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    • 92. 发明申请
    • Frame for cathode ray tube
    • 阴极射线管框架
    • US20060082281A1
    • 2006-04-20
    • US11249434
    • 2005-10-14
    • Yong Hwang
    • Yong Hwang
    • H01J29/80
    • H01J29/073H01J2229/0722
    • A frame for a cathode ray tube including a substantially rectangular frame body having longer and shorter sides, and one or more beads formed on each of the longer frame sides, and one or more beads formed on each of the shorter frame sides, wherein at least one of the beads formed on each of the longer frame sides has a shape different from the shape of the beads formed on each of the shorter frame sides, to increase the rigidity of the longer frame side. The number of the beads formed on each of the longer frame sides may be different from the number of the beads formed on each of the shorter frame sides, to increase the rigidity of the longer frame side.
    • 一种用于阴极射线管的框架,包括具有较长和短边的大致矩形的框架体,以及形成在每个较长框架侧上的一个或多个凸珠,以及形成在每个较短框架侧上的一个或多个凸珠,其中至少 形成在每个较长框架侧上的一个珠具有与形成在每个较短框架侧上的珠的形状不同的形状,以增加较长框架侧的刚度。 形成在每个较长框架侧上的珠的数量可以不同于在每个较短框架侧上形成的珠的数量,以增加较长框架侧的刚度。
    • 94. 发明授权
    • Power supply apparatus
    • 电源设备
    • US06977830B2
    • 2005-12-20
    • US10847914
    • 2004-05-19
    • Jin-hyung LeeSu-yong Hwang
    • Jin-hyung LeeSu-yong Hwang
    • H02M3/155H02M3/156H02M7/04
    • H02M3/156H02M2001/0022H02M2001/0096
    • Provided is a power supply apparatus which includes a comparator, an output voltage adjusting unit, a controller, and an output unit. The comparator compares a sensed AC input voltage to a reference voltage and outputs one of first through third comparison result signals. The output voltage adjusting unit outputs one of first through third output voltage level adjustment signals for changing the feedback output voltage level according to one of the comparison result signals. The controller outputs a switching signal. The output unit outputs a predetermined voltage by regulating and smoothing an input voltage induced to a secondary coil of a transformer by the switching signal. By adjusting the output voltage of a boost converter according to the input voltage, efficiency is increased because there is less power loss of the switching component, and the hold-up time may be adjusted even in a case of low AC input voltage.
    • 提供一种电源装置,其包括比较器,输出电压调整单元,控制器和输出单元。 比较器将检测到的AC输入电压与参考电压进行比较,并输出第一至第三比较结果信号之一。 输出电压调整单元根据比较结果信号之一输出用于改变反馈输出电压电平的第一至第三输出电压电平调整信号中的一个。 控制器输出切换信号。 输出单元通过切换信号来调节和平滑感应到变压器的次级线圈的输入电压来输出预定电压。 通过根据输入电压调节升压转换器的输出电压,由于开关部件的功率损耗较小,因此即使在低交流输入电压的情况下也可以调节保持时间,因此提高效率。