公开(公告)号：EP3402060A1

公开(公告)日：2018-11-14

申请号：EP18171074.0

申请日：2018-05-07

Applicant: OSRAM GmbH ,  OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI

Inventor： LUCCATO, Mr. Daniele ,  PELLIZZARI, Mr. Giancarlo

IPC: H02M1/34 ,  H02M1/00 ,  H02M3/335 ,  H02M3/337

CPC classification number: H02M3/33576 ,  H02M1/34 ,  H02M1/4266 ,  H02M3/335 ,  H02M3/33553 ,  H02M3/337 ,  H02M3/3376 ,  H02M2001/0029 ,  H02M2001/0058 ,  H02M2001/0064 ,  H05B33/0815 ,  H05B33/083

Abstract: There is described an asymmetric electronic half-bridge converter (10a). The electronic converter includes a positive input terminal (102a) and a negative input terminal (102b) for receiving a DC voltage ( V in ), and two output terminals (104a, 104b) for providing a regulated output voltage (V out ) or a regulated output current ( i out ). The electronic converter moreover includes a half-bridge (S 1 , S 2 ), a transformer (T) and a rectification and filter circuit (C RS , D, L o , C o ) . The half-bridge (S 1 , S 2 ) includes a first (S 1 ) and a second (S 2 ) electronic switch, connected in series between the two input terminals (102a, 102b), wherein a respective capacitance (C A1 , C A2 ) and a respective diode (D A1 , D A2 ) are associated with the first (S 1 ) and the second (S 2 ) electronic switch. A first terminal of the primary winding (T1) is connected to the intermediate point between the first (S 1 ) and the second (S 2 ) electronic switch, and a second terminal of the primary winding (T1) is connected via a first capacitor (C RP ) to the positive (102a) or negative (102b) input terminal. The rectification and filter circuit (C RS , D, L o , C o ) is connected between the secondary winding (T2) and the output terminals (104a, 104b).
Specifically, the electronic converter includes a snubber circuit (30) on the primary side of the electronic converter (10a), wherein the snubber circuit (30) includes a second capacitor (C S ), an inductor (L S ), a first diode (D 1 ) and a second diode (D 2 ).

公开(公告)号：EP2928062B1

公开(公告)日：2018-07-25

申请号：EP13858780.3

申请日：2013-11-06

Applicant: Kabushiki Kaisha Toshiba

Inventor： NAKAZAWA, Yosuke ,  MURAO, Takeru ,  TAMADA, Shunsuke

IPC: H02M7/797 ,  H02M7/12 ,  H02M7/48 ,  H02M7/49 ,  H02M7/25 ,  H02J3/36

CPC classification number: H02M7/06 ,  H02M1/32 ,  H02M1/36 ,  H02M5/10 ,  H02M7/46 ,  H02M7/483 ,  H02M2001/0064 ,  H02M2001/007 ,  H02M2007/4835

Abstract: An electric power conversion apparatus according to an embodiment includes, wherein when a constituent element constituted of a leg in which two switching elements provided with self-arc-extinguishing capability are connected in series, and a capacitor connected in parallel with the leg is made a converter unit, and a constituent element formed by connecting one or more converter units in series is made a phase arm, a phase arm on the positive side, a single-phase four-winding transformer, and a phase arm on the negative side are included in each of three phases, one end of the phase arm on the positive side is connected to the positive side of a secondary winding of the four-winding transformer, and the other end thereof is connected to a DC positive side terminal, one end of the phase arm on the negative side is connected to the positive side of a tertiary winding of the four-winding transformer, and the other end thereof is connected to a DC negative side terminal, the negative sides of the secondary windings and the negative sides of the tertiary windings of the four-winding transformers are connected to each other, and are connected to each other between the three phases, the negative sides of the primary windings of the four-winding transformers are connected to each other, quartic windings of the four-winding transformers are connected to each other in series to form delta connection, a first AC circuit breaker connected between the positive sides of the primary windings of the four-winding transformers, and a high-voltage AC power system; and a second AC circuit breaker, and rush current suppression resistors connected in series between the quartic windings of the four-winding transformers, and a low-voltage AC power supply.

公开(公告)号：EP3198712A4

公开(公告)日：2018-04-25

申请号：EP15843123

申请日：2015-09-18

Applicant: RINALDI VITO

Inventor： RINALDI VITO

IPC: H02M3/158 ,  H02M1/088

CPC classification number: H01F38/14 ,  H02M1/12 ,  H02M3/158 ,  H02M3/1582 ,  H02M3/24 ,  H02M2001/0064

Abstract: There is provided an electronic direct current transformer circuit configuration for transferring power from a source to a load using magnetic storage coupling, the circuit comprising: an input node adapted to receive an input alternating current power source having an input direct voltage waveform; the magnetic storage coupling unit comprising: a first set of windings coupled to a first switch, the first switch for receiving an input charging current associated with the input voltage; a second set of windings located in series or opposing connection with the first set of windings with a common magnetic path; a second switch connected at one end between the first and second set of windings and at another end to a common ground or common connection, the first and second switches having a switching frequency in a kilohertz range and switching between on and off in alternating modes; and an output node connected to the second set of windings, the output node adapted to provide an output DC power, the output power having an output voltage with an amplitude based on the input voltage and a voltage constant. Also, the direct current transformer behaves in the ideal sense in that it also allows power to flow from the load to the source. This reverse function works for alternating voltage (AC) and direct voltage (DC) circuits.

