公开(公告)号：US06721151B2

公开(公告)日：2004-04-13

申请号：US09808152

申请日：2001-03-15

申请人： Kiyoshi Goto ,  Yoichi Kunimoto ,  Yoshihisa Ishigami

发明人： Kiyoshi Goto ,  Yoichi Kunimoto ,  Yoshihisa Ishigami

IPC分类号： H02H300

CPC分类号： H02H3/33 ,  H02H1/04 ,  H02H3/331

摘要： A ground fault interrupter including a zero-phase current transformer configured to detect unbalanced current flowing in electric lines. A switch is provided in the electric lines. A detection resistor is connected in parallel to the zero-phase current transformer and configured to convert current outputted from the zero-phase current transformer to voltage. A controller is configured to determine based on the voltage of the detection resistor whether an electric leak occurs and to open the switch when the controller determines that an electric leak occurs. At least one filter is provided between the detection resistor and the controller and is configured to remove high frequency elements in the voltage of the resistor. The at least one filter includes an input side resistor connected in series to the controller and configured to limit current input to the controller; and a capacitor connected in parallel to the controller.

摘要翻译： 一个接地故障断路器，包括一个零相电流互感器，用于检测在电线中流动的不平衡电流。 在电线中提供开关。 检测电阻并联连接到零相电流互感器，并配置为将从零相电流互感器输出的电流转换为电压。 控制器被配置为基于检测电阻的电压来确定是否发生电泄漏，并且当控制器确定发生电泄漏时打开开关。 在检测电阻器和控制器之间提供至少一个滤波器，并且被配置为去除电阻器的电压中的高频元件。 所述至少一个滤波器包括与控制器串联连接并被配置为将电流输入限制到控制器的输入侧电阻器; 以及与控制器并联连接的电容器。

公开(公告)号：US06670597B1

公开(公告)日：2003-12-30

申请号：US09580573

申请日：2000-05-30

申请人： Nobuhiro Kitamura ,  Yukihiro Murata ,  Yoshinori Akinari ,  Yoshihisa Ishigami

发明人： Nobuhiro Kitamura ,  Yukihiro Murata ,  Yoshinori Akinari ,  Yoshihisa Ishigami

IPC分类号： H05B4136

CPC分类号： H05B37/0218 ,  H03K17/941 ,  H05B41/2853 ,  Y02B20/40 ,  Y02B20/46

摘要： A solar battery SB for detecting the surrounding brightness is provided and a switching element SW is controlled based on output voltage of the solar battery SB. The switching element SW is made up of MOSFETs Q1 and Q2. To form an electronic automatic on/off switch, a triac Q is controlled by turning on/off the switching element SW.

摘要翻译： 提供了用于检测周围亮度的太阳能电池SB，并且基于太阳能电池SB的输出电压来控制开关元件SW。 开关元件SW由MOSFET Q1和Q2组成。 为了形成电子自动开/关开关，通过打开/关闭开关元件SW来控制三端双向可控硅开关Q。

公开(公告)号：US4513339A

公开(公告)日：1985-04-23

申请号：US527224

申请日：1983-08-29

申请人： Yoshihisa Ishigami ,  Yasumasa Hashimota ,  Tadaharu Kitado ,  Hiromi Nishimura ,  Tetsuo Mori

发明人： Yoshihisa Ishigami ,  Yasumasa Hashimota ,  Tadaharu Kitado ,  Hiromi Nishimura ,  Tetsuo Mori

IPC分类号： G01R15/18 ,  G01R19/00 ,  G01R19/15 ,  G01R19/165 ,  H02H3/08 ,  H02H3/28

CPC分类号： G01R19/16571 ,  G01R19/15

摘要： A current detecting device includes high frequency oscillation detecting circuits which, when a saturable reactor oscillates at a high frequency, detect the high frequency oscillation of the reactor and generate a high level output. Thus, when a large current flows through the reactor and the magnetization characteristic of the reactor is varied to generate a normal detection output, the reactor oscillation due to the large current is detected and an operating circuit for driving an external device is energized.

摘要翻译： 电流检测装置包括高频振荡检测电路，当可饱和电抗器以高频振荡时，检测电抗器的高频振荡并产生高电平输出。 因此，当大电流流过电抗器并且电抗器的磁化特性发生变化以产生正常检测输出时，检测到由于大电流引起的电抗器振荡，并且用于驱动外部装置的操作电路被通电。