公开(公告)号：US12062997B2

公开(公告)日：2024-08-13

申请号：US17951572

申请日：2022-09-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Tsuyoshi Iguchi

IPC: H02M7/5395 ,  H02M1/12 ,  H02P27/08 ,  H02P29/50

CPC classification number: H02M7/5395 ,  H02M1/12 ,  H02P27/085 ,  H02P29/50

Abstract: A control device includes: a prediction unit configured to predict the harmonic current at each of prediction points comprised in a predetermined prediction target period after current time, based on control information of the motor in at least a next carrier cycle of the inverter, and a command value determination unit configured to output, to the active filter unit, a current command value for generating a compensation current having a polarity opposite to a polarity of a harmonic current at a prediction point, at a timing corresponding to the prediction point comprised in the next carrier cycle in the prediction target period, based on a prediction result of the prediction unit. Each of the prediction points is provided at a predetermined time interval since start time of the prediction target period. The time interval is longer as the next carrier cycle is longer.

公开(公告)号：US12040701B2

公开(公告)日：2024-07-16

申请号：US16989971

申请日：2020-08-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yongbin Chu ,  Yogesh Ramadass ,  Saurav Bandyopadhyay ,  Todd Allen Toporski ,  Jeffrey Anthony Morroni

IPC: H02M1/44 ,  H02M1/12 ,  H02M1/15 ,  H05K9/00

CPC classification number: H02M1/44 ,  H02M1/12 ,  H02M1/15 ,  H05K9/0071

Abstract: An active electromagnetic interference (EMI) filter includes a first amplifier and a second amplifier. The first amplifier is configured to sense noise signals on a power conductor. The second amplifier is coupled to the first amplifier and is configured to drive a cancellation signal onto the power conductor. The cancellation signal is to reduce the amplitude of the noise signals sensed by the first amplifier. An output impedance of the second amplifier is lower than an output impedance of the first amplifier.

公开(公告)号：US12021442B2

公开(公告)日：2024-06-25

申请号：US17843038

申请日：2022-06-17

Applicant: B&R INDUSTRIAL AUTOMATION GMBH

Inventor： Florian Höller ,  Franz Maislinger ,  Jonas Wyss ,  Armin Steinhauser

IPC: H02M1/12 ,  H02M1/00 ,  H02M3/158

CPC classification number: H02M1/12 ,  H02M1/0095 ,  H02M3/158

Abstract: A method for operating a multilevel converter in flycap topology, in which the multilevel converter has at least two semiconductor switches controlled by control pulses of variable pulse durations within a control period that recurs at a control frequency to selectively interconnect a voltage source connected to an input of the multilevel converter, an output of the multilevel converter, and at least one auxiliary capacitor arranged between the input and the output, for generating an output voltage. The method includes using at least one oscillation parameter that describes the oscillation behavior of at least one harmonic of an electrical measured variable, at least one correction pulse duration is determined for a future control pulse to reduce the amplitude of the at least one harmonic and at least one semiconductor switch is controlled with a control pulse of the determined correction pulse duration.

公开(公告)号：US12013088B2

公开(公告)日：2024-06-18

申请号：US18215549

申请日：2023-06-28

Applicant: Colt International Clothing Inc.

Inventor： Guillermo Macias

IPC: F21K9/278 ,  F21K9/27 ,  F21K9/272 ,  F21S10/02 ,  F21V3/02 ,  F21V23/04 ,  F21W131/406 ,  F21Y103/10 ,  F21Y105/10 ,  F21Y113/10 ,  F21Y115/10 ,  H02M1/12 ,  H02M7/538 ,  H04N23/56 ,  H05B45/10 ,  H05K13/00

CPC classification number: F21K9/278 ,  F21K9/27 ,  F21K9/272 ,  F21S10/02 ,  F21S10/023 ,  F21V3/02 ,  F21V23/04 ,  H02M1/12 ,  H02M7/53803 ,  H05B45/10 ,  H05K13/00 ,  F21W2131/406 ,  F21Y2103/10 ,  F21Y2105/10 ,  F21Y2113/10 ,  F21Y2115/10 ,  H04N23/56

Abstract: A method and an apparatus and system for producing light using LED lighting with output within a predetermined desired color temperature range for commercial lighting uses. A preferred embodiment includes a first and second group of LEDs arranged in an alternating matrix configuration, each group of LEDs configured to produce light in a predetermined color temperature range. In a preferred embodiment, an LED light system includes a tubular LED lamp having substantially the same size and dimensions as a traditional fluorescent lamp tube and a control box for controlling power input and power gain to the first, second, or both groups of LEDs.