公开(公告)号：EP3155715B1

公开(公告)日：2018-03-14

申请号：EP15760416.6

申请日：2015-08-27

Applicant: Philips Lighting Holding B.V.

Inventor： CHEN, Zhi Quan

IPC: H02M3/335 ,  H02M1/36 ,  H02M1/00

CPC classification number: H02M3/33523 ,  H02M1/36 ,  H02M3/33553 ,  H02M3/33569 ,  H02M2001/0006 ,  H02M2001/0064

Abstract: Presented is a converter circuit having main switching circuiton a primary side of a transformer, for controlling supply of a current to a storage inductor on the primary side when the main switching circuit is conductive. The convertor circuit comprises: a control circuit operatively coupled to the main switching circuit and for controlling the main switching circuit, the control circuit comprising a control capacitor adapted to enable the control circuit and turn off the main switching circuit; an auxiliary inductor magnetically coupled to the storage inductor and adapted to trigger the control circuit to operate and turn off the main switching circuit in response to a voltage change in the storage inductor when the main switching circuit being conductive; and a charging circuit coupled between the auxiliary inductor and the control capacitor and adapted to enable the auxiliary inductor to charge the control capacitor. The charging circuit comprises first and second charging paths within the primary side between the auxiliary inductor and the control capacitor, the first charging path being conductive and the second charging path being conductive when a voltage across the auxiliary inductor is above a threshold value.

公开(公告)号：EP3211646A1

公开(公告)日：2017-08-30

申请号：EP17156634.2

申请日：2017-02-17

Applicant: Emerson Network Power Co. Ltd.

Inventor： WEI, Yunfeng ,  SHI, Yaming ,  XU, Fubin

IPC: H01F37/00 ,  H01F38/08 ,  H02M1/12 ,  H01F27/38 ,  H01F38/02 ,  H01F27/30

CPC classification number: H01F41/069 ,  H01F27/306 ,  H01F27/38 ,  H01F37/00 ,  H01F38/08 ,  H01F2038/026 ,  H02M1/14 ,  H02M3/1584 ,  H02M2001/0064

Abstract: Provided is an inductor winding method and an inductor winding device. The inductor winding method comprises steps of: A. dividing turns of coil of each winding of the inductor into a first winding and a second winding based on a preset ratio; B. winding the first winding on one of multiple magnetic columns, and winding the second winding on another one of the multiple magnetic columns which is different from the magnetic column on which the first winding is wound; and C. performing step A and step B cyclically until all the windings of the inductor are wound. The present disclosure has the following advantages. With a coupling inductor having an interleaving-wound structure, power frequency magnetic fluxes generated by magnetic lines in magnetic columns counteract one another, thereby solving the problem of high magnetic flux density in a magnetic core while achieving certain leakage inductance, increasing coupling coefficients between windings of coupling inductor and reducing power frequency magnetic flux density.

Abstract translation: 提供了一种电感器绕组方法和一种电感器绕组装置。 电感器绕组方法包括以下步骤：A.根据预设比例，将电感器的每个绕组的线圈匝数分成第一绕组和第二绕组; B.将第一绕组卷绕在多个磁柱中的一个磁柱上，并且将第二绕组卷绕在多个磁柱中与第一绕组所缠绕的磁柱不同的另一个上; 和C.循环执行步骤A和步骤B，直到电感器的所有绕组都被缠绕。 本公开具有以下优点。 利用具有交错卷绕结构的耦合电感器，由磁列中的磁线产生的工频磁通量相互抵消，由此解决了磁芯中的高磁通密度问题，同时实现了一定的漏电感，增加了绕组之间的耦合系数 的耦合电感和降低工频磁通密度。

公开(公告)号：EP3185406A1

公开(公告)日：2017-06-28

申请号：EP15382662.3

申请日：2015-12-24

Applicant: Fico Triad, S.A.

