公开(公告)号：US20250056773A1

公开(公告)日：2025-02-13

申请号：US18931318

申请日：2024-10-30

Applicant: BorgWarner US Technologies LLC

Inventor： Jack Lavern Glenn ,  Mark Russell Keyse ,  Marc R. Engelhardt ,  Kevin M. Gertiser

IPC: H05K7/20 ,  B60L3/00 ,  B60L15/00 ,  B60L15/08 ,  B60L15/20 ,  B60L50/40 ,  B60L50/51 ,  B60L50/60 ,  B60L50/64 ,  B60L53/20 ,  B60L53/22 ,  B60L53/62 ,  B60R16/02 ,  G01R15/20 ,  G06F1/08 ,  G06F13/40 ,  H01L21/48 ,  H01L23/00 ,  H01L23/15 ,  H01L23/367 ,  H01L23/373 ,  H01L23/40 ,  H01L23/467 ,  H01L23/473 ,  H01L23/495 ,  H01L23/538 ,  H01L25/00 ,  H01L25/07 ,  H01L29/66 ,  H02J7/00 ,  H02M1/00 ,  H02M1/08 ,  H02M1/084 ,  H02M1/088 ,  H02M1/12 ,  H02M1/32 ,  H02M1/42 ,  H02M1/44 ,  H02M3/335 ,  H02M7/00 ,  H02M7/537 ,  H02M7/5387 ,  H02M7/5395 ,  H02P27/06 ,  H02P27/08 ,  H02P29/024 ,  H02P29/68 ,  H03K19/20 ,  H05K1/14 ,  H05K1/18 ,  H05K5/02

Abstract: A system comprises an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a galvanic isolator separating a high voltage area from a low voltage area; a low voltage phase controller in the low voltage area, the low voltage phase controller configured to receive a pulse width modulation (PWM) signal from an inverter controller and adjust the received PWM signal based on a feedback signal; and a high voltage phase controller in the high voltage area, the high voltage phase controller configured to receive the adjusted PWM signal from the low voltage phase controller, provide the adjusted PWM signal to a phase switch, and provide the feedback signal based on an on-time measurement of the phase switch.

公开(公告)号：US20250052791A1

公开(公告)日：2025-02-13

申请号：US18447665

申请日：2023-08-10

Applicant: Allegro MicroSystems, LLC

Inventor： Christian Kasparek

IPC: G01R15/20 ,  G01R19/00 ,  G01R33/07 ,  G01R33/09

Abstract: A system, comprising: a conductor having a pair of primary surfaces, the conductor including a through-hole formed therein, the conductor including a first notch that is formed adjacent to the through-hole; and a printed circuit board that is inserted in the through-hole, the printed circuit board having a current sensor mounted thereon, the current sensor being disposed inside the through-hole, the current sensor including a first magnetic field sensing element and a second magnetic field sensing element having respective axes of maximum sensitivity that are substantially perpendicular to the primary surfaces of the conductor.

公开(公告)号：US12222373B2

公开(公告)日：2025-02-11

申请号：US18158266

申请日：2023-01-23

Applicant: Alps Alpine Co., Ltd.

Inventor： Yosuke Ide

IPC: G01R15/20 ,  G01R19/00 ,  G01R33/09

Abstract: A magnetic sensor includes a magnetoresistive element having a sensitivity axis in a Y direction, a magnetic shield disposed apart in a Z direction from the magnetoresistive element and configured to attenuate the intensity of a magnetic field to be measured, and a magnetic balance coil. The magnetic shield includes a first shield part longitudinally extending in the X direction and second shield parts provided on either side of the first shield part. The first shield part has a portion that overlaps the magnetoresistive element when viewed in the Z direction. Each second shield part has a portion that overlaps the magnetoresistive element when viewed in the X direction. A magnetic path for a magnetic field in the X direction can be formed from one of the second shield parts to the other one of the second shield parts via the first shield part.

