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1. 发明申请

US20130070487A1 DRIVE CIRCUIT 有权
标题翻译：驱动电路
公开(公告)号：US20130070487A1
公开(公告)日：2013-03-21
申请号：US13608359
申请日：2012-09-10
申请人： Keiichiro OZAWA , Akio Iwabuchi , Yasushi Tasaka , Ryuichi Furukoshi
发明人： Keiichiro OZAWA , Akio Iwabuchi , Yasushi Tasaka , Ryuichi Furukoshi
IPC分类号： H02M3/335
CPC分类号： H02M1/36 , H02M3/33523 , H02M2001/0006
摘要： A drive circuit drives a normally-on high-side switch Q1 and a normally-off low-side switch Q2 that form a series circuit connected in parallel with a DC power source. The drive circuit includes a controller 10 that outputs a control signal to turn on/off the high- and low-side switches, a rectifier D2 having a first end connected to a connection point of the high- and low-side switches, a capacitor C2 that is connected to a second end of the rectifier and a first end of the DC power source and serves as a power source for the controller, and a driver (A1, AND1, Q3, Q4) that turns on/off the high- and low-side switches according to the control signal from the controller and a voltage from the capacitor.
摘要翻译：驱动电路驱动形成与直流电源并联连接的串联电路的常开高侧开关Q1和常开低侧开关Q2。驱动电路包括：控制器10，其输出用于接通/关闭高侧和低侧开关的控制信号;整流器D2，其具有连接到高侧开关和低侧开关的连接点的第一端;电容器 C2连接到整流器的第二端和DC电源的第一端，并且用作控制器的电源;以及驱动器（A1，AND1，Q3，Q4）和低侧开关根据来自控制器的控制信号和来自电容器的电压。

2. 发明申请

US20120075890A1 GATE DRIVER AND SWITCHING POWER SOURCE APPARATUS 有权
标题翻译：门驱动器和开关电源装置
公开(公告)号：US20120075890A1
公开(公告)日：2012-03-29
申请号：US13238256
申请日：2011-09-21
申请人： Keiichiro OZAWA
发明人： Keiichiro OZAWA
IPC分类号： H02M3/335 , H03K3/00
CPC分类号： H02M1/08 , H02M3/33523 , H03K17/04123 , H03K17/691 , H03K2217/0081
摘要： A gate driver of a switching element includes a first capacitor having a first end connected to a DC power source, a first switch having a first electrode connected to the first end of the first capacitor and a second electrode connected to a negative electrode of the DC power source, a second switch having a third electrode connected to the second electrode and the negative electrode of the DC power source and a fourth electrode connected to the first capacitor, a second capacitor connected in parallel with the third and fourth electrodes of the second switch and having a first end connected to the DC power source, and a negative voltage controller connecting the gate of the switching element to the second end of the first capacitor and a second end of the second capacitor when the switching element is turned off.
摘要翻译：开关元件的栅极驱动器包括具有连接到DC电源的第一端的第一电容器，具有连接到第一电容器的第一端的第一电极的第一开关和连接到DC的负电极的第二电极电源，具有连接到第二电极的第三电极和直流电源的负极的第二开关和连接到第一电容器的第四电极，与第二开关的第三和第四电极并联连接的第二电容器并且具有连接到所述DC电源的第一端，以及负极电压控制器，当所述开关元件断开时，所述负电压控制器将所述开关元件的栅极连接到所述第一电容器的第二端和所述第二电容器的第二端。

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