Inventor： ROVIRA MASIP, Guillem

IPC: H02M1/12 ,  H02M7/00 ,  H05K1/02 ,  H05K7/14 ,  H05K9/00

CPC classification number: B60L11/1812 ,  H02J7/0042 ,  H02J7/022 ,  H02M2001/0064 ,  H05K7/1432 ,  H05K7/20927

Abstract: On board charger (1) for electric vehicles, the on board charger (1) having an AC input (2) and a DC power output (3) and comprising a housing (4) that contains a power electronic circuit (5), a control electronic circuit (6), capacitors (7), inverters, at least one transformer (9), at least one input inductor (10) and at least one output inductor (11) inside to allow the conversion of input AC power into output DC power, the base of the housing (4) incorporating a cooling circuit (12), such that the at least one transformer (9), the at least one input inductor (10) and the at least one output inductor (11) are arranged in a compartment (13) delimited by several side walls and the base of the housing (4) of the on board charger (1) and at least one internal wall (14), the compartment (13) being at least partially filled with potting (15) which at least partially covers the at least one transformer (9), the at least one input inductor (10) and the at least one output inductor (11), these three elements constituting one magnetic block (8).

Abstract translation: 一种用于电动车辆的车载充电器（1），所述车载充电器（1）具有AC输入端（2）和DC功率输出端（3）并且包括包含功率电子电路（5）的壳体（4）， ，控制电子电路（6），电容器（7），逆变器，至少一个变压器（9），至少一个输入电感器（10）和至少一个输出电感器（11），以允许输入AC电力转换成输出 DC电源，包含冷却电路（12）的外壳（4）的底部，使得所述至少一个变压器（9），所述至少一个输入电感器（10）和所述至少一个输出电感器（11）是 ，其布置在由机载充电器（1）的壳体（4）的若干侧壁和基部以及至少一个内壁（14）界定的隔室（13）中，隔室（13）至少部分地填充有 至少部分地覆盖所述至少一个变压器（9），所述至少一个输入电感器（10）和所述至少一个输出电感器（11）的封装件（15），所述封装件 构成一个磁块（8）的三个元件。

公开(公告)号：EP2871761A4

公开(公告)日：2016-02-24

申请号：EP14809745

申请日：2014-03-11

Applicant: HUAWEI TECH CO LTD

Inventor： ZHENG FENG ,  PEI CHANGSHENG ,  ZHU YONGFA

IPC: H02M1/44 ,  H02M1/00 ,  H02M1/12 ,  H02M3/155

CPC classification number: H02M1/44 ,  H01F27/02 ,  H02M1/126 ,  H02M3/155 ,  H02M2001/0064 ,  H02M2001/123

Abstract: The present invention provides a voltage conversion device and a method for adjusting common mode noise impedance, which relates to the circuit field, and enables a common mode impedance value of a noise source and an impedance value of an EMI filter to enter a mismatch state, so as to reduce a restriction on design of the EMI filter, so that a size of the EMI filter is smaller and utilization efficiency of the EMI filter is higher. The method is: adjusting an impedance value of a common mode noise source by adjusting a balanced impedance value in a balanced winding on a voltage conversion device, so as to enable the impedance value of the common mode noise source and an impedance value of an EMI filter to enter a mismatch state. Embodiments of the present invention are used to enable an impedance value of a common mode noise source and an impedance value of an EMI filter to enter a mismatch state.

Abstract translation: 本发明提供了一种与电路领域相关的用于调节共模噪声阻抗的电压转换装置和方法，并且使得噪声源的共模阻抗值和EMI滤波器的阻抗值能够进入失配状态， 以减少对EMI滤波器的设计的限制，使得EMI滤波器的尺寸更小，并且EMI滤波器的利用效率更高。 该方法是：通过调整电压转换装置的平衡绕组中的平衡阻抗值来调整共模噪声源的阻抗值，以使共模噪声源的阻抗值和EMI的阻抗值 过滤器进入失配状态。 本发明的实施例用于使共模噪声源的阻抗值和EMI滤波器的阻抗值进入失配状态。

公开(公告)号：EP2942863A4

公开(公告)日：2016-01-20

申请号：EP14783756

申请日：2014-01-09

Applicant: HUAWEI TECH CO LTD

Inventor： HU YANSHEN ,  TORRICO-BASCOPÉ GROVER VICTOR ,  FU DIANBO ,  LIU YUNFENG

IPC: H02M7/483 ,  H02M1/00 ,  H02M7/487 ,  H02M7/49

CPC classification number: H02M7/5395 ,  H02M1/12 ,  H02M7/487 ,  H02M7/49 ,  H02M2001/0064 ,  H02M2001/007

Abstract: Embodiments of the present invention provide a multi-level inverter and a power supply system, which relate to the field of electronics and can simplify a circuit structure. The multi-level inverter includes: two N-level inverter units, where pulse width modulation waves of the two N-level inverter units are staggered by a phase of 180 degrees, and N is an integer greater than or equal to 3; a direct current power source module, where an output end thereof is connected to input ends of the two N-level inverter units; a transformer, where the transformer includes a primary side and a secondary side, an inductor of the primary side and an inductor of the secondary side are coupled, and one end of the inductor of the primary side and one end of the inductor of the secondary side are connected to output ends of the two N-level inverter units respectively, so that the two N-level inverter units are reversely coupled, and the other end of the inductor of the primary side and the other end of the inductor of the secondary side are connected, so as to output W levels at a junction between the inductors, where W=2N-1; and a filter, where one end of the filter is connected to the junction between the two coupled inductors, and the other end of the filter is grounded. The multi-level inverter and the power supply system are configured to convert a direct current into an alternating current.

