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    • 7. 发明授权
    • Automatic discharging apparatus for closing spring in air circuit breaker and air circuit breaker having the same
    • 用于关闭空气断路器中的弹簧和具有该弹簧的空气断路器的自动排放装置
    • US07977595B2
    • 2011-07-12
    • US12038858
    • 2008-02-28
    • Sang-Chul LeeKi-Hwan KimHong-Ik YangKil-Young Ahn
    • Sang-Chul LeeKi-Hwan KimHong-Ik YangKil-Young Ahn
    • H01H5/00
    • H01H3/3015H01H33/40H01H2003/3089H02B11/133
    • Provided are an air circuit breaker capable of allowing a closing spring to be automatically discharged at a pulled-out position in a pull-out type air circuit breaker and an automatic discharging apparatus for the closing spring in the air circuit breaker, the automatic discharging apparatus for the closing spring comprising a cam shaft rotation preventing unit installed on a cam shaft allowing the closing spring to be charged or discharged and configured to restrict the rotation of the cam shaft by an elastic restoring force of the closing spring, and a unit for releasing the cam shaft rotation preventing unit connected to the cam shaft rotation preventing unit and configured to allow the cam shaft to be rotated by the elastic restoring force of the closing spring according to positions where a main body of the air circuit breaker is pulled out of a cradle.
    • 提供一种空气断路器,其能够使闭合弹簧在拉出型空气断路器中的拉出位置自动排出,以及用于空气断路器中的闭合弹簧的自动排出装置,自动排出装置 所述闭合弹簧包括安装在凸轮轴上的凸轮轴旋转防止单元,所述凸轮轴允许所述闭合弹簧被充放电并且被构造成通过所述闭合弹簧的弹性恢复力来限制所述凸轮轴的旋转;以及用于释放的单元 所述凸轮轴旋转防止单元连接到所述凸轮轴旋转防止单元,并且被构造成根据所述关闭弹簧的弹性恢复力使所述凸轮轴旋转,其中所述位置将所述空气断路器的主体从 摇篮。
    • 10. 发明授权
    • Liquid crystal display and method of operating the same
    • 液晶显示器及其操作方法
    • US08339347B2
    • 2012-12-25
    • US12409681
    • 2009-03-24
    • Hyeon-Seok BaeSang-Chul LeeKwang-Youl Lee
    • Hyeon-Seok BaeSang-Chul LeeKwang-Youl Lee
    • G09G3/36
    • G09G3/3696G09G2330/02
    • A liquid crystal display includes; a liquid crystal panel, and a DC-DC converter which receives an input voltage to generate an analog drive voltage and a gate-on voltage used to operate the liquid crystal panel, wherein the DC-DC converter includes a pulse width modulation circuit which modulates a pulse width of the analog drive voltage and the gate-on voltage, a boost converter which boosts the input voltage to output the analog drive voltage, and a charge pump which boosts one of the input voltage and the analog drive voltage to output the gate-on voltage, wherein when a high voltage stress test is performed, the DC-DC converter outputs the analog drive voltage boosted to a voltage level higher than a voltage level of the analog drive voltage during a normal operation, and outputs the gate-on voltage having a voltage level substantially equal to a voltage level of the gate-on voltage during the normal operation.
    • 液晶显示器包括: 液晶面板和接收输入电压以产生用于操作液晶面板的模拟驱动电压和栅极导通电压的DC-DC转换器,其中DC-DC转换器包括调制脉冲宽度调制电路 模拟驱动电压和栅极导通电压的脉冲宽度,升压输入电压以输出模拟驱动电压的升压转换器,以及升压输入电压和模拟驱动电压之一以输出门极的电荷泵 - 其中当执行高压应力测试时,所述DC-DC转换器在正常操作期间将升压的模拟驱动电压输出到高于模拟驱动电压的电压电平的电压电平,并且输出门极导通 电压具有在正常操作期间基本上等于栅极导通电压的电压电平的电压电平。