公开(公告)号：EP3018807B1

公开(公告)日：2018-12-26

申请号：EP13888759.1

申请日：2013-07-02

Applicant: Mitsubishi Electric Corporation

Inventor： SHIMOMUGI, Takuya ,  ARISAWA, Koichi ,  YAMAKAWA, Takashi ,  UEMURA, Keisuke ,  MATSUBARA, Noriyuki ,  KUSUBE, Shinsaku ,  YUASA, Kenta ,  TSUMURA, Akihiro

IPC: H02M3/158 ,  H02M1/32 ,  H03K17/16 ,  H03K17/74

CPC classification number: H02M1/32 ,  H02M3/156 ,  H02M3/158 ,  H02M2001/0051 ,  H02M2001/325 ,  H02P27/06 ,  H03K17/16 ,  H03K17/74 ,  Y02B70/1491

Abstract: A backflow preventing device includes a backflow preventing element 5 that is connected between a power supply 1 and a load 9 and that prevents electric current from flowing backward from the load 9 side toward the power supply 1 side, a commutating device 7 that performs a commutation operation for causing the electric current to flow to a commutation path connected in parallel with the backflow preventing element 5, and a controller 100 that sets a time for performing the commutation operation and causes the commutating device 7 to perform the commutation operation based on the set time. The backflow preventing device has a plurality of the commutation paths and has, for example, elements with small current-carrying capacities disposed in the commutation paths to achieve cost reduction and to cope with, for example, failures, thereby allowing for enhanced reliability for reducing recovery electric current.

公开(公告)号：EP1814216B1

公开(公告)日：2018-09-05

申请号：EP05806591.3

申请日：2005-11-15

Applicant: Kabushiki Kaisha Toshiba

Inventor： MOCHIKAWA, Hiroshi ,  KOYAMA, Tateo

IPC: H02M1/00 ,  H02M1/34 ,  H02M7/5387

CPC classification number: H02M7/5387 ,  H02M1/34 ,  H02M2001/0051 ,  H02M2001/344 ,  Y02B70/1491

Abstract: There are provided: sets of pairs of main circuit switching elements (4u), (4x) that supply power to a load, connected in series with a DC power source; free-wheel diodes (5u), (5x) connected in anti-parallel with these main circuit switching elements; and a reverse voltage application circuit (8) that applies reverse voltage smaller than the DC voltage source to the free-wheel diodes when these free-wheel diodes cut off. The reverse voltage application circuit includes a current suppression circuit (10) that suppresses the main circuit current flowing in the low-voltage DC voltage power source on reverse recovery of the free-wheel diodes.

公开(公告)号：EP2237402A4

公开(公告)日：2018-01-17

申请号：EP09706267

申请日：2009-01-21

Applicant: DAIKIN IND LTD

Inventor： MAEDA TOSHIYUKI ,  SEKIMOTO MORIMITSU ,  HIBINO HIROSHI

IPC: H02M7/5387 ,  H02M1/00 ,  H02M5/297 ,  H02M7/21 ,  H02M7/219 ,  H02M7/797 ,  H03K17/0814

CPC classification number: H02M7/797 ,  H02M7/5387 ,  H02M2001/0051 ,  H02M2007/2195 ,  H03K17/08142 ,  Y02B70/1408 ,  Y02B70/1483 ,  Y02B70/1491

Abstract: An inverter circuit (120) is configured so as to perform synchronous rectification by six switching elements (130). The switching element (130) is formed of an unipolar device (SiC MOSFET in this case) using a wideband gap semiconductor. The inverter circuit (120) uses the body diode (131) of SiC MOSFET (130) as a freewheeling diode during synchronous rectification.

公开(公告)号：EP3057218A4

公开(公告)日：2017-07-26

申请号：EP14852887

申请日：2014-03-14

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： KAWAMURA MAO ,  KATO MASAYUKI ,  TAKIKITA MAMORU

IPC: H02M7/06 ,  B60L11/18 ,  H02J7/02 ,  H02M1/00 ,  H02M3/335

CPC classification number: H02J7/14 ,  B60L11/1805 ,  B60L11/1812 ,  B60L11/1816 ,  B60L2210/10 ,  B60L2210/30 ,  H02J7/0077 ,  H02J7/022 ,  H02M3/3353 ,  H02M3/33553 ,  H02M7/066 ,  H02M2001/0051 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/92 ,  Y02T90/127 ,  Y02T90/14

Abstract: A Si diode is used as a rectifying diode on a transformer secondary side of an isolated DC/DC converter, and a high-voltage Schottky barrier diode made of a wide bandgap semiconductor is used as a free-wheeling diode arranged between a rectifier circuit and a smoothing reactor. Thus, there may be provided an in-vehicle charger capable of suppressing a diode recovery surge voltage with a circuit configuration that is simpler and suppressed in cost increase as compared to a case where a related-art synchronous rectifier circuit system is employed.

