公开(公告)号：EP2309631B1

公开(公告)日：2018-11-21

申请号：EP09770039.7

申请日：2009-06-15

申请人： Sanken Electric Co., Ltd. ,  National University Corporation Nagoya University

发明人： ASUKE, Hideki ,  TAKANO, Hideharu ,  TSURUYA, Mamoru ,  YAMAMOTO, Masayoshi ,  KAWASHIMA, Takahiro ,  FUNABIKI, Shigeyuki

IPC分类号： H02M1/34 ,  H02M3/158

CPC分类号： H02M3/1584 ,  H02M1/34 ,  H02M2001/348

摘要： In order to achieve an object to reduce a surge voltage and suppress noise generation, the present invention provides a DC-DC converter with a snubber circuit, which boosts a voltage Vi of a DC power supply. The snubber circuit includes: a series circuit connected to both ends of a smoothing capacitor Co and including a snubber capacitor Cs and a snubber resistor Rs; a snubber diode Ds1 connected to a node at which the snubber capacitor Cs and the snubber resistor Rs are connected, and to a node at which a reactor Lr1 and an additional winding 1b of a transformer T1 are connected; and a snubber diode Ds2 connected to the node at which the snubber capacitor Cs and the snubber resistor Rs are connected, and to a node at which a reactor Lr2 and an additional winding 2b of a transformer T2 are connected.

公开(公告)号：EP2827484B1

公开(公告)日：2019-10-16

申请号：EP13761993.8

申请日：2013-01-24

申请人： Sanken Electric Co., Ltd. ,  National University Corporation Nagoya University

发明人： TERUI, Hiromitsu ,  ASUKE, Hideki ,  TAKANO, Hideharu ,  YAMAMOTO, Masayoshi ,  IMAOKA, Jun

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

公开(公告)号：EP2827484A1

公开(公告)日：2015-01-21

申请号：EP13761993.8

申请日：2013-01-24

申请人： Sanken Electric Co., Ltd. ,  National University Corporation Shimane University

发明人： TERUI, Hiromitsu ,  ASUKE, Hideki ,  TAKANO, Hideharu ,  YAMAMOTO, Masayoshi ,  IMAOKA, Jun

IPC分类号： H02M3/155 ,  H01F30/00

摘要： 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.

摘要翻译： 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DC电源Vi的两端的开关（Tr1，Tr2），串联电路，其连接到每个绕组的两端 开关，并且包括二极管和平滑电容器;以及控制器100，其交替地导通开关Tr1和Tr2，并且在每个半周期上以预定的重叠周期同时接通开关Tr1和Tr2。 耦合变压器1包括I形铁芯4，在其间夹持I形铁芯4的两个E形铁芯2和3以及形成在E形铁芯2的每个中心支柱2a和3a之间的间隙5 3和I形铁芯4.绕组11和12围绕I形铁芯4缠绕。