公开(公告)号：US20240120832A1

公开(公告)日：2024-04-11

申请号：US18263844

申请日：2022-01-31

Applicant: ELDOR CORPORATION S.P.A. ,  DR. ING. H.C. F. PORSCHE AG

Inventor： Pasquale FORTE ,  Alessandro POLI

IPC: H02M1/42 ,  H02J7/00 ,  H02J7/34 ,  H02M1/12

CPC classification number: H02M1/4233 ,  H02J7/0013 ,  H02J7/345 ,  H02M1/12 ,  H02M7/04

Abstract: A power factor correction device includes a power supply side which can be connected to an alternating current source, an output side which can be connected to a direct current load, at least a first power inductor electrically connected in series to a first terminal of the power supply side, and a rectifier operatively interposed between the power supply side and the output side. The rectifier includes a diode bridge configured to convert the alternating current from the source into a direct current towards the load, and one or more switches which can be selectively switched between an open configuration and a closed configuration in order to switch the rectifier between a first configuration, in which it interrupts the current flow towards the output side and charges the first inductor, and a second configuration, in which it allows the transfer of current to the load and discharges the first inductor. A second power inductor is electrically connected in series to a second terminal of the power supply side.

公开(公告)号：US11916494B2

公开(公告)日：2024-02-27

申请号：US17369483

申请日：2021-07-07

Applicant: DENSO CORPORATION

Inventor： Seiji Iyasu ,  Yuichi Handa

IPC: H02M7/5387 ,  H02M1/12 ,  H02M1/00

CPC classification number: H02M7/53871 ,  H02M1/007 ,  H02M1/0025 ,  H02M1/12

Abstract: A controller includes first and second setting sections. The first setting section sets a first duty-cycle, which is a percentage of a switch-on time period of a drive switch in one switching-cycle, by peak current-mode control to control a reactor current to be a current-command value generated based on an AC-voltage value. The second setting section sets a second duty-cycle, which is the percentage of the switch-on time period of the drive switch in one switching-cycle, by average-current-mode control to control an average value of the reactor current to be the current-command value. The controller operates the drive switch at the first duty-cycle when an absolute value of the AC-voltage value is equal to or more than a threshold less than an amplitude of the AC-voltage value, and operates the drive switch at the second duty-cycle when the absolute value of the AC-voltage value is less than the threshold.

公开(公告)号：US20230421074A1

公开(公告)日：2023-12-28

申请号：US18463399

申请日：2023-09-08

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xinyu YU ,  Xudong WANG ,  Kai XIN ,  Lei SHI

IPC: H02M7/487 ,  H02M1/12

CPC classification number: H02M7/487 ,  H02M1/12

Abstract: A three-level neutral point clamped inverter includes four switch units. When an average value of an output current of the three-level neutral point clamped inverter is greater than a first current threshold or less than a second current threshold, only one of the four switch units is controlled to perform a high-frequency operation, to reduce power consumption caused by a high-frequency operation. The average value of the output current is an average value of the output current of the three-level neutral point clamped inverter in a switching cycle. The first current threshold is a positive number, and the second current threshold is a negative number. Power consumption caused by the high-frequency operation of the switch unit in the inverter may be reduced, and electric energy conversion efficiency of the inverter may be improved. A time period in which two switch units perform complementary operations at high frequency is very small.

公开(公告)号：US20230409866A1

公开(公告)日：2023-12-21

申请号：US18204239

申请日：2023-05-31

Applicant: Strong Force IoT Portfolio 2016, LLC

Inventor： Charles Howard Cella ,  Gerald William Duffy, JR. ,  Jeffrey P. McGuckin ,  Mehul Desai

IPC: G06N3/006 ,  G05B19/418 ,  H04L67/12 ,  H04L1/00 ,  H04B17/309 ,  G06N5/046 ,  G05B23/02 ,  G06N3/02 ,  H04B17/318 ,  H04L67/1097 ,  G05B13/02 ,  G06Q30/02 ,  H04W4/70 ,  G06Q30/06 ,  H04W4/38 ,  H04B17/345 ,  H04B17/23 ,  G16Z99/00 ,  G01M13/028 ,  G01M13/04 ,  G01M13/045 ,  G06N3/084 ,  G06N3/088 ,  G06Q10/04 ,  G06Q10/0639 ,  G06Q50/00 ,  H04L1/18 ,  H04L1/1867 ,  H03M1/12 ,  G06F18/21 ,  G06N3/044 ,  G06N3/045 ,  G06N3/047 ,  G06N7/01 ,  G06V10/778 ,  H02M1/12 ,  G06N20/00

