公开(公告)号：US12132315B2

公开(公告)日：2024-10-29

申请号：US17798078

申请日：2021-06-06

Applicant: ELECTRIC POWER RESEARCH INSTITUTE. CHINA SOUTHERN POWER GRID ,  CHINA SOUTHERN POWER GRID

Inventor： Hong Rao ,  Changyue Zou ,  Shukai Xu ,  Yan Li ,  Xiaobin Zhao ,  Weiwei Li ,  Junjie Feng ,  Shuangfei Yang ,  Ting Hou ,  Lingfei Li ,  Yuke Ji

IPC: H02J3/01 ,  H02J3/18 ,  H02J3/34 ,  H02J3/36 ,  H02M1/00 ,  H02M1/12 ,  H02M7/483

CPC classification number: H02J3/34 ,  H02J3/01 ,  H02J3/1807 ,  H02J3/36 ,  H02M1/0048 ,  H02M1/12 ,  H02M7/4835 ,  H02J2003/365

Abstract: The present disclosure provides a parameter design method for a series passive impedance adapter applicable to a VSC-HVDC transmission system, to resolve the technical problem that high-frequency resonance may occur when impedance of a VSC-HVDC transmission system is mismatched with that of a sending-end or receiving-end grid. A parameter design goal of the present disclosure is that reactive power consumed by a series passive impedance adapter is not more than A times rated power of a converter, and a loss of the series passive impedance adapter in a fundamental wave is B times the rated power of the converter. The parameter design method for a series passive impedance adapter applicable to a VSC-HVDC transmission system in the present disclosure can realize a positive impedance characteristic within a concerned frequency band and completely eliminate a risk of harmonic resonance.

公开(公告)号：US12094841B2

公开(公告)日：2024-09-17

申请号：US17306870

申请日：2021-05-03

Applicant: Oracle International Corporation

Inventor： Michael Henry Soltau Dayringer ,  Anatoly Yakovlev ,  Ji Eun Jang ,  Hesam Fathi Moghadam ,  David Hopkins

IPC: H01L23/64 ,  G05F1/46 ,  H01L23/00 ,  H01L23/522 ,  H02M1/14 ,  H02M3/158 ,  H01F27/24 ,  H02M1/00

CPC classification number: H01L23/645 ,  G05F1/462 ,  H01L23/5227 ,  H01L24/17 ,  H02M1/14 ,  H02M3/158 ,  H01F27/24 ,  H01L2924/1206 ,  H02M1/0048

Abstract: Distributions of on-chip inductors for monolithic voltage regulation are described. On-chip voltage regulation may be provided by integrated voltage regulators (IVRs), such as a buck converter with integrated inductors. On-chip inductors may be placed to ensure optimal voltage regulation for high power density applications. With this technology, integrated circuits may have many independent voltage domains for fine-grained dynamic voltage and frequency scaling that allows for higher overall power efficiency for the system.

公开(公告)号：US20240275261A1

公开(公告)日：2024-08-15

申请号：US18568720

申请日：2022-06-07

Applicant: Gamesa Electric, S.A. Unipersonal ,  Universidad Carlos III de Madrid

Inventor： Jorge Jiménez Giménez ,  Gonzalo Moreno Huerta ,  Pablo Moreno-Torres Concha ,  Antonio Lazaro Blanco

IPC: H02M1/00 ,  H02M1/088 ,  H02M3/158

CPC classification number: H02M1/0048 ,  H02M1/088 ,  H02M3/158

Abstract: A method of operating a switching power converter is provided wherein the power converter inclues includes an inductor and switches and is operable in a modulation mode in which a current through the inductor is modulated by operating the power converter in a repeating sequence of predetermined switching states. The method includes controlling a current waveform of the current through the inductor in the modulation mode by controlling the transition between the switching states of the sequence. The current waveform is controlled to include within one period of the current waveform a first section of rising current corresponding to a first switching state, a second section corresponding to a second switching state, wherein the second section of the current waveform does not reach or cross a zero value of the current, and a third section of falling current corresponding to a third switching state.

