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1. 发明申请

US20100265746A1 DRIVE CIRCUIT OF SEMICONDUCTOR DEVICE 失效
标题翻译：半导体器件的驱动电路
公开(公告)号：US20100265746A1
公开(公告)日：2010-10-21
申请号：US12760742
申请日：2010-04-15
申请人： Katsumi ISHIKAWA , Kazutoshi OGAWA , Masahiro NAGASU
发明人： Katsumi ISHIKAWA , Kazutoshi OGAWA , Masahiro NAGASU
IPC分类号： H02M7/537 , H03K3/00
CPC分类号： H03K17/08128 , H03K17/127 , H03K17/6877
摘要： The invention provides a switching circuit of a power semiconductor device having connected in parallel SiC diodes with a small recovery current, capable of significantly reducing turn-on loss and recovery loss without increasing the noise in the MHz band, and contributing to reducing the loss and noise of inverters. The present invention provides a switching circuit and an inverter circuit of a power semiconductor device comprising a module combining Si-IGBT and SiC diodes, wherein an on-gate resistance is set smaller than an off-gate resistance.
摘要翻译：本发明提供了一种功率半导体器件的开关电路，其具有并联的SiC二极管，具有小的恢复电流，能够显着降低导通损耗和恢复损耗，而不增加MHz带内的噪声，并有助于减少损耗，逆变器噪声。本发明提供一种功率半导体器件的开关电路和逆变器电路，该功率半导体器件包括组合Si-IGBT和SiC二极管的模块，其中栅极电阻被设定为小于截止栅极电阻。

2. 发明申请

US20120007533A1 POWER CONVERTER AND MOTOR DRIVING DEVICE USING THE SAME 有权
标题翻译：电动转换器和使用该电动机的电动机驱动装置
公开(公告)号：US20120007533A1
公开(公告)日：2012-01-12
申请号：US13176776
申请日：2011-07-06
申请人： Kazutoshi OGAWA , Katsumi Ishikawa
发明人： Kazutoshi OGAWA , Katsumi Ishikawa
IPC分类号： H02P27/04 , H02M11/00
CPC分类号： H02M7/5387 , H02M7/003 , Y02B70/1441
摘要： In order to reduce the average power of the ringing noise, the present invention provides a power converter comprising: an arm circuit including a high-voltage side switching device to which a first diode is connected in parallel and a low-voltage side switching device to which a second diode is connected in parallel; and a main power supply connected to a series circuit of the high-voltage side switching device and the low-voltage side switching device, wherein a connecting point between the high-voltage side switching device and the low-voltage side switching device is connected to a load, and a resonant frequency calculated from inductances of wirings of a closed circuit including the first diode, the second diode, and the main power supply and a capacitance across the first diode is different form that calculated from the inductances of the wirings and a capacitance across the second diode.
摘要翻译：为了降低振铃噪声的平均功率，本发明提供了一种功率变换器，包括：臂电路，包括并联连接有第一二极管的高压侧开关装置和低压侧开关装置，第二二极管并联连接; 以及连接到高压侧开关装置和低压侧开关装置的串联电路的主电源，其中高压侧开关装置和低压侧开关装置之间的连接点连接到负载和由包括第一二极管，第二二极管和主电源的闭合电路的电感的电感计算出的谐振频率以及跨第一二极管的电容的不同形式，其从布线的电感和电容跨越第二个二极管。

3. 发明申请

US20100207450A1 SWITCHING CIRCUIT AND POWER CONVERTER 失效
标题翻译：切换电路和电源转换器
公开(公告)号：US20100207450A1
公开(公告)日：2010-08-19
申请号：US12707180
申请日：2010-02-17
申请人： Kazutoshi OGAWA , Katsumi Ishikawa
发明人： Kazutoshi OGAWA , Katsumi Ishikawa
IPC分类号： H02J1/10
CPC分类号： H02M1/08 , Y10T307/50
摘要： The invention provides a switching circuit and a power converter having a built-in power source for a conduction control terminal even if they have a single-arm structure. In the switching circuit having a switching device and a conduction control terminal power source capacitor, a negative terminal of the capacitor is connected to a reference voltage terminal of a main power source and to the gate terminal selectively through a half-bridge circuit and a positive terminal of the capacitor is selectively connected to a positive terminal of the main power source and to a source terminal of the switching device through a half-bridge circuit. The capacitor is charged when the positive terminal is connected to the main power source and discharges when the negative terminal is connected to the gate terminal and the positive terminal is connected to the source terminal and applies voltage to the gate terminal of the switching device.
摘要翻译：本发明提供了一种开关电路和功率转换器，其具有用于导电控制端子的内置电源，即使它们具有单臂结构。在具有开关器件和导通控制端子电源电容器的开关电路中，电容器的负极端子通过半桥电路和正极连接到主电源的基准电压端子和栅极端子电容器的端子通过半桥电路选择性地连接到主电源的正极端子和开关器件的源极端子。当正极连接到主电源时，电容器被充电，当负极连接到栅极端子并且正极端子连接到源极端子并且向开关装置的栅极端子施加电压时，电容器被充电。

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