公开(公告)号：US20130301318A1

公开(公告)日：2013-11-14

申请号：US13845726

申请日：2013-03-18

Applicant: DENSO CORPORATION

Inventor： Yousuke ASAKO ,  Tsuneo MAEBARA

IPC: H02H9/02

CPC classification number: H02H9/02 ,  H03K17/0828 ,  H03K2017/0806 ,  H03K2217/0027

Abstract: The present application provides a drive unit for a switching element, the driving unit having a function that is capable of promptly detecting the flow of excess current. The unit is usable for an electrical rotating machine. A drive unit for a switching element, comprising: a sense terminal output current detecting means for detecting an output current of a sense terminal that outputs a minute current having correlation with a current flowing between an input terminal and an output terminal of a switching element; a switching element drive control means for restricting the driving of the switching element when the output current detected by the sense terminal output current detecting means exceeds a predetermined threshold value; and a threshold changing means for changing the threshold value on the basis of a difference of electric potential between the input terminal and the output terminal of the switching element.

Abstract translation: 本申请提供了一种用于开关元件的驱动单元，该驱动单元具有能够及时检测过电流的功能。 该单元可用于旋转电机。 一种用于开关元件的驱动单元，包括：感测端子输出电流检测装置，用于检测输出与在开关元件的输入端子和输出端子之间流动的电流相关的微小电流的感测端子的输出电流; 开关元件驱动控制装置，用于当由感测端子输出电流检测装置检测到的输出电流超过预定阈值时限制开关元件的驱动; 以及阈值改变装置，用于根据开关元件的输入端子和输出端子之间的电位差来改变阈值。

公开(公告)号：US20150078039A1

公开(公告)日：2015-03-19

申请号：US14490258

申请日：2014-09-18

Applicant: DENSO CORPORATION

Inventor： Syun MIYAUCHI ,  Tsuneo MAEBARA ,  Yousuke ASAKO

IPC: H02M3/335

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.

Abstract translation: 绝缘电力供给装置是用于电力转换电路，其包括彼此串联连接的上臂开关元件和下臂开关元件的至少一个串联连接。 绝缘电源装置包括分别向上臂和下臂开关元件提供驱动电压的上臂和下臂变压器，并进行控制，使得上臂的特定一个次级线圈的输出电压 并且下臂变压器保持在目标电压。

公开(公告)号：US20140369099A1

公开(公告)日：2014-12-18

申请号：US14307872

申请日：2014-06-18

Applicant: DENSO CORPORATION

Inventor： Yousuke ASAKO

IPC: H02M7/537

CPC classification number: H02M7/003 ,  H02M7/797 ,  H02M2001/327 ,  H05K7/20927

Abstract: A power converter includes a body including a switching element; a plurality of semiconductor modules each having a control terminal projected from the body; a circuit board controlling the switching element; a cooler that cools the semiconductor modules; a smoothing capacitor smoothing direct-current voltage applied to the switching element; a discharge resistor disposed on a surface of the circuit board and electrically connected parallel to the smoothing capacitor. The semiconductor modules are mounted on the circuit board with the control terminal, the discharge resistor includes a first connecting portion at one end of the discharge resistor in a longitudinal direction thereof and a second connecting portion at an other end of the discharge resistor in the longitudinal direction, and the first connecting portion is connected to the control terminal via a wiring pattern provided on the surface of the circuit board.

Abstract translation: 电力转换器包括：一个包括一个开关元件的主体; 多个半导体模块，每个半导体模块具有从主体突出的控制端子; 控制开关元件的电路板; 冷却半导体模块的冷却器; 平滑电容器，平滑施加到所述开关元件的直流电压; 放电电阻器，设置在所述电路板的表面上并且平行于所述平滑电容器电连接。 半导体模块通过控制端子安装在电路板上，放电电阻器包括沿放电电阻器的纵向方向的一端的第一连接部分和放电电阻器的纵向另一端的第二连接部分 方向，并且第一连接部分经由设置在电路板的表面上的布线图案连接到控制端子。