公开(公告)号：US20240235364A1

公开(公告)日：2024-07-11

申请号：US18615010

申请日：2024-03-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takeshi KOGURE ,  Tomohide ARAMATA ,  Toshiki MATSUI ,  Yuuki FUKUDA

IPC: H02M1/00 ,  H02M3/07

CPC classification number: H02M1/0048 ,  H02M3/07

Abstract: A tracker module includes an integrated circuit, a first capacitor and a second capacitor arranged in or on a module laminate. The integrated circuit includes at least one switch in a switched-capacitor circuit and at least one switch in a supply modulator. The switched-capacitor circuit is configured to generate a plurality of discrete voltages. The supply modulator is configured to generate an output voltage by selectively switching among the plurality of discrete voltages based on a control signal. The first capacitor is a flying capacitor of the switched-capacitor circuit. The second capacitor is a smoothing capacitor of the switched-capacitor circuit. In a plan view of the module laminate, the first capacitor is arranged closer to the integrated circuit than the capacitor.

公开(公告)号：US12027989B2

公开(公告)日：2024-07-02

申请号：US17755142

申请日：2020-10-22

Applicant: Epinovatech AB

Inventor： Martin Andreas Olsson

IPC: H02M3/158 ,  B60L50/60 ,  B60L53/24 ,  H01L29/778 ,  H02J7/02 ,  H02M1/00 ,  H02M7/06 ,  H02M7/21 ,  H02M7/217 ,  H03K17/10 ,  H03K17/16

CPC classification number: H02M7/217 ,  B60L50/60 ,  B60L53/24 ,  H01L29/778 ,  H02J7/02 ,  H02M1/0048 ,  H02M3/158 ,  H02M7/06 ,  H02M7/21 ,  H03K17/102 ,  H03K17/163 ,  B60L2210/30 ,  B60L2210/40 ,  H01M2220/20 ,  H01M2220/30 ,  H02M1/0045 ,  H02M1/007

Abstract: There is provided an AC-DC converter circuit (100) for high power charging of an electrical battery. The circuit comprises an input rectifier comprising a first node and a second node. The input rectifier (110) is configured to receive an AC voltage at the first node (112) and provide a rectified voltage at the second node (114). The circuit further comprises a first transistor (120), comprising a first gate node (122), a first source node (124), and a first drain node (126). The first drain node is connected to the second node of the input rectifier. The first gate node is connected to a ground node (170). The circuit further comprises a second transistor (130), comprising a second gate node (132), a second source node (134), and a second drain node (136). The second drain node is connected to the first source node. The second transistor materially corresponds to the first transistor. The circuit further comprises a duty cycle control unit (140) connected to the second gate node for providing the second transistor with a switching waveform. The circuit further comprises an output rectifier (150) connected to the second source node or the first source node. The circuit further comprises an output electronic filter (160) connected to the second source node or an output node (151) of the output rectifier. An AC-DC converter device, a method for charging an electrical battery, and a regenerative braking system is also provided.

公开(公告)号：US20240195282A1

公开(公告)日：2024-06-13

申请号：US18583563

申请日：2024-02-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tatsuya HOSOTANI ,  Yoshihiro FUJIWARA

IPC: H02M1/00 ,  H02M1/088 ,  H02M3/155

CPC classification number: H02M1/0048 ,  H02M3/155 ,  H02M1/088

Abstract: A power supply system includes an MPU, multiple power conversion circuits, and multiple extended-control circuits. The MPU supplies a digital switching driving signal to the power conversion circuit, and supplies a digital switching driving signal to the power conversion circuit. The extended-control circuit, which includes a CR circuit, generates a switching driving signal which is delayed with respect to the digital switching driving signal, and supplies the switching driving signal to the power conversion circuit. The extended-control circuit, which includes a CR circuit, generates a switching driving signal which is delayed with respect to the digital switching driving signal, and supplies the switching driving signal to the power conversion circuit.

公开(公告)号：US20240171073A1

公开(公告)日：2024-05-23

申请号：US18427548

申请日：2024-01-30

Applicant: Delta Electronics, Inc.