公开(公告)号：US20250044325A1

公开(公告)日：2025-02-06

申请号：US18921175

申请日：2024-10-21

Applicant: Alps Alpine Co., Ltd.

Inventor： Manabu TAMURA

IPC: G01R15/20 ,  G01R19/00

Abstract: A current sensor has: a bus bar extending in a first direction; a magnetic shield having a portion that faces the bus bar along a third direction; a magnetic sensor facing the bus bar along the third direction on an opposite side of the bus bar to a side on which the magnetic shield is placed; and a case molded integrally with part of the bus bar. The magnetic shield has: a U-shaped portion that has a bottom wall including a portion that faces the bus bar along the third direction and also has two side walls, facing each other in the second direction, that is erected in the third direction from ends of the bottom wall in a second direction; an attachment portion that is adjoined to the U-shaped portion and is fixed to the case; and a link portion that links the U-shaped portion and attachment portion together.

公开(公告)号：US12163983B2

公开(公告)日：2024-12-10

申请号：US18053480

申请日：2022-11-08

Applicant: Allegro MicroSystems, LLC

Inventor： Shixi Louis Liu ,  Robert A. Briano ,  Natasha Healey

IPC: G01R15/20 ,  G01R19/00 ,  H01L21/66 ,  H01L23/495

Abstract: A packaged current sensor integrated circuit includes a primary conductor having an input portion and an output portion configured to carry a current to be measured by one or more magnetic sensing elements supported by a semiconductor die adjacent to the primary conductor. A method of fabricating the packaged current sensor integrated circuit includes partially encasing the lead frame in a first mold material, applying an insulator to one or more die attach pads, attaching a die to the insulator, electrically connecting the die to secondary leads, and providing a second mold to the subassembly. The package is configured to provide increased voltage isolation.

公开(公告)号：US20240399895A1

公开(公告)日：2024-12-05

申请号：US18804301

申请日：2024-08-14

Applicant: Delphi Technologies IP Limited

Inventor： Mark Wendell Gose ,  Seyed R. Zarabadi ,  David Paul Buehler ,  Kevin M. Gertiser

IPC: B60L50/60 ,  B60L3/00 ,  B60L15/00 ,  B60L15/08 ,  B60L15/20 ,  B60L50/40 ,  B60L50/51 ,  B60L50/64 ,  B60L53/20 ,  B60L53/22 ,  B60L53/62 ,  B60R16/02 ,  G01R15/20 ,  G06F1/08 ,  G06F13/40 ,  H01L21/48 ,  H01L23/00 ,  H01L23/15 ,  H01L23/367 ,  H01L23/373 ,  H01L23/40 ,  H01L23/467 ,  H01L23/473 ,  H01L23/495 ,  H01L23/538 ,  H01L25/00 ,  H01L25/07 ,  H01L29/66 ,  H02J7/00 ,  H02M1/00 ,  H02M1/08 ,  H02M1/084 ,  H02M1/088 ,  H02M1/12 ,  H02M1/32 ,  H02M1/42 ,  H02M1/44 ,  H02M3/335 ,  H02M7/00 ,  H02M7/537 ,  H02M7/5387 ,  H02M7/5395 ,  H02P27/06 ,  H02P27/08 ,  H02P29/024 ,  H02P29/68 ,  H03K19/20 ,  H05K1/14 ,  H05K1/18 ,  H05K5/02 ,  H05K7/20

Abstract: A system includes: an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a first power module including: a first connection; a second connection; a first power switch including a first gate terminal, the first power switch configured to control a first flow of current between the first connection and the second connection based on a first signal to the first gate terminal; and a first point-of-use controller configured to provide the first signal to the first gate terminal to control the first power switch.

公开(公告)号：US20240393377A1

公开(公告)日：2024-11-28

申请号：US18690838

申请日：2021-09-14

Applicant: Ademco Inc.

