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。

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。

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。

公开(公告)号：US20060290419A1

公开(公告)日：2006-12-28

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。

公开(公告)号：US06958652B2

公开(公告)日：2005-10-25

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。

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.

公开(公告)号：US06891436B2

公开(公告)日：2005-05-10

申请号：US10673555

申请日：2003-09-30

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.

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。

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。

公开(公告)号：US20130236798A1

公开(公告)日：2013-09-12

申请号：US13877398

申请日：2010-10-05

申请人： Haksoo Han ,  Minsu Jeong ,  Seung-Hyuk Choi

发明人： Haksoo Han ,  Minsu Jeong ,  Seung-Hyuk Choi

IPC分类号： H01M8/10

CPC分类号： H01M8/1018 ,  C08J5/2206 ,  C08J5/2256 ,  C08J2379/06 ,  H01B1/127 ,  H01B1/128 ,  H01M8/103 ,  H01M8/1048 ,  H01M8/1058 ,  H01M2008/1095 ,  Y02E60/521 ,  Y02P20/149 ,  Y02P70/56

摘要： Disclosed is a composite electrolyte membrane for a fuel cell. The composite electrolyte membrane includes a polybenzimidazole-based polymer and a metal-grafted porous structure. The composite electrolyte membrane is doped with phosphoric acid. The metal-containing porous structure is present in an amount of 0.1 to 30% by weight, based on the weight of the polymer. The presence of the metal-containing porous structure allows the fuel cell electrolyte membrane to have excellent thermal properties and high proton conductivity.

摘要翻译： 公开了一种用于燃料电池的复合电解质膜。 复合电解质膜包括聚苯并咪唑类聚合物和金属接枝多孔结构体。 复合电解质膜掺有磷酸。 基于聚合物的重量，含金属的多孔结构以0.1-30重量％的量存在。 含金属多孔结构的存在允许燃料电池电解质膜具有优异的热性能和高质子传导性。