公开(公告)号：US09787197B2

公开(公告)日：2017-10-10

申请号：US15295429

申请日：2016-10-17

申请人： TDK CORPORATION

发明人： Wataru Nakahori

IPC分类号： H02M3/335 ,  H02M3/337 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H02M3/3376 ,  H02M2001/0048 ,  H02M2001/0058 ,  Y02B70/1491

摘要： A switching power supply unit includes input terminals, output terminals, first to third primary windings and first to third secondary windings, a switching circuit, a rectifying smoothing circuit, and a driver. In the switching circuit, first and second switching devices, third and fourth switching devices, and first and second capacitors, coupled in series to one another, are disposed in parallel between the input terminals. In the rectifying smoothing circuit, first to third arms, each having two of rectifying devices disposed in series, are disposed in parallel between the output terminals, the first secondary winding is coupled between the first and the second arms to form an H-bridge coupling, the second and the third secondary windings are coupled between the second and the third arms to form an H-bridge coupling, and a choke coil is disposed between the first to the third arms and an output capacitor.

公开(公告)号：US08941458B2

公开(公告)日：2015-01-27

申请号：US13866571

申请日：2013-04-19

申请人： TDK Corporation

发明人： Yasuhiro Hara ,  Masaki Sato ,  Torao Misono ,  Wataru Nakahori ,  Haruhiko Sanae

IPC分类号： H01F5/00

CPC分类号： H01F5/003 ,  H01F27/2804 ,  H01F27/306 ,  H01F2027/2819

摘要： In the coil unit 1A of the power supply device 1, the U-shaped plate 51C constituting the U-shaped terminal 50 is used to electrically connect the print-coil substrates 30, 40. Further, the print-coil substrates 30, 40 constituting the coil unit 1A can be connected to the main circuit substrate 20 also by using the U-shaped terminal 50. Here, the print-coil substrate 30 is connected to the print-coil substrate 40 by using the U-shaped terminal 50, by which soldering for fixing the U-shaped terminal 50 is performed from the lower face side of the print-coil substrate 30. Therefore, as compared with a conventional constitution where soldering is performed from both sides of the stacked print-coil substrates, the print coils can be connected by soldering only from one side face, thus making it possible to reduce the amount of work necessary for connecting the print coils.

摘要翻译： 在电源装置1的线圈单元1A中，构成U形端子50的U形板51C用于电连接印刷线圈基板30,40。此外，构成的印刷线圈基板30,40 线圈单元1A也可以通过使用U形端子50连接到主电路基板20.这里，打印线圈基板30通过使用U形端子50与印刷线圈基板40连接，通过 从印刷线圈基板30的下表面侧进行用于固定U形端子50的焊接。因此，与从堆叠的印刷线圈基板的两面进行焊接的常规结构相比，印刷 线圈可以通过仅从一个侧面焊接来连接，从而可以减少连接打印线圈所需的工作量。

公开(公告)号：US09859799B2

公开(公告)日：2018-01-02

申请号：US15412611

申请日：2017-01-23

申请人： TDK CORPORATION

发明人： Wataru Nakahori

IPC分类号： H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H01F27/40 ,  H01F2027/408 ,  H01F2038/006 ,  H02M1/08 ,  H02M3/285 ,  H02M3/33569 ,  H02M2001/0054 ,  Y02B70/1491

摘要： A switching power supply unit includes an N-number (N: an integer of 2 or greater) of transformers; an N-number of inverter circuits; a rectifying smoothing circuit including a {2×(N+1)}-number of rectifying devices, a choke coil, and a capacitor; an additional winding disposed to be interlinked with each of magnetic paths formed in the N-number of transformers; and a driver. In the rectifying smoothing circuit, a (N+1)-number of arms each have two of the rectifying devices, and are disposed in parallel to one another between the pair of output terminals, a secondary winding in each of the N-number of transformers is coupled between adjacent ones of the (N+1)-number of arms to individually form an H-bridge coupling, and the additional winding is coupled in series to one or more of the secondary windings in the N-number of transformers.

公开(公告)号：US09768699B2

公开(公告)日：2017-09-19

申请号：US15164347

申请日：2016-05-25

申请人： TDK CORPORATION

发明人： Wataru Nakahori

IPC分类号： H02M3/335 ,  H02M1/08 ,  H02M3/28

CPC分类号： H02M3/33507 ,  H02M1/08 ,  H02M3/285 ,  H02M3/33569

摘要： Provided is a switching power supply unit that includes a pair of input terminals, a pair of output terminals, two transformers, two inverter circuits, a rectifying smoothing circuit, and a driver. The rectifying smoothing circuit includes eight rectifying devices, a first choke coil, a second choke coil, and a capacitance. In the rectifying smoothing circuit, two full-bridge rectifying circuits are provided that each include a first arm and a second arm. The first arm and the second arm each have two of the eight rectifying devices. Secondary windings of the respective two transformers are each coupled to corresponding one of the two full-bridge rectifying circuits to form an H-bridge coupling. Coupling relation of the first arm, the second arm, the first choke coil, the second choke coil, and the capacitance is appropriately defined.

公开(公告)号：US09445525B2

公开(公告)日：2016-09-13

申请号：US14477401

申请日：2014-09-04

申请人： TDK CORPORATION

发明人： Yasuhiro Hara ,  Wataru Nakahori ,  Hiroshi Miyazaki ,  Haruhiko Sanae

IPC分类号： H05K7/20

CPC分类号： H05K7/20254 ,  H05K7/209 ,  H05K7/20927

摘要： In a power supply device 1, a first space R1 and a second space R2 are delimited, a coil component 20 is arranged in the first space R1, and heat-generating components and components having weak resistance to heat are arranged in the second space R2. The power supply device 1 is configured to contain the coil component 20 in the first space R1 so that ambient air of the coil component 20 can contact a first side wall 72, which constitutes the first space R1, making it possible to expect discharge of heat to coolant in a coolant channel W via the first side wall 72. Therefore, heat can be discharged from the ambient air of the coil component, the temperature of which has been raised by heat generation, towards the coolant efficiently.

摘要翻译： 在供电装置1中，第一空间R1和第二空间R2被限定，第一空间R1中设置有线圈部件20，在第二空间R2中配置有耐热性弱的发热部件和部件 。 电源装置1被配置为将线圈部件20容纳在第一空间R1中，使得线圈部件20的环境空气可以接触构成第一空间R1的第一侧壁72，使得可以期望放热 通过第一侧壁72在冷却剂通道W中的冷却剂。因此，可以有效地将热量从线圈部件的环境空气排出，其温度已经通过发热而升高。