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    • 11. 发明授权
    • Semiconductor switching devices
    • 半导体开关器件
    • US06639767B2
    • 2003-10-28
    • US09986326
    • 2001-11-08
    • Hiroshi ItoAkihiko IwataAkihiro Suzuki
    • Hiroshi ItoAkihiko IwataAkihiro Suzuki
    • H02H900
    • H03K17/08144H02M1/08H03K17/105
    • Self-quenching switching elements are connected in series in a semiconductor switching device. Snubber circuits including a diode, a capacitor, and a non-linear circuit are connected in parallel with the respective semiconductor switching elements. In the snubber circuit, the diode and the capacitor are connected in series, and the non-linear circuit is connected in parallel with the capacitor. The non-linear circuit includes an impedance element, a Zener diode, and a controlling semiconductor element and draws current through the controlling semiconductor element when applied voltage exceeds the Zener voltage of the Zener diode. The Zener voltage is larger than a divided voltage applied to the semiconductor element during a fault in a power system.
    • 自熄型开关元件串联连接在半导体开关器件中。 包括二极管,电容器和非线性电路的缓冲电路与各个半导体开关元件并联连接。 在缓冲电路中,二极管和电容器串联连接,非线性电路与电容并联。 当施加的电压超过齐纳二极管的齐纳电压时,非线性电路包括阻抗元件,齐纳二极管和控制半导体元件,并且通过控制半导体元件吸取电流。 在电力系统的故障期间,齐纳电压大于施加到半导体元件的分压。
    • 17. 发明授权
    • Power supply apparatus
    • 电源设备
    • US08902622B2
    • 2014-12-02
    • US13518350
    • 2011-09-07
    • Akihiro SuzukiHitoshi KidokoroToshiki KoshimaeHiroshi KurushimaMasato MatsubaraNaoki Nishikawa
    • Akihiro SuzukiHitoshi KidokoroToshiki KoshimaeHiroshi KurushimaMasato MatsubaraNaoki Nishikawa
    • H02M7/5387H02M7/00H02M7/217
    • H02M7/003
    • A power supply apparatus includes an inverter having output terminals; a first transformer that transforms AC output from the output terminals; a second transformer that is connected to the output terminals in parallel to the first transformer, arranged on an opposite side of the first transformer with respect to a straight line passing through a center of the output terminals and extending perpendicularly to a plane including the output terminals, and transforms AC power output from the output terminals; first conductive lines that connect the output terminals to both ends of the first transformer; and second conductive lines that connect the output terminals to both ends of the second transformer. An area of a first loop formed by the inverter, the first conductive lines, and the first transformer is equal to an area of a second loop formed by the inverter, the second conductive lines, and the second transformer.
    • 电源装置包括具有输出端子的逆变器; 第一变压器,用于转换输出端的交流输出; 第二变压器,其连接到与第一变压器并联的输出端子,相对于穿过输出端子的中心的直线布置在第一变压器的相对侧上,并且垂直于包括输出端子的平面延伸 并从输出端子转换输出的交流电力; 将输出端子连接到第一变压器的两端的第一导线; 以及将输出端子连接到第二变压器的两端的第二导线。 由逆变器,第一导线和第一变压器形成的第一回路的区域等于由逆变器,第二导线和第二变压器形成的第二回路的面积。
    • 18. 发明授权
    • Gas sensor
    • 气体传感器
    • US08815161B2
    • 2014-08-26
    • US12014829
    • 2008-01-16
    • Hidetoshi OishiTsuyoshi EguchiTakashi SasakiAkihiro SuzukiShunji Tsukabayashi
    • Hidetoshi OishiTsuyoshi EguchiTakashi SasakiAkihiro SuzukiShunji Tsukabayashi
    • G01N27/16G01N7/00G01N27/12G01N33/00H01M8/06H05K1/14
    • G01N27/125G01N33/005H01M8/0662H05K1/144
    • A gas-sensing element configured to measure a concentration of a specific component of a gas is mounted to a first circuit board which includes a driving circuit configured to drive the gas-sensing element. A moisture-proof material is disposed over at least one side of the first circuit board disposed in a tubular gas-sensing element case fixed to a sensor case. A gas-sensing chamber is defined by the first circuit board and an inner tubular surface of the gas-sensing element case, and opens at an open end of the gas-sensing element case to receive the gas to be monitored. A second circuit board which includes a control circuit configured to control the gas-sensing element via the driving circuit is fixed to a sensor case, and disposed in a position separate from the gas-sensing chamber such that the second circuit board is kept out of contact with the gas to be monitored.
    • 配置成测量气体的特定成分浓度的气体检测元件安装在第一电路板上,该第一电路板包括配置成驱动气体感测元件的驱动电路。 防潮材料设置在设置在固定到传感器壳体的管状气体感测元件壳体中的第一电路板的至少一侧上。 气体感测室由第一电路板和气体感测元件壳体的内部管状表面限定,并且在气体感测元件壳体的开口端处开口以接收待监测的气体。 包括经由驱动电路配置成控制气体感测元件的控制电路的第二电路板被固定到传感器壳体,并且设置在与气体感测室分离的位置,使得第二电路板保持在 与待监测的气体接触。
    • 20. 发明授权
    • Hydrogen sensor with dew condensation prevention
    • 氢气传感器防止结露
    • US08689609B2
    • 2014-04-08
    • US12937646
    • 2009-04-15
    • Hidetoshi OishiAkihiro SuzukiShunji TsukabayashiKazuhiro Okajima
    • Hidetoshi OishiAkihiro SuzukiShunji TsukabayashiKazuhiro Okajima
    • G01N25/18
    • G01N33/005H01M8/04007H01M8/04119
    • The gas sensor includes: a cylindrical member which includes a gas detection chamber therein and extends along an axial thereof; a base member which closes an opening of a first axial end of the cylindrical member; a status sensor which is disposed at a substantially central portion of the base member, and detects at least the temperature or the humidity in the gas detection chamber; a gas detection element disposed around the status sensor on the base member; a lid member which closes an opening of a second axial end of the cylindrical member; and a gas inlet port which penetrates the lid member at a location not coinciding with the status sensor and the gas detection element when seen from the axial direction, and enables the introduction of an inspection target gas from an outside into the gas detection chamber.
    • 气体传感器包括:圆柱形构件,其中包括气体检测室并沿其轴向延伸; 封闭所述圆筒形构件的第一轴向端部的开口的基座构件; 状态传感器,其设置在所述基部构件的大致中央部,并且至少检测所述气体检测室中的温度或湿度; 设置在所述基座部件上的所述状态传感器周围的气体检测元件; 封闭所述圆筒形构件的第二轴向端部的开口的盖构件; 以及气体导入口,其从轴向观察时,在与状态传感器和气体检测元件不一致的位置处贯通盖构件,并且能够将检查对象气体从外部引入到气体检测室。