Inventor： Yahong Xiong ,  Shaojun Chen ,  Da Jin ,  Qinghua Su

IPC: H02M3/158 ,  H02M1/00 ,  H02M3/00 ,  H05K1/11 ,  H05K1/18 ,  H05K5/02 ,  H05K5/06

CPC classification number: H02M3/158 ,  H05K1/115 ,  H05K1/181 ,  H05K1/185 ,  H05K5/0247 ,  H05K5/065 ,  H02M1/0048 ,  H02M3/003 ,  H05K2201/1003 ,  H05K2201/10166 ,  H05K2201/1031 ,  H05K2201/10522

Abstract: A voltage regulator module is provided. The voltage regulator module includes a circuit board unit, at least one switch circuit, a magnetic core assembly and at least one first conductive member. The circuit board unit includes a top layer, a plurality of inner layers and a bottom layer. The at least one switch circuit is disposed on the top layer. The magnetic core assembly is disposed on at least one of the plurality of inner layers and embedded in the circuit board unit. The magnetic core assembly forms at least one magnetic loop. The at least one first conductive member is electrically connected with the at least one switch circuit for passing through a current of the at least one switch circuit. The current passes through the at least one magnetic loop to form an inductor.

公开(公告)号：US20240162803A1

公开(公告)日：2024-05-16

申请号：US18485921

申请日：2023-10-12

Applicant: Redwood Materials, Inc.

Inventor： Patrick Chapman ,  Jaesoo Byoun ,  Dan Chown ,  David Okawa ,  Anton Hunt ,  Isaac Thomas

IPC: H02M1/00 ,  H02M3/04 ,  H02M7/537

CPC classification number: H02M1/0048 ,  H02M3/04 ,  H02M7/537

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for applying controllable current to portions of an electrodeposition device via a series-in-parallel-out rectifier circuit. In particular, the rectifier circuit includes a front-end stage that includes an alternating current-to-direct current converter circuit to generate one or more direct current signals from an alternating current signal of an input terminal. Additionally, the rectifier circuit includes a back-end stage including a plurality of direct current-to-direct current converter circuits that convert the one or more direct current signals into a plurality of child direct current signals. Furthermore, the plurality of direct current-to-direct current converter circuits of the disclosed series-in-parallel-out rectifier circuit are in physical contact with an anode of the electrodeposition device at a plurality of different positions to apply separate currents to different portions of the anode.

公开(公告)号：US20240128888A1

公开(公告)日：2024-04-18

申请号：US18276652

申请日：2021-03-31

Applicant: Mitsubishi Electric Corporation

Inventor： Akito NAKAYAMA ,  Takuya KAJIYAMA

IPC: H02M7/483 ,  H02M1/00 ,  H02M1/084

CPC classification number: H02M7/4835 ,  H02M1/0048 ,  H02M1/084 ,  H02M7/4833

Abstract: A power converter includes at least one arm for each phase, and each arm is formed by connecting, in series, a plurality of converter cells each having a plurality of semiconductor switching elements and a DC capacitor. A control device generates, for each arm, an arm voltage command for the plurality of convener cells, to control the power converter. The control device includes a voltage information calculation unit for calculating a voltage information value on the basis of voltage of at least one DC capacitor in the power converter, and a overall voltage control unit for changing a voltage total value of all the DC capacitors so that the voltage information value becomes close to a set lower limit value.

公开(公告)号：US20240079882A1

公开(公告)日：2024-03-07

申请号：US18507622

申请日：2023-11-13

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Longting Sun ,  Tiansan Lin ,  Bo Yu ,  Yongbing Gao

IPC: H02J3/46 ,  H02J3/00 ,  H02M1/00

CPC classification number: H02J3/46 ,  H02J3/0012 ,  H02M1/0048 ,  H02M1/007 ,  H02M1/008 ,  H02J2300/24

Abstract: This application discloses a photovoltaic power generation system control method, a photovoltaic power generation system, and a switching apparatus, to reduce a loss of the photovoltaic power generation system. The switching apparatus includes: a switching unit, a detection unit, and a controller. The switching unit includes a first output end, a second output end, a first input end connected to each first DC/DC converter in a one-to-one correspondence, and a second input end connected to each second DC/DC converter in a one-to-one correspondence. The first output end is connected to an input end of a first DC/AC converter, and the second output end is connected to an input end of a second DC/AC converter. The detection unit is separately connected to the first DC/AC converter, the second DC/AC converter, a plurality of first DC/DC converters, and a plurality of second DC/DC converters.