公开(公告)号：US09461638B2

公开(公告)日：2016-10-04

申请号：US13785804

申请日：2013-03-05

Applicant: DENSO CORPORATION

Inventor： Syun Miyauchi ,  Junichi Fukuta ,  Tomoyuki Muraho ,  Takeyasu Komatsu ,  Tsuneo Maebara

IPC: H03B1/00 ,  H03K3/00 ,  H03K17/56 ,  H03K17/14

CPC classification number: H03K17/56 ,  H03K17/14

Abstract: A drive unit includes a charging unit which charges an opening/closing control terminal of a switching element to switch a drive state. The switching element includes a sensing terminal which outputs a minute current having a correlation with current flowing between input and output terminals of the switching element. The sensing terminal and either of the output terminal or a member having a potential equal to that of the output terminal are connected via a sensing resistor. The drive unit further includes an active gate control unit which changes a charge rate based on comparison of sensing voltage, which is a potential difference across the sensing resistor, or a rate of change of the sensing voltage with a specified value. The specified value is set based on individual-difference information of the switching element which indicates a characteristic, which affects the sensing voltage, when the drive state is switched.

Abstract translation: 驱动单元包括充电单元，其对开关元件的打开/关闭控制端进行充电以切换驱动状态。 开关元件包括感测端子，其输出与在开关元件的输入和输出端子之间流动的电流相关的微小电流。 感测端子和输出端子中的任一个或具有与输出端子的电位相等的电位的部件经由感测电阻器连接。 驱动单元还包括有源栅极控制单元，其基于感测电压的比较（其是感测电阻器两端的电位差）或感测电压的变化率与指定值的比较来改变电荷率。 基于开关元件的个别差异信息来设定指定值，该开关元件表示当切换驱动状态时影响感测电压的特性。

公开(公告)号：US09712038B2

公开(公告)日：2017-07-18

申请号：US14495240

申请日：2014-09-24

Applicant: DENSO CORPORATION

Inventor： Syun Miyauchi ,  Tsuneo Maebara ,  Yusuke Shindo ,  Junichi Fukuta

IPC: H02M1/084 ,  H01F30/10 ,  H02M3/335 ,  H02M1/00 ,  H03K17/691

CPC classification number: H02M1/084 ,  H01F30/10 ,  H02M3/33523 ,  H02M2001/0006 ,  H03K17/691

Abstract: An insulated power supply apparatus includes an upper arm transformer which has a primary side coil and a secondary side coil, a lower arm transformer which has a primary side coil and a secondary side coil, and a power supply control section which has a voltage control switching element and an integrated circuit which turns on or off the voltage control switching element. At least one of the upper arm transformer and the lower arm transformer is adjacent to the power supply control section when viewing a surface of the substrate from a front thereof. An electric path transfers output voltage of the secondary side coil of the transformer adjacent to the power supply control section, to the integrated circuit. The integrated circuit turns on or off the voltage control switching element to perform feedback control so that the output voltage detected via the electric path reaches a target voltage.

公开(公告)号：US09712037B2

公开(公告)日：2017-07-18

申请号：US14490258

申请日：2014-09-18

Applicant: DENSO CORPORATION

Inventor： Syun Miyauchi ,  Tsuneo Maebara ,  Yousuke Asako

IPC: H02M1/32 ,  H02M1/08 ,  H02M7/5387 ,  H03K17/06 ,  H03K17/0812 ,  H03K17/61 ,  H03K17/691 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M1/08 ,  H02M1/32 ,  H02M3/33523 ,  H02M7/5387 ,  H02M2001/0009 ,  H02M2001/0054 ,  H03K17/06 ,  H03K17/08128 ,  H03K17/61 ,  H03K17/691 ,  H03K2217/0036 ,  Y02B70/1491

Abstract: An insulated power supply apparatus is for a power conversion circuit including at least one series connection of an upper arm switching element and a lower arm switching element connected in series to each other. The insulated power supply apparatus includes an upper arm and lower arm transformers for supplying a driving voltage to the upper arm and lower arm switching elements, respectively, and performs control such that the output voltage of a specific one of the secondary coils of the upper arm and lower arm transformers is kept at a target voltage.

公开(公告)号：US09724999B2

公开(公告)日：2017-08-08

申请号：US14495128

申请日：2014-09-24

Applicant: DENSO CORPORATION

Inventor： Syun Miyauchi ,  Tsuneo Maebara ,  Yusuke Shindo ,  Junichi Fukuta

IPC: H03K17/691 ,  B60L11/18 ,  B60L15/00 ,  H03K17/61 ,  H02M7/00

CPC classification number: B60L11/1803 ,  B60L11/1864 ,  B60L15/007 ,  H02M7/003 ,  H03K17/61 ,  H03K17/691 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7061

Abstract: Upper arm connection sections and lower arm connection sections are provided in parallel. An upper arm transformer and a power supply are provided in an area opposed to the lower arm connection sections with respect to the upper arm connection sections. A power supply control section is provided in at least one of an area opposed to the upper arm connection sections with respect to the upper arm transformer, and an area which is sandwiched between at least one of the upper and lower connection sections closest to one side of the substrate positioned in a direction in which the upper arm connection sections are arranged, and the one side. The lower arm transformer is provided in an area opposed to the upper arm connection sections with respect to the lower arm connection sections. The lower arm transformer is common to at least two of the lower arm switching elements.