Abstract translation: 在隔离式DC / DC转换器的变压器次级侧上使用Si二极管作为整流二极管，并且使用宽带隙半导体制成的高压肖特基势垒二极管作为布置在整流器电路和整流器之间的续流二极管 平滑反应堆。 因此，与使用现有技术的同步整流电路系统的情况相比，可以提供一种车载充电器，该车载充电器能够以更简单且抑制成本增加的电路配置来抑制二极管恢复浪涌电压。

公开(公告)号：EP3018810A1

公开(公告)日：2016-05-11

申请号：EP14820605.5

申请日：2014-07-02

Applicant: Mitsubishi Electric Corporation

Inventor： SHIMOMUGI, Takuya ,  ARISAWA, Koichi ,  YAMAKAWA, Takashi ,  UEMURA, Keisuke ,  MATSUBARA, Noriyuki ,  KUSUBE, Shinsaku ,  YUASA, Kenta ,  TSUMURA, Akihiro

IPC: H02M3/155

CPC classification number: H02P6/28 ,  F24F7/007 ,  F25B31/02 ,  H02M1/34 ,  H02M1/4225 ,  H02M3/158 ,  H02M7/003 ,  H02M2001/0051 ,  H02M2001/342 ,  H02P27/06 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A backflow preventing device includes a backflow preventing element 5 that is connected between a power supply 1 and a load 9 and that prevents electric current from flowing backward from the load 9 side toward the power supply 1 side, and a commutating device 7 that performs a commutation operation for causing the electric current to flow to a commutation path connected in parallel with the backflow preventing element 5. A plurality of elements including at least one or more of elements constituting the commutating device 7 are configured as a module 80, so that, for example, the device can be reduced in size. Moreover, a simplified heat-dissipation design and a simplified air-duct design can be achieved.

公开(公告)号：EP2980973A1

公开(公告)日：2016-02-03

申请号：EP14775828.8

申请日：2014-03-18

Applicant: Mitsubishi Electric Corporation

Inventor： SHIMOMUGI, Takuya ,  ARISAWA, Koichi ,  YAMAKAWA, Takashi ,  UEMURA, Keisuke ,  KUSUBE, Shinsaku ,  YUASA, Kenta ,  TSUMURA, Akihiro

IPC: H02M3/155

CPC classification number: H02H3/003 ,  H02M1/4225 ,  H02M3/158 ,  H02M2001/0051 ,  H02M2001/342 ,  Y02B70/126 ,  Y02B70/1491

Abstract: Provided is a backflow preventing device, including: a backflow preventing element connected between a power source and a load, for preventing a backflow of a current from the load side to the power source side; a commutation device configured to perform a commutation operation of causing a current to flow through an other path connected in parallel to the backflow preventing element; and a controller for changing a pulse width of a commutation drive signal for controlling the commutation device to perform the commutation operation based on a current flowing through the backflow preventing element, and transmitting the commutation drive signal having the changed pulse width to the commutation device. For example, the controller transmits the pulse to the commutation device 7 only for a necessary time period so that the commutation device 7 performs the commutation operation, to thereby reduce electric power relating to the commutation operation not contributing to the power conversion, and save energy.

Abstract translation: 提供了一种防回流装置，包括：防回流元件，连接在电源和负载之间，用于防止电流从负载侧回流到电源侧; 换流装置，被配置为执行使电流流过与防回流元件并联连接的另一路径的换流操作; 以及控制器，用于基于流过防逆流元件的电流来改变用于控制换向设备执行换流操作的换向驱动信号的脉冲宽度，并且将具有改变的脉冲宽度的换向驱动信号传输到换向设备。 例如，控制器仅将脉冲发送到换流装置7一段必要的时间段，使得换流装置7执行换流操作，从而减少与换流操作相关的电力，而不会对功率转换作出贡献，并节省能量 。

公开(公告)号：EP2696487A4

公开(公告)日：2015-08-05

申请号：EP11862932

申请日：2011-04-08

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： SHIMOMUGI TAKUYA ,  ARISAWA KOICHI ,  SHINOMOTO YOSUKE ,  YAMAKAWA TAKASHI

IPC: H02M3/155 ,  H02M1/00 ,  H02M1/32 ,  H02M1/42 ,  H02M3/156 ,  H02M3/158 ,  H02M7/06 ,  H02M7/12 ,  H02P27/00 ,  H02P27/06

CPC classification number: H02M7/066 ,  H02M1/32 ,  H02M1/4225 ,  H02M3/156 ,  H02M3/1584 ,  H02M2001/0051 ,  H02M2001/325 ,  H02M2003/1586 ,  H02P27/00 ,  H02P27/06 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A power converting device includes a rectifying circuit 2 that rectifies voltage of an alternating-current power supply 1; smoothing means 8 that smoothes output voltage from the rectifying circuit 2; short-circuiting means 4 that is disposed more closely to the alternating-current power supply 1 than the smoothing means 8 and that short-circuits the alternating-current power supply 1 and controls at least one of electric current and voltage; a reactor 3 that is disposed more closely to the alternating-current power supply 1 than the short-circuiting means 4; one or more backflow preventing elements 5 that prevent electric current from flowing backward from a load 9 side toward the alternating-current power supply 1; commutating means 7 for performing a commutation operation for causing electric current to flow toward a different path that is connected in parallel with the one or more backflow preventing elements 5; malfunction detecting means 105 for detecting a malfunction of the commutating means 7; and switching control means 103 that performs operation control of the commutating means 7 in accordance with detection by the malfunction detecting means 105.

