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：US09160329B2

公开(公告)日：2015-10-13

申请号：US14154645

申请日：2014-01-14

Applicant: DENSO CORPORATION

Inventor： Yousuke Watanabe ,  Junichi Fukuta ,  Tsuneo Maebara

IPC: H03B1/00 ,  H03K3/00 ,  H03K17/18

CPC classification number: H03K17/18

Abstract: A circuit control device controlling a switching circuit which has a semiconductor switching element, having a main controller, a drive signal output portion and an obtaining portion. The main controller outputs a drive control signal. The drive signal output portion receives the drive control signal and outputs a drive signal to the switching element, the switching element acting on the basis of the drive signal. The obtaining portion obtains circuit information on status of the switching circuit in synchronization with the drive control signal.

Abstract translation: 控制具有半导体开关元件的开关电路的电路控制装置，具有主控制器，驱动信号输出部分和获取部分。 主控制器输出驱动控制信号。 驱动信号输出部分接收驱动控制信号并向开关元件输出驱动信号，开关元件基于驱动信号而起作用。 获取部分与驱动控制信号同步地获得关于开关电路的状态的电路信息。

公开(公告)号：US20130229209A1

公开(公告)日：2013-09-05

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: H03K17/56

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。