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19 条记录 (耗时 0.013 秒)

    Tuning circuit
    1.
    发明授权
    Tuning circuit 失效
    调谐电路

    公开(公告)号：US07561861B2

    公开(公告)日：2009-07-14

    申请号：US11432561

    申请日：2006-05-12

    申请人： Seyeob Kim ,  Minsu Jeong

    发明人： Seyeob Kim ,  Minsu Jeong

    IPC分类号： H04B1/16

    CPC分类号： H03H11/1291

    摘要： A tuning circuit of a filter is disclosed to correct a cut-off frequency of the filter. The tuning circuit comprises a current generation unit which includes a first transistor and a resistor, and a capacitor compensation unit which includes a second transistor and a capacitor unit.

    摘要翻译： 公开了一种滤波器的调谐电路来校正滤波器的截止频率。 调谐电路包括包括第一晶体管和电阻器的电流产生单元，以及包括第二晶体管和电容器单元的电容器补偿单元。

    Automatic frequency control loop circuit
    2.
    发明授权
    Automatic frequency control loop circuit 失效
    自动频率控制回路电路

    公开(公告)号：US07555073B2

    公开(公告)日：2009-06-30

    申请号：US11457487

    申请日：2006-07-14

    申请人： Minsu Jeong

    发明人： Minsu Jeong

    IPC分类号： H04L27/06

    CPC分类号： H03J7/065 ,  H03L7/197

    摘要： Provided is a frequency control loop circuit changing division ratios of a frequency synthesizer to oscillate frequencies in a broadband with high precision. The circuit comprises a clock oscillator, a frequency synthesizer, and a demodulator.

    摘要翻译： 提供了一种频率控制环路电路，其改变频率合成器的分频比，以高精度振荡宽带中的频率。 该电路包括时钟振荡器，频率合成器和解调器。

    ADAPTIVE LINEAR AMPLIFIER
    3.
    发明申请
    ADAPTIVE LINEAR AMPLIFIER 审中-公开
    自适应线性放大器

    公开(公告)号：US20070210871A1

    公开(公告)日：2007-09-13

    申请号：US11681893

    申请日：2007-03-05

    申请人： Tae Wook KIM ,  Hee yong Yoo ,  Bonkee Kim ,  Minsu Jeong

    发明人： Tae Wook KIM ,  Hee yong Yoo ,  Bonkee Kim ,  Minsu Jeong

    IPC分类号： H03G3/10

    CPC分类号： H03F1/301 ,  H03F3/193 ,  H03F3/68

    摘要： The present invention relates to an amplifier and, more particularly, to an adaptive linear amplifier with low power consumption and a high linearity. The adaptive linear amplifier according to the present invention comprises amplification means and a bias controller. The amplification means comprises a main transistor and an auxiliary transistor unit. The main transistor and the auxiliary transistor unit are coupled to each other. The bias controller controls a bias voltage applied to the main transistor and the auxiliary transistor unit.

    摘要翻译： 本发明涉及一种放大器，更具体地说，涉及一种具有低功耗和高线性度的自适应线性放大器。 根据本发明的自适应线性放大器包括放大装置和偏置控制器。 放大装置包括主晶体管和辅助晶体管单元。 主晶体管和辅助晶体管单元彼此耦合。 偏置控制器控制施加到主晶体管和辅助晶体管单元的偏置电压。

    TRANSCONDUCTANCE VARYING CIRCUIT OF TRANSCONDUCTOR CIRCUIT, VARYING BANDWIDTH FILTER CIRCUIT USING THE SAME AND DIGITAL TUNING CIRCUIT OF TRANSCONDUCTOR-CAPACITOR FILTER
    4.
    发明申请
    TRANSCONDUCTANCE VARYING CIRCUIT OF TRANSCONDUCTOR CIRCUIT, VARYING BANDWIDTH FILTER CIRCUIT USING THE SAME AND DIGITAL TUNING CIRCUIT OF TRANSCONDUCTOR-CAPACITOR FILTER 失效
    超导体电路的交叉变化电路，使用相同的带状滤波器电路和传统电容滤波器的数字调谐电路

