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公开(公告)号：US20240339920A1
公开(公告)日：2024-10-10
申请号：US18624817
申请日：2024-04-02
发明人： Hong Liu , Baihui Song , Wen Zhang
CPC分类号： H02M1/007 , H02M1/0043 , H02M1/14 , H02M3/33576 , H02M7/217
摘要： A two-stage converter and a control method thereof are provided. The two-stage converter includes a first stage conversion unit, a capacitor unit and a second stage conversion unit. The first stage conversion unit receives a first power and converts the first power into a second power. The capacitor unit is electrically connected to the first stage conversion unit to receive the second power. The second stage conversion unit is electrically connected to the capacitor unit to receive a power transmitted by the capacitor unit. The first stage conversion unit receives a switch signal which has a switching cycle. In at least one said switching cycle, the two-stage converter performs a first control mode in which an operation state of the second stage conversion unit is adjusted according to an operation state of the first stage conversion unit.
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2.发明授权公开(公告)号：US12113431B2
公开(公告)日：2024-10-08
申请号：US17822439
申请日：2022-08-26
发明人： Guoqiao Shen , Jinfa Zhang
CPC分类号： H02M1/0095 , H02M1/327 , H02M3/003 , H02M3/07 , H02M3/1582 , H02M3/1584 , H05K7/20909
摘要： Disclosed is a flying capacitor three-level converter, including a plurality of circuit units, wherein each of the plurality of circuit units includes: an input capacitor; a bridge arm, electrically connected with the input capacitor in parallel, wherein the bridge arm includes a first switch, a second switch, a third switch and a fourth switch electrically and sequentially connected in series; and a flying capacitor unit, wherein the flying capacitor unit includes a first capacitor and a second capacitor, and the first capacitor and the second capacitor are electrically connected in parallel and electrically connected with a series branch in parallel, and the series branch includes the second switch and the third switch; wherein the input capacitor, the first switch, the first capacitor and the fourth switch form a first switching loop, and the second capacitor, the second switch and the third switch form a second switching loop.
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公开(公告)号：US20240333142A1
公开(公告)日：2024-10-03
申请号：US18613745
申请日：2024-03-22
发明人： Wen Zhang , Hong Liu , Baihui Song
CPC分类号： H02M3/015 , H02M3/33573
摘要： A control circuit for a resonant conversion circuit is provided. The resonant conversion circuit includes a switching circuit, a resonant network and a rectifier circuit. Firstly, a starting point of an operating trajectory with a plurality of trajectory segments is determined according to a sampling data sampled at a first switching time point. Then, the starting point of each trajectory segment is determined. The operating mode is determined according to the starting point of the corresponding trajectory segment, and a curve and an end point of the trajectory segment are predicted according to the operating mode. Then, the duration time of each trajectory segment is calculated. The end point of the operating trajectory is determined according to a control instruction. According to the execution time between the starting point and the end point of the operating trajectory, a next switching time point is controlled.
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公开(公告)号：US20240333025A1
公开(公告)日：2024-10-03
申请号：US18393578
申请日：2023-12-21
发明人： Sanyuan OUYANG , Hong LIU , Weiqiang ZHANG , Baihui SONG
摘要： The disclosure discloses a power supply system and a power supply method. The power supply system includes a first sub-system including at least two first power supply devices and a first load, the first power supply devices for powering the first load; a second sub-system including a second power supply device and a second load, the second power supply device for powering the second load; and a connection unit configured to control electrical connection or electrical disconnection between the first power supply devices and the second load; wherein power supply availability of the first sub-system is higher than power supply availability of the second sub-system. The disclosure provides more power supply availabilities through few types of power supply structures, which facilitates application scenarios such as data center to flexibly adjust the power supply structures according to business, and save cost.
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公开(公告)号：US20240283250A1
公开(公告)日：2024-08-22
申请号：US18434749
申请日：2024-02-06
发明人： Feidong XU , Lei JIA , Mengyu LIANG , Juiyuan HSU
CPC分类号： H02J3/322 , B60L53/16 , B60L53/62 , B60L53/63 , B60L53/66 , B60L55/00 , H02J7/0068 , H02J2207/20
摘要： The application provides an interaction system between an electric vehicle and a power grid, including the electric vehicle including: a battery, and an on board charger including a bidirectional power conversion circuit connected to the battery and an on board charger controller; an electric vehicle supply equipment including: a charge and discharge connection device including a first contactor connected between the power grid and the bidirectional power conversion circuit; and an interaction communication system including: an electric vehicle communication controller, a supply equipment communication controller, and the on board charger controller controlling the bidirectional power conversion circuit; wherein, the supply equipment communication controller indirectly communicates with the on board charger controller via the electric vehicle communication controller through a first communication channel, and the supply equipment communication controller further directly communicates with the on board charger through a second communication channel.