Inventor： Brian Scott Courtney ,  Brenden Knecht

IPC: G01R19/25 ,  G01R15/18 ,  G01R15/20 ,  G01R21/06

Abstract: A system (60) that monitors and analyzes power consumption signals over time for household equipment (35). Equipment (35) may exhibit a representative operating signature. The system analytics may include determining a ‘normal’ operating signature for a piece of monitored equipment (35), which may include minimum and maximum expected ranges for different transition points or other characteristic points in the signature. The characteristic points may include points of minimum variability in magnitude. Based on monitoring the characteristic points, the system (60) may make a binary determination of “normal” or “abnormal.” That is, the system (60) may determine that an operational run of the equipment (35) is good or “potentially not good,” based on a comparison of the measured characteristics points to a normal operating signature. In response to a binary determination of abnormal, the system (60) may output a signal to alert user, a repair facility, or similar entity of the potential abnormal behavior.

公开(公告)号：US12153071B2

公开(公告)日：2024-11-26

申请号：US18395663

申请日：2023-12-25

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Masaki Tsujimoto ,  Takuya Ishida

IPC: G01R15/20 ,  G01R19/00 ,  G01R33/00 ,  G01R33/07 ,  G01R33/09

Abstract: A current sensor is configured by at least one magnetoelectric conversion element, a conductor, and a signal processing IC being encapsulated by an encapsulating portion. The current sensor includes a pair of first lead terminals that is partially exposed outside of the encapsulating portion, is electrically connected to the conductor, inputs the measurement current to the conductor, and outputs the measurement current from the conductor; a metal member that is partially exposed outside the encapsulating portion and is spaced apart from the conductor; and a supporting portion that supports the at least one magnetoelectric conversion element, the signal processing IC, and the metal member on a first surface, is separated from the conductor, and is separate from the metal member.

公开(公告)号：US12135342B2

公开(公告)日：2024-11-05

申请号：US18061337

申请日：2022-12-02

Applicant: Alps Alpine Co., Ltd.

Inventor： Manabu Tamura ,  Minoru Abe

IPC: G01R15/20 ,  G01R15/14 ,  G01R19/00

Abstract: A current detection device includes a plurality of current detection units arranged in the current detection device. Each of the current detection units includes a bus bar that enables a current to be measured to flow therethrough, a magnetic sensor disposed at a position facing the bus bar, and a pair of shields disposed so as to sandwich the bus bar and the magnetic sensor in a facing direction in which the bus bar and the magnetic sensor face each other. The bus bars of the plurality of current detection units extend so as to be aligned to one another and, as viewed in the facing direction, the positions of the shield and the magnetic sensor of each of the current detection units in an extension direction of the bus bars differ from the positions of the shield and the magnetic sensor of the adjacent current detection unit.

公开(公告)号：US20240361359A1

公开(公告)日：2024-10-31

申请号：US18573982

申请日：2021-09-01

Applicant: ROOTECH INC.

Inventor： Changyong JEONG ,  Sungwoon JO ,  Youngbok BYUN ,  Googchun CHO ,  Seongbong CHOI

IPC: G01R15/20 ,  G01R15/18 ,  G01R19/00 ,  G01R35/00

CPC classification number: G01R15/202 ,  G01R15/18 ,  G01R19/0092 ,  G01R35/005

Abstract: Proposed is a high current measuring device for measuring an entire current flowing through a metal bar (10), wherein the metal bar (10) is a rectangle, has a plate-shaped outline, and includes an even number of split slits (11a, 11b) disposed in a widthwise direction at a center of a longitudinal direction so that a branch set 11, which includes branches (in an odd number no smaller than 3) through which the entire current is divided and flows, is provided, a 1-1 notch (12a) and a 1-2 notch (12b) respectively provided by being concaved inward from two longer sides of the rectangle at the front ends of the split slits (11a, 11b), and a 2-1 notch (14a) and a 2-2 notch (14b) respectively provided by being concaved inward from two longer sides of the rectangle at the rear ends of the split slits (11a, 11b).