公开(公告)号：US20140306788A1

公开(公告)日：2014-10-16

申请号：US14249539

申请日：2014-04-10

Applicant: DENSO CORPORATION

Inventor： Kazuhiro UMETANI

IPC: H01F27/28 ,  H01F27/24

CPC classification number: H01F27/385 ,  H02M1/126 ,  H02M2001/123

Abstract: A filter component is provided with a first winding wire, a second winding wire having a separate electric current supply from the first winding wire, and a third winding wire connected in series with the first winding wire. The first, second, and third winding wires are wound on a magnetic core. The magnetic core has a shape that allows a formation of a first magnetic path having the first and second winding wires interlinked therewith without having the third winding wire interlinked therewith, and a formation of a second magnetic path having the first and third winding wires interlinked therewith without having the second winding wire interlinked therewith. Further, the electric current flow directions of the first and second winding wires are opposite and the electric current flow directions of the first and third winding wires are the same.

Abstract translation: 滤波器部件设置有第一绕组线，具有来自第一绕组线的独立电流源的第二绕组线和与第一绕组线串联连接的第三绕组线。 第一，第二和第三绕组线缠绕在磁芯上。 磁芯具有能够形成具有与第一和第二绕组线互连的第一和第二绕组线的第一磁路的形状，而不使第三绕组线与其互连，并且形成具有与第一和第二绕组线相互连接的第一和第三绕组线的第二磁路 而不使第二绕组线与其互连。 此外，第一和第二绕组的电流流动方向相反，并且第一和第三绕组的电流流动方向相同。

公开(公告)号：US20140285241A1

公开(公告)日：2014-09-25

申请号：US14163330

申请日：2014-01-24

Applicant: DENSO CORPORATION

Inventor： Kazuhiro UMETANI

IPC: H03K17/16

CPC classification number: H03K17/162

Abstract: A driver circuit for a semiconductor switching device includes a drive power source, a capacitor and four switches, which form a bridge circuit. The capacitor is provided between the four switches. In one cycle of application of a voltage to a gate of the semiconductor switching device to turn on the semiconductor switch, the first and the second switches, which are diagonal, are turned off and the third and the fourth switches, which are diagonal, are turned on to charge the capacitor. Then only the first switch is turned on to apply the voltage to the gate, and lastly only the second switch is turned on to discharge the capacitor thereby to apply a negative voltage to the gate of the semiconductor switching device.

Abstract translation: 用于半导体开关器件的驱动器电路包括形成桥接电路的驱动电源，电容器和四个开关。 电容器设置在四个开关之间。 在向半导体开关装置的栅极施加电压以接通半导体开关的一个周期中，对角线的第一和第二开关被截止，并且对角线的第三和第四开关是 打开电容器充电。 然后只有第一开关导通以将电压施加到栅极，并且最后仅打开第二开关以放电电容器，从而向半导体开关器件的栅极施加负电压。

公开(公告)号：US20140218012A1

公开(公告)日：2014-08-07

申请号：US14108932

申请日：2013-12-17

Applicant: DENSO CORPORATION

Inventor： Kazuhiro UMETANI

IPC: G01R33/02

CPC classification number: G01R33/02 ,  G01R33/1215

Abstract: A detector includes a detection winding, a detection winding measurement section, and a detection section. A magnetic core has a hole penetrating the magnetic core along a non-uniform cross section. The detection winding includes a wire inserted into the hole and surrounding a periphery of a detection region that is a part of the non-uniform cross section and has a magnetic flux density different from an average magnetic flux density of the non-uniform cross section. The detection winding measurement section performs a measurement relating to an electromotive force induced by the detection winding. The detection section detects a magnetic bias, a magnetic saturation, or an amount of magnetic flux in the magnetic core based on a measurement result of the detection winding measurement section.

Abstract translation: 检测器包括检测绕组，检测绕组测量部分和检测部分。 磁芯具有沿着不均匀横截面穿透磁芯的孔。 检测绕组包括插入到孔中并且围绕作为不均匀横截面的一部分的检测区域的周边的线，并且具有与非均匀横截面的平均磁通密度不同的磁通密度。 检测绕组测量部分执行与由检测绕组引起的电动势有关的测量。 检测部根据检测线圈测量部的测定结果来检测磁芯的磁偏压，磁饱和度或磁通量。

公开(公告)号：US20140204635A1

公开(公告)日：2014-07-24

申请号：US14155510

申请日：2014-01-15

Applicant: DENSO CORPORATION

Inventor： Kazuhiro UMETANI

IPC: H02M1/34

CPC classification number: H02M1/34 ,  H02M1/4225 ,  H02M2001/342 ,  H02M2001/346 ,  Y02B70/126 ,  Y02B70/1491

Abstract: An AC-DC converter includes two series circuits, an inductor, and a common snubber circuit. Each series circuit includes a switch and a current block device. The block device blocks a current from its high potential side to its low potential side when the first device is closed and allows the current from the low potential side to the high potential side when the first device is opened. The inductor is interposed between a first connection point between the switch and the block device of one series circuit and a second connection point between the switch and the block device of the other series circuit. The common snubber circuit is connected between each of the first connection point and the second connection point and at least one of both ends of the one series circuit.

Abstract translation: AC-DC转换器包括两个串联电路，一个电感器和一个公共缓冲电路。 每个串联电路包括开关和当前块装置。 当第一装置关闭时，块装置阻挡从其高电位侧到其低电位侧的电流，并且当第一装置打开时允许从低电位侧到高电位侧的电流。 电感器插入在一个串联电路的开关和块装置之间的第一连接点和另一串联电路的开关与块装置之间的第二连接点之间。 公共缓冲电路连接在第一连接点和第二连接点之间以及一个串联电路的两端中的至少一个之间。