    公开(公告)号：US20050162194A1

    公开(公告)日：2005-07-28

    申请号：US11083975

    申请日：2005-03-21

    申请人： Seyeob Kim ,  Bo-Eun Kim ,  Minsu Jeong

    发明人： Seyeob Kim ,  Bo-Eun Kim ,  Minsu Jeong

    IPC分类号： H03F3/45 ,  H03H11/04 ,  H03H11/12 ,  H03K5/22 ,  H03K5/24

    CPC分类号： H03K5/2481 ,  H03F2203/45496 ,  H03F2203/45504 ,  H03H11/04 ,  H03H11/1291

    摘要： The present invention relates to a circuit for varying bandwidth of transconductance-capacitor filter by controlling transconductance of a transconductance circuit, and a digital tuning circuit of transconductor-capacitor filter. A transconductor of an embodiment of the present invention comprises a first and second amplifying devices; a resistor; a first and second bias current sources; and transconductance varying circuit. A tuning circuit of another embodiment of the invention relates to a digital tuning circuit comprising a transconductor that outputs current proportional to input voltage and a varying capacitance that is connected with output node of transconductor and between grounds and varies its capacitance depending upon the level of control signal. The digital tuning circuit further comprises a transconductor, a comparator, a counter, a varying capacitor, means for maintaining the output voltage of the transconductor as substantial zero for first period, and means for inputting input voltage to the transconductor for second period and means for inputting the output voltage of the transconductor to input node of the comparator.

    摘要翻译： 本发明涉及通过控制跨导电路的跨导和跨导电容滤波器的数字调谐电路来改变跨导 - 电容滤波器的带宽的电路。 本发明实施例的跨导体包括第一和第二放大器件; 一个电阻; 第一和第二偏置电流源; 和跨导变化电路。 本发明另一实施例的调谐电路涉及一种数字调谐电路，其包括输出与输入电压成比例的电流的跨导体和与跨导器的输出节点连接的变化的电容，并且在接地之间并根据控制电平改变其电容 信号。 数字调谐电路还包括跨导器，比较器，计数器，变化电容器，用于将跨导体的输出电压保持为第一周期的实质零度的装置，以及用于将输入电压输入到跨导体用于第二周期的装置， 将跨导体的输出电压输入到比较器的输入节点。

    Tuning circuit
    6.
    发明授权
    Tuning circuit 失效
    调谐电路

    公开(公告)号：US07463085B2

    公开(公告)日：2008-12-09

    申请号：US11471678

    申请日：2006-06-21

    申请人： Seyeob Kim ,  Minsu Jeong

    发明人： Seyeob Kim ,  Minsu Jeong

    IPC分类号： H03K5/00

    CPC分类号： H03H11/1291 ,  H03H7/0153 ,  H03H2210/021 ,  H03H2210/043

    摘要： The present invention relates to a filter and, more particularly, to a tuning circuit of a filter for correcting a cut-off frequency of the filter. The tuning circuit comprises a current generation unit having a first transistor and a variable resistor unit, and a capacitance correction unit having a second transistor, a capacitor unit, an up-down counter and a selection unit for selecting a control path of the up-down counter for varying the resistance or capacitance.

