公开(公告)号：US20140307495A1

公开(公告)日：2014-10-16

申请号：US14253125

申请日：2014-04-15

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA ,  Yoshiyuki HAMANAKA ,  Masatoshi TAGUCHI ,  Tsuneo MAEBARA

IPC: H03K17/94 ,  H02H3/08 ,  H02M7/5387

CPC classification number: H02H3/08 ,  H02M7/5387 ,  H03K17/0828 ,  H03K17/165 ,  H03K17/168 ,  H03K2217/0081

Abstract: In a driver having a reference point with a reference potential for driving a target switching element having an on-off control terminal, a charging path electrically connects the on-off control terminal of the target switching element and a driving power source for charging the on-off control terminal of the target switching element. A bypass path electrically connects the on-off control terminal of the target switching element and the driving power source. A storage has a first conductive end electrically connected to the bypass path and a second conductive end electrically connected to the reference point of the target switching element, and is configured for storing therein charge sent through the bypass path.

Abstract translation: 在具有用于驱动具有开 - 关控制端子的目标开关元件的参考电位的参考点的驱动器中，充电路径将目标开关元件的通断控制端和驱动电源电连接，用于对导通 目标开关元件的控制端子。 旁通路将目标开关元件的通断控制端子与驱动电源电连接。 存储器具有电连接到旁路路径的第一导电端和电连接到目标开关元件的参考点的第二导电端，并且被配置为存储通过旁路路径发送的电荷。

公开(公告)号：US20140077846A1

公开(公告)日：2014-03-20

申请号：US14015376

申请日：2013-08-30

Applicant: DENSO CORPORATION

Inventor： Masatoshi TAGUCHI ,  Tsuneo MAEBARA

IPC: H03K3/01

CPC classification number: H03K3/01 ,  H02M1/08

Abstract: A switching element driver IC has one or more photocouplers, a driver circuit, a detection circuit and a setting circuit. The photocoupler receives setting data transmitted from a microcomputer, and transmits the received setting data to the setting circuit, wherein an input side as a high voltage side is electrically insulated from an output side as a low voltage side in the photocoupler. The setting circuit transmits the setting data to the driver circuit and the detection circuit. The driver circuit and the detection circuit operate on the basis of the received setting data. The setting data can be provided to the driver circuit and the detection circuit through the photocoupler and the setting circuit. This structure makes it possible to suppress increasing the number of terminals at the high voltage side of the switching element driver IC, and decrease the entire size of the switching element driver IC.

Abstract translation: 开关元件驱动器IC具有一个或多个光电耦合器，驱动器电路，检测电路和设置电路。 光耦合器接收从微计算机发送的设置数据，并将接收到的设置数据发送到设置电路，其中作为高电压侧的输入侧在光电耦合器中作为低电压侧的输出侧电绝缘。 设置电路将设置数据发送到驱动器电路和检测电路。 驱动电路和检测电路根据接收的设定数据进行动作。 设置数据可以通过光电耦合器和设置电路提供给驱动电路和检测电路。 这种结构使得可以抑制开关元件驱动器IC的高压侧的端子数增加，并且减小开关元件驱动器IC的整体尺寸。