Abstract translation: 电力转换装置包括对交流电源1的电压进行整流的整流电路2; 平滑装置8，其对整流电路2的输出电压进行平滑; 短路装置4，其布置成比平滑装置8更靠近交流电源1，并且使交流电源1短路并控制电流和电压中的至少一个; 比短路装置4更靠近交流电源1设置的电抗器3; 一个或多个防止电流从负载9侧朝向交流电源1向后流动的防回流元件5; 换向装置7，用于进行换向运转，使电流流向与一个或多个防回流元件5并联连接的不同路径; 用于检测换向装置7的故障的故障检测装置105; 以及切换控制装置103，其根据故障检测装置105的检测来执行换向装置7的操作控制。

公开(公告)号：EP2884649A1

公开(公告)日：2015-06-17

申请号：EP13827584.7

申请日：2013-06-27

Applicant: Sharp Kabushiki Kaisha

Inventor： KIHARA Seiichiro

IPC: H02M7/48

CPC classification number: H02M7/537 ,  H02M1/38 ,  H02M7/5387 ,  H02M2001/0051 ,  Y02B70/1491

Abstract: An inverter drive circuit is equipped with a switching element for each of the upper and lower arms connected in series between the positive electrode and the negative electrode of a DC power source, and a driver circuit for controlling the switching on and off of the switching elements, according to a control signal imparted to each of the switching elements, has a load connected to the connection point between the switching elements of the upper and lower arms, converts the DC-power-source power into AC through the switching on and off, and supplies said power to the load. Therein, the driver circuit compares the voltage of each terminal at both ends of the switching elements, and controls on the basis of the comparison result and the control signal.

Abstract translation: 逆变器驱动电路配备有用于串联连接在直流电源的正极和负极之间的上臂和下臂的开关元件，以及用于控制开关元件的接通和断开的驱动电路 根据施加到每个开关元件的控制信号，具有连接到上下臂的开关元件之间的连接点的负载，通过接通和断开将DC电源功率转换为AC， 并向负载供电。 其中，驱动器电路比较开关元件两端的每个端子的电压，并且基于比较结果和控制信号进行控制。

公开(公告)号：EP2683065A4

公开(公告)日：2014-08-13

申请号：EP11860447

申请日：2011-03-04

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： ARISAWA KOICHI ,  SHIMOMUGI TAKUYA ,  SHINOMOTO YOSUKE

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M1/32 ,  H02M3/158 ,  H02M7/06 ,  H02M2001/0051 ,  Y02B70/1491 ,  Y10T307/50

公开(公告)号：EP2978117A4

公开(公告)日：2017-03-15

申请号：EP13879213

申请日：2013-03-19

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： ARISAWA KOICHI ,  SHIMOMUGI TAKUYA ,  YAMAKAWA TAKASHI ,  UEMURA KEISUKE ,  SHINOMOTO YOSUKE ,  YUASA KENTA ,  TSUMURA AKIHIRO ,  MATSUBARA NORIYUKI ,  KUSUBE SHINSAKU

IPC: H02M3/155 ,  H02M1/00 ,  H02M7/12

CPC classification number: H02M3/33546 ,  F25B31/006 ,  H02M3/155 ,  H02M2001/0051 ,  Y02B70/1491

Abstract: Provided is a power converter for converting electric power between a power source 1 and a load 9, including: a boosting device 2 including a boost rectifier 23 configured to prevent a backflow of a current from the load 9 side to the power source 1 side, the boosting device 2 being configured to change a voltage of electric power supplied from the power source 1 to a predetermined voltage; a commutation device 4 configured to perform a commutation operation of causing a current flowing through the boosting device 2 to flow through an other path; and a controller 100 configured to perform control related to the voltage change of the boosting device 2 and control related to the commutation operation of the commutation device 4, in which the commutation device 4 is configured to flow, when the commutation device 4 performs the commutation operation, a current generating a voltage causing reverse recovery of the boost rectifier 23 to the commutation device 4 side.

Abstract translation: 提供了一种用于在电源1和负载9之间转换电力的功率转换器，包括：升压装置2，包括升压整流器23，其被配置为防止电流从负载9侧逆流到电源1侧， 升压装置2被配置为将从电源1供给的电力的电压改变为预定电压; 换向装置4，被配置为执行使流过所述升压装置2的电流流过另一路径的换向动作; 以及控制器100，被配置为执行与升压装置2的电压变化相关的控制，以及当换向装置4执行换向时与换流装置4的换向运行有关的控制，换流装置4被配置为流动 产生导致升压整流器23向换向装置4侧反向恢复的电压的电流。