公开(公告)号：EP2955827A1

公开(公告)日：2015-12-16

申请号：EP15169855.2

申请日：2015-05-29

Applicant: ABB Technology Oy

Inventor： Talja, Markku ,  Hakala, Veikko

IPC: H02M1/36 ,  H02M7/797 ,  H02M1/12 ,  H02M1/00

CPC classification number: H02J7/0052 ,  H02J7/345 ,  H02M1/126 ,  H02M1/36 ,  H02M7/797 ,  H02M2001/0064

Abstract: A method for charging a capacitance connected between DC poles of a three-phase active rectifier/inverter and a converter apparatus comprising a three-phase active rectifier/inverter (10) having a capacitance (C DC ) connected between DC poles thereof, a three-phase filter (20) and a three-phase stepdown transformer (T), wherein the active rectifier/inverter (10) is configured to charge the capacitance (C DC ) connected between the DC poles of the active rectifier/inverter with a rectified secondary voltage of the transformer (T) until a voltage of the capacitance reaches a first predetermined threshold voltage, and, in response to the voltage of the capacitance (C DC ) connected between the DC poles of the active rectifier/inverter (10) reaching the first predetermined threshold voltage, to charge the capacitance (C DC ) with a boosted rectified secondary voltage of the transformer (T) until the voltage of the capacitance (C DC ) reaches a second predetermined threshold voltage higher than the first predetermined threshold voltage.

Abstract translation: 一种用于充电连接的DC磁极之间及其相连接的三相有源整流器/逆变器和转换器装置，其包括具有电容（C DC）的三相有源整流器/逆变器（10）的DC极间的电容的方法，三 -PHASE过滤器（20）和一个三相降压变压器（T），worin有源整流器/逆变器（10）被配置为连接在有源整流器/逆变器的DC磁极之间具有整流的电容（C DC）充电 变压器（T），直到电容的电压的次级电压达到第一预定阈值电压，并且，响应于连接在有源整流器的DC磁极之间的电容（C DC）的电压/逆变器（10）到达 第一预定阈值电压，所述电容（C DC）与所述变压器（T），直到电容（C DC）的电压的升压整流次级电压充电达到第二预定阈值电压高 大于第一预定阈值电压。

公开(公告)号：EP2827484A4

公开(公告)日：2015-03-18

申请号：EP13761993

申请日：2013-01-24

Applicant: SANKEN ELECTRIC CO LTD ,  NAT UNIV CORP SHIMANE UNIV

Inventor： TERUI HIROMITSU ,  ASUKE HIDEKI ,  TAKANO HIDEHARU ,  YAMAMOTO MASAYOSHI ,  IMAOKA JUN

IPC: H02M3/158 ,  H01F3/14 ,  H01F30/00

CPC classification number: H02M3/33507 ,  H01F3/14 ,  H01F27/24 ,  H02M3/1584 ,  H02M2001/0064

Abstract: A DC-DC converter includes a coupling transformer that has windings 11 and 12, switches (Tr1, Tr2) that are connected through the windings to both ends of a DC power source Vi, a series circuit that is connected to both ends of each of the switches and includes a diode and a smoothing capacitor, and a controller 100 that alternately turns on the switches Tr1 and Tr2 and simultaneously turns on the switches Tr1 and Tr2 for a predetermined overlapping period on every half cycle. The coupling transformer 1 includes an I-shaped core 4, two E-shaped cores 2 and 3 holding the I-shaped core 4 between them, and a gap 5 formed between each of center legs 2a and 3a of the E-shaped cores 2 and 3 and the I-shaped core 4. The windings 11 and 12 are wound around the I-shaped core 4.

Abstract translation: DC-DC转换器包括具有绕组11和12的耦合变压器，通过绕组连接到直流电源Vi两端的开关（Tr1，Tr2），连接到每个的两端的串联电路 开关并包括二极管和平滑电容器，以及控制器100，其交替地接通开关Tr1和Tr2，并且在每半个周期同时使开关Tr1和Tr2导通预定的重叠周期。 耦合变压器1包括I形磁芯4，在其间保持I形磁心4的两个E形磁芯2和3以及形成在E形磁芯2的每个中心支腿2a和3a之间的间隙5 绕组11和12缠绕在I形芯4上。