    摘要翻译： 本发明涉及一种滤波器，更具体地说，涉及用于校正滤波器的截止频率的滤波器的调谐电路。 调谐电路包括具有第一晶体管和可变电阻器单元的电流产生单元，以及具有第二晶体管，电容器单元，升降计数器和选择单元的电容校正单元，用于选择上变频单元的控制路径， 降低计数器，以改变电阻或电容。

    Circuit for generating reference current
    7.
    发明授权
    Circuit for generating reference current 失效
    用于产生参考电流的电路

    公开(公告)号：US07248099B2

    公开(公告)日：2007-07-24

    申请号：US11303921

    申请日：2005-12-19

    申请人： Rajath Kedilaya ,  Minsu Jeong

    发明人： Rajath Kedilaya ,  Minsu Jeong

    IPC分类号： G05F1/10 ,  G05F3/02

    CPC分类号： G05F3/267

    摘要： Disclosed herein is a circuit for generating reference current. The circuit for generating reference current comprises a current providing unit for generate a PTAT current, mirroring the PTAT current to generate an analogous PTAT current and generate an analogous BGR current, a current ratio control unit for generating an analogous BGR current in a first ratio, a PTAT current in a second ratio, and a current corresponding to the difference between the analogous PTAT current in the second ratio and the analogous BGR current in the first ratio, and a current increasing/decreasing unit for generating a BGR current in the first ratio.

    摘要翻译： 这里公开了一种用于产生参考电流的电路。 用于产生参考电流的电路包括用于产生PTAT电流的电流提供单元，镜像PTAT电流以产生类似的PTAT电流并产生类似的BGR电流;电流比率控制单元，用于以第一比率产生类似的BGR电流; 以第二比例的PTAT电流和与第二比率中的类似PTAT电流和第一比率中的类似BGR电流之间的差相对应的电流，以及用于产生第一比率的BGR电流的电流增减单元 。

    Tuning circuit
    8.
    发明申请
    Tuning circuit 失效

    公开(公告)号：US20060256486A1

    公开(公告)日：2006-11-16

    申请号：US11432561

    申请日：2006-05-12

    申请人： Seyeob Kim ,  Minsu Jeong

    发明人： Seyeob Kim ,  Minsu Jeong

    IPC分类号： H02H7/00

    CPC分类号： H03H11/1291

    摘要： A tuning circuit of a filter is disclosed to correct a cut-off frequency of the filter. The tuning circuit comprises a current generation unit which includes a first transistor and a resistor, and a capacitor compensation unit which includes a second transistor and a capacitor unit.

    Charge pump circuit for compensating mismatch of output currents
    9.
    发明授权
    Charge pump circuit for compensating mismatch of output currents 有权
    用于补偿输出电流失配的电荷泵电路

    公开(公告)号：US06989698B2

    公开(公告)日：2006-01-24

    申请号：US10647536

    申请日：2003-08-26

    申请人： Minsu Jeong

    发明人： Minsu Jeong

    IPC分类号： H03L7/06

    CPC分类号： H03L7/0895

    摘要： The present invention is to provide a charge pump circuit for improving switching speed and compensating mismatch between a source and a sink currents flowing to output terminal. A charge pump circuit according to the first embodiment of the present invention comprises a first and second switching elements, a discharging and charging elements, a biasing unit, a first and second compensating unit, a charge pumping unit, a current mirror unit, a control unit, and a biasing unit. The compensating circuit removes the deterioration owing to the parasitic capacitance, and the control circuit controls the charge that is flowed or emitted from the parasitic capacitance. A charge pump circuit according to the second embodiment of the present invention comprises a charge pumping unit, a current mirror unit, a control unit a biasing unit. The charge pump circuit decects the mismatch between the output currents via the control unit, and compensates the mismatch by the biasing unit.

    摘要翻译： 本发明提供一种电荷泵电路，用于提高开关速度并补偿源极与流向输出端子的吸收电流之间的失配。 根据本发明第一实施例的电荷泵电路包括第一和第二开关元件，放电和充电元件，偏置单元，第一和第二补偿单元，电荷泵送单元，电流镜单元，控制 单元和偏置单元。 补偿电路消除由于寄生电容引起的劣化，并且控制电路控制从寄生电容流出或发射的电荷。 根据本发明第二实施例的电荷泵电路包括电荷泵送单元，电流镜单元，控制单元a偏置单元。 电荷泵电路通过控制单元欺骗输出电流之间的失配，并补偿偏置单元的失配。