CPC classification number: G06N3/006 ,  G05B19/41875 ,  G05B19/4185 ,  H04L67/12 ,  G05B19/41865 ,  G05B19/4183 ,  H04L1/0002 ,  H04B17/309 ,  G06N5/046 ,  G05B23/0221 ,  G06N3/02 ,  G05B23/0294 ,  H04B17/318 ,  G05B19/41845 ,  G05B23/0283 ,  G05B23/0229 ,  H04L67/1097 ,  G05B13/028 ,  G05B23/0289 ,  G05B23/0291 ,  G05B19/4184 ,  G05B23/0297 ,  G05B23/0264 ,  G05B23/0286 ,  G05B23/024 ,  G06Q30/02 ,  H04W4/70 ,  G06Q30/06 ,  H04W4/38 ,  H04B17/345 ,  H04B17/23 ,  G16Z99/00 ,  G01M13/028 ,  G01M13/04 ,  G01M13/045 ,  G06N3/084 ,  G06N3/088 ,  G06Q10/04 ,  G06Q10/0639 ,  G06Q30/0278 ,  G06Q50/00 ,  H04L1/0041 ,  H04L1/18 ,  H04L1/1874 ,  H03M1/12 ,  G06F18/2178 ,  G06N3/044 ,  G06N3/045 ,  G06N3/047 ,  G06N7/01 ,  G06V10/7784 ,  H02M1/12 ,  G06N20/00 ,  G05B2219/32287 ,  H04L5/0064

Abstract: Systems for self-organizing data collection and storage in a manufacturing environment are disclosed. A system may include a data collector for handling a plurality of sensor inputs from sensors in the manufacturing system, wherein the plurality of sensor inputs is configured to sense at least one of: an operational mode, a fault mode, a maintenance mode, or a health status of at least one target system. The system may also include a self-organizing system for self-organizing a storage operation of the data, a data collection operation of the sensors, or a selection operation of the plurality of sensor inputs. The self-organizing system may organize a swarm of mobile data collectors to collect data from a plurality of target systems.

公开(公告)号：US20230396151A1

公开(公告)日：2023-12-07

申请号：US18297706

申请日：2023-04-10

Applicant: TAE Technologies, Inc.

Inventor： Mikhail Slepchenkov

IPC: H02M1/12 ,  H02M3/156 ,  H03K17/567

CPC classification number: H02M1/12 ,  H02M3/156 ,  H03K17/567 ,  H02M1/0048

Abstract: Systems and methods that facilitate multilevel hysteresis voltage control methods for cascaded multilevel voltage modulators having a plurality of power cells connected in series and has any positive integer number of output voltage levels to control any unipolar voltage on the load of the voltage modulator, and transfer electrical power from an electrical grid via AC/DC converters or directly from energy storage elements of the power cells to that load. A method of operational rotation of the power cells of a multilevel voltage modulator, which ensures an equal power sharing among the power cells and voltage balancing of the energy storage elements of the power cells of the modulator.

公开(公告)号：US20230386738A1

公开(公告)日：2023-11-30

申请号：US18323080

申请日：2023-05-24

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： JIAJIE DUAN ,  JIANXIONG YU ,  QIANG CHEN ,  CHENG LUO ,  HAN LI

IPC: H01F30/14 ,  H02M7/219

CPC classification number: H01F30/14 ,  H02M7/219 ,  H02M1/12

Abstract: The present disclosure provides a distributed phase-shifting transforming apparatus, including N transformer rectifier units, where each transformer rectifier unit includes two three-phase three-winding transformers and four rectifier circuits, each three-phase three-winding transformer includes first windings on the primary side and second windings and third windings on the secondary side, AC power output by the second windings and the third windings on the secondary side is output after being rectified by the rectifier circuits. Each transformer rectifier unit is configured such that: one set of the two first windings on the primary side and the two second windings on the secondary side is phase-shifted by 150 from each other, and the other set has the same phase angle; and the second windings and the third windings of each three-phase three-winding transformer are phase-shifted by 300 from each other. If N is greater than or equal to 2, the phase angle of the two first windings of the Nth transformer rectifier unit can be obtained by respectively phase-shifting the phase angle of the two first windings of the (N−1)th transformer rectifier unit by 15°/N. The distributed phase-shifting transforming apparatus has the advantages of small current harmonic distortion, simple process, low cost, high stability, and easy large-scale expansion.