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    • 1. 发明申请
    • POWER FACTOR CORRECTION CONTROL DEVICE AND ZERO-CURRENT DETECTION METHOD FOR POWER FACTOR CORRECTION CONTROL DEVICE
    • 功率因数校正控制装置和用于功率因数校正控制装置的零电流检测方法
    • US20130057230A1
    • 2013-03-07
    • US13598501
    • 2012-08-29
    • Joon Hyung LimSang Hoon HwangSang Hyun MinTah Joon Park
    • Joon Hyung LimSang Hoon HwangSang Hyun MinTah Joon Park
    • G05F1/70
    • H02M1/4225Y02B70/126
    • The present invention discloses an impedance matching apparatus. The impedance matching apparatus includes: a multilayer printed circuit board; a signal line including a plurality of signal layers with the same pitch and formed by sequentially arranging the plurality of signal layers on the multilayer printed circuit board; and a ground plane including a plurality of ground layers, wherein the plurality of ground layers are arranged to get closer to a bottom surface of the multilayer printed circuit board from a region corresponding to one side of the signal line to a region corresponding to the other side of the signal line. The impedance matching apparatus can implement a line width without any problem of a process yield by determining specific impedance by a distance between the signal layer and the ground layer formed in corresponding positions, thereby improving the process yield.
    • 本发明公开了一种阻抗匹配装置。 阻抗匹配装置包括:多层印刷电路板; 信号线包括具有相同间距的多个信号层,并且通过在多层印刷电路板上顺序布置多个信号层而形成; 以及包括多个接地层的接地平面,其中所述多个接地层被布置成从对应于所述信号线的一侧的区域越靠近所述多层印刷电路板的底表面到与其相对应的区域 侧信号线。 阻抗匹配装置可以通过将信号层与在相应位置形成的接地层之间的距离确定特定阻抗,从而实现线路宽度而没有任何工艺产量的问题,从而提高了工艺产量。
    • 7. 发明授权
    • Resistor-capacitor oscillation circuit capable of adjusting oscillation frequency and method of the same
    • 电阻电容振荡电路能够调节振荡频率及其方法
    • US07612624B2
    • 2009-11-03
    • US11928720
    • 2007-10-30
    • Joon Hyung LimTah Joon ParkKwang Mook LeeKoon Shik Cho
    • Joon Hyung LimTah Joon ParkKwang Mook LeeKoon Shik Cho
    • H03K3/02
    • H03K3/011H03L7/06
    • An RC oscillation circuit and method capable of adjusting an oscillation frequency includes: an RC oscillator including a variable resistor and a variable capacitor, the RC oscillator generating an RC oscillating signal having a frequency determined by a resistance of the variable resistor and a capacitance of the variable capacitor; a counter counting a clock number of a reference oscillating signal corresponding to one period of the RC oscillating signal to generate a first count value, the reference oscillating signal having a preset frequency; and a frequency controller controlling a frequency of the RC oscillating signal by determining the resistance of the variable resistor and the capacitance of the variable capacitor such that a difference between the first count value and a preset second count value is smaller than a preset first critical value.
    • 一种能够调节振荡频率的RC振荡电路和方法包括:RC振荡器,包括可变电阻器和可变电容器,RC振荡器产生具有由可变电阻器的电阻确定的频率的RC振荡信号和 可变电容器 计数对应于RC振荡信号的一个周期的参考振荡信号的时钟数,以产生第一计数值,所述参考振荡信号具有预置频率; 以及频率控制器,通过确定可变电阻器的电阻和可变电容器的电容来控制RC振荡信号的频率,使得第一计数值和预设的第二计数值之间的差小于预设的第一临界值 。
    • 8. 发明申请
    • SLEEP CURRENT ADJUSTING CIRCUIT OF SYSTEM ON CHIP
    • 休眠电流调节系统芯片电路
    • US20080278139A1
    • 2008-11-13
    • US12105966
    • 2008-04-18
    • Yong Il KwonMyeung Su KimJoon Hyung LimKoon Shik ChoTah Joon Park
    • Yong Il KwonMyeung Su KimJoon Hyung LimKoon Shik ChoTah Joon Park
    • H02M3/156
    • G11C5/14G11C5/148
    • There is provided a sleep current adjusting circuit of a system on chip including: a regulator supplying a turn-on voltage and a normal current when a mode selection signal is a normal mode signal, and a turn-off voltage when the mode selection signal is a sleep mode signal; a switching device turned on by the turn-on voltage of the regulator to supply the normal current from the regulator to a main circuit part and a sleep operation circuit part, respectively, and turned off by the turn-off voltage of the regulator to block the normal current from being supplied to the main circuit part and supply the sleep current to the sleep operation circuit part; and a current limit device limiting an operating current flowing in response to the operating voltage and supplying the sleep current to the sleep operation circuit part.
    • 提供了一种片上系统的睡眠电流调节电路,包括:当模式选择信号是正常模式信号时,提供接通电压和正常电流的调节器,以及当模式选择信号为 睡眠模式信号; 开关装置由调节器的导通电压导通,以分别将调节器的正常电流提供给主电路部分和睡眠操作电路部分,并通过调节器的截止电压将其截止以阻止 正常电流被提供给主电路部分并将睡眠电流提供给睡眠操作电路部分; 以及电流限制装置,其限制响应于所述工作电压流动的工作电流并将睡眠电流提供给所述睡眠操作电路部分。