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公开(公告)号：US20240234004A9
公开(公告)日：2024-07-11
申请号：US18360839
申请日：2023-07-28
发明人： Teng LIU , Jianxing DONG , Xiaohu LI , Liang WANG , Lei CHEN
CPC分类号： H01F27/022 , H01F27/24 , H01F27/327 , H01F41/127
摘要： The present disclosure discloses a planar magnetic element and a manufacturing method thereof. The planar magnetic element includes: a housing, with an internal space; a core, accommodated in the internal space of the housing, and the core including at least one limb; at least one planar winding corresponding to the limb; and potting adhesive, filled in all air gaps in the internal space of the magnetic element, and blocking the clearance and creepage path between the planar winding and the core and/or between the two planar windings. The present disclosure may significantly reduce the volume of the magnetic element and greatly increase the partial discharge extinction voltage, thereby reducing the partial discharge risk of the magnetic element and improving the reliability. Moreover, the compact structure of the planar magnetic element is conducive to improving the power density of the module.
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公开(公告)号：US12027909B2
公开(公告)日：2024-07-02
申请号：US17457918
申请日：2021-12-07
发明人： Guoqiao Shen , Ning He , Changyong Wang
CPC分类号： H02J7/342 , H02J1/102 , H02J2207/20 , H02J2300/24 , H02M1/007 , H02M1/0093 , H02M3/1582
摘要： The application discloses a power conversion system and a controlling method of the same. The power conversion system includes: n choppers, comprising n switching arms connected in parallel, each chopper including: the switching arm, an inductor having a first end connected to a midpoint of the switching arm, and a first capacitor connected in parallel to the switching arm; and n DC components corresponding to the n choppers with a one-to-one relation, wherein one of the DC components is a DC power supply or a DC load, first ends of the DC components are connected together, and a second end of each of the DC components is connected to a second ends of the inductor of the corresponding chopper, where n is a natural number of 2 or more.
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公开(公告)号：US12002615B2
公开(公告)日：2024-06-04
申请号：US17024720
申请日：2020-09-18
发明人： Shouyu Hong , Ganyu Zhou , Zhiheng Fu , Yan Tong , Qingdong Chen , Xiaoni Xin , Jinping Zhou , Pengkai Ji , Yiqing Ye
CPC分类号： H01F27/2804 , H01F27/24 , H01F27/324 , H01F41/0206 , H01F41/041 , H01F41/125
摘要： The present disclosure provides a magnetic element, a manufacturing method of a magnetic element, and a power module. The magnetic element includes: a magnetic core; and a metal wiring layer, where the metal wiring layer is flat wound on a surface of at least one section of a magnetic column of the magnetic core, the metal wiring layer includes a vertical portion and a horizontal portion, and at least part of the vertical portion forms a multi-turn metal winding by mechanically dividing.
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公开(公告)号：US20240170972A1
公开(公告)日：2024-05-23
申请号：US18385289
申请日：2023-10-30
发明人： Teng Liu , Jianxing Dong , Xiaohu Li , Ming Wang
CPC分类号： H02J3/381 , H02J3/32 , H02J2300/28
摘要： An electrical system includes a first conduction terminal, a second conduction terminal, N power units and N supporting devices. The N power units are electrically connected between the first conduction terminal and the second conduction terminal in series, and N is an integer greater than or equal to 2. Each of the N supporting devices includes a conductive part and a support part. Each of the N power units is disposed on the corresponding conductive part. The conductive part is electrically connected with a power terminal of one of the N power units or electrically connected with a reference potential of the electrical system. The support part is connected between the corresponding conductive part and a ground potential.
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公开(公告)号：US11984250B2
公开(公告)日：2024-05-14
申请号：US17684459
申请日：2022-03-02
发明人： Mingzhun Zhang , Jinping Zhou , Min Zhou , Shouyu Hong , Qingdong Chen
CPC分类号： H01F27/263 , H01F27/02 , H01F27/24 , H01F27/2823 , H02M3/003 , H02M1/0064 , H02M3/04 , H02M3/1586
摘要： A multi-winding inductor includes a magnetic core including three magnetic columns and two windings. Each winding includes a first, a second and a third portions. The first magnetic column is arranged between the first portion of the first winding and the first portion of the second winding; the second magnetic column is arranged on one side of the first portion of the first winding and the third portion of the second winding; and the third magnetic column is arranged between the third portion of the first winding and the third portion of the second winding. The first and the second portions of two windings respectively form pins on opposite sides of the magnetic core.
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