请日：2024-08-13

Applicant: SUNGROW POWER SUPPLY CO., LTD.

Inventor： Bing ZHANG ,  Nianan PAN ,  Peng WANG ,  Jigui FENG

IPC: H02J3/38 ,  H02H7/20 ,  H02J3/00

Abstract: Provided are a photovoltaic power generation system and a fault protection method and device thereof, a combiner box, and an inverter. The method includes: disconnecting, when there are co-positive power conversion units or co-negative power conversion units in the plurality of power conversion units and the protection switch units corresponding to the co-positive power conversion units or the co-negative power conversion units share a protection switch when connected to their corresponding photovoltaic string units, part or all of the plurality of protection switch units in response to detecting a fault in the photovoltaic power generation system, such that at most two photovoltaic strings in each of the corresponding photovoltaic string units are connected in parallel. When the protection switch units corresponding to the co-positive power conversion units or the co-negative power conversion units are disconnected, their corresponding photovoltaic strings are disconnected separately by at least three protection switches.

公开(公告)号：US12155349B2

公开(公告)日：2024-11-26

申请号：US17760065

申请日：2022-05-07

Applicant: HENGDIAN GROUP DMEGC MAGNETICS CO., LTD

Inventor： Tingting Wang ,  Hailin Yin ,  Lin Zhao

IPC: H02S40/34 ,  H02S40/38 ,  H01L31/02 ,  H01L31/042 ,  H01L31/044 ,  H02H7/20 ,  H02H11/00 ,  H02S50/00

Abstract: An intelligent solar photovoltaic component includes a solar photovoltaic component body and an intelligent junction box located on the solar photovoltaic component body. The intelligent junction box includes multiple solar controllers in communication with one another. Multiple battery strings in the solar photovoltaic component body are in a one-to-one correspondence electrically connected to connection terminals of solar controllers via busbars.

公开(公告)号：US12153097B2

公开(公告)日：2024-11-26

申请号：US18227313

申请日：2023-07-28

Applicant: Fulian Precision Electronics (Tianjin) Co., LTD.

Inventor： Duo Qiu

IPC: G01R31/40 ,  G06F1/28 ,  G06F1/30 ,  G06G7/10 ,  G06F1/26 ,  H02H1/00 ,  H02H7/20

Abstract: A power failure monitoring device includes an electronic device and a console; the electronic device includes a main board; the console is coupled to the main board and adapted to obtain power failure information in the electronic device, and then analyze a power supply condition of the electronic device according to the obtained power failure information.

公开(公告)号：US20240326599A1

公开(公告)日：2024-10-03

申请号：US18737373

申请日：2024-06-07

Applicant: Archer Aviation Inc.

Inventor： Saienath POOPALARAJAH ,  Pedro Roberto Paterson CARLEIAL ,  Paul FRIHAUF

IPC: B60L3/04 ,  B60L50/60 ,  B64C29/00 ,  H01M50/583 ,  H02H7/20

CPC classification number: B60L3/04 ,  B60L50/60 ,  H01M50/583 ,  H02H7/20 ,  B60L2200/10 ,  B64C29/0008 ,  H01M2200/103 ,  H01M2220/20

Abstract: An electrical system for an aircraft, comprising at least one processor configured to: receive aircraft movement information, detect that the movement information indicates a potential crash, detect a loss of continuity in at least one low voltage wire, and blow a battery pack fuse to disconnect supply of the high voltage power to the aircraft.

公开(公告)号：US12101057B2

公开(公告)日：2024-09-24

申请号：US18138737

申请日：2023-04-25

Applicant: OMRON Corporation

Inventor： Takahiro Takeyama ,  Ryo Ogura ,  Jeongho Baik ,  Jun Nakaichi ,  Tsuyoshi Uchida ,  Tomoko Endo ,  Erica Martin

IPC: H02S40/36 ,  H02H7/20 ,  H02S40/32 ,  H02J13/00

CPC classification number: H02S40/36 ,  H02H7/20 ,  H02S40/32 ,  H02J13/00036 ,  H02J2300/24

Abstract: A solar power generation system includes a string, an inverter, and a plurality of shut-off devices. The string includes a plurality of solar cell module groups. The plurality of shut-off devices is configured to cut off the connection between the plurality of solar cell module groups in response to a control signal from the inverter. The plurality of solar cell module groups includes a first group, a second group connected to the first group, and a third group connected to the second group. The plurality of shut-off devices includes a first shut-off device. The first shut-off device includes a first open-close unit connected to an anode-side terminal of the second group and a second open-close unit connected to a cathode-side terminal of the second group.