公开(公告)号：US08378749B1

公开(公告)日：2013-02-19

申请号：US13194270

申请日：2011-07-29

申请人： Woonyun Kim ,  Jeonghu Han ,  Ki Seok Yang ,  Jae Joon Chang ,  Chang-Ho Lee

发明人： Woonyun Kim ,  Jeonghu Han ,  Ki Seok Yang ,  Jae Joon Chang ,  Chang-Ho Lee

IPC分类号： H03F3/45

CPC分类号： H03F3/45188 ,  H03F1/0266 ,  H03F3/45183 ,  H03F2200/18 ,  H03F2203/45292

摘要： Systems and methods may include an amplifier having at least a first input port, where the amplifier includes a first capacitance associated with the first input port; a first bias circuit, where the first bias circuit comprises a series connection of a first charging circuit and a first discharging circuit, wherein a first node between the first charging circuit and the first discharging circuit is connected to the first input port, wherein responsive to an RF input signal having at least a first predetermined level being received at the first input port, the first charging circuit charges the first capacitance associated with the first input port during a first portion of a cycle of the RF input signal, and discharges the first capacitance associated with the first input port during a second portion of the cycle, thereby controlling a DC bias voltage level available at the first input port.

摘要翻译： 系统和方法可以包括具有至少第一输入端口的放大器，其中放大器包括与第一输入端口相关联的第一电容; 第一偏置电路，其中第一偏置电路包括第一充电电路和第一放电电路的串联连接，其中第一充电电路和第一放电电路之间的第一节点连接到第一输入端口，其中响应于 在第一输入端口处接收至少具有第一预定电平的RF输入信号，第一充电电路在RF输入信号的周期的第一部分期间对与第一输入端口相关联的第一电容充电，并且将第一 在周期的第二部分期间与第一输入端口相关联的电容，从而控制在第一输入端口处可用的DC偏置电压电平。

公开(公告)号：US20130027135A1

公开(公告)日：2013-01-31

申请号：US13194270

申请日：2011-07-29

申请人： Woonyun Kim ,  Jeonghu Han ,  Ki Seok Yang ,  Jae Joon Chang ,  Chang-Ho Lee

发明人： Woonyun Kim ,  Jeonghu Han ,  Ki Seok Yang ,  Jae Joon Chang ,  Chang-Ho Lee

IPC分类号： H03F3/04 ,  H03F3/45

CPC分类号： H03F3/45188 ,  H03F1/0266 ,  H03F3/45183 ,  H03F2200/18 ,  H03F2203/45292

摘要： Systems and methods may include an amplifier having at least a first input port, where the amplifier includes a first capacitance associated with the first input port; a first bias circuit, where the first bias circuit comprises a series connection of a first charging circuit and a first discharging circuit, wherein a first node between the first charging circuit and the first discharging circuit is connected to the first input port, wherein responsive to an RF input signal having at least a first predetermined level being received at the first input port, the first charging circuit charges the first capacitance associated with the first input port during a first portion of a cycle of the RF input signal, and discharges the first capacitance associated with the first input port during a second portion of the cycle, thereby controlling a DC bias voltage level available at the first input port.

摘要翻译： 系统和方法可以包括具有至少第一输入端口的放大器，其中放大器包括与第一输入端口相关联的第一电容; 第一偏置电路，其中第一偏置电路包括第一充电电路和第一放电电路的串联连接，其中第一充电电路和第一放电电路之间的第一节点连接到第一输入端口，其中响应于 在第一输入端口处接收至少具有第一预定电平的RF输入信号，第一充电电路在RF输入信号的周期的第一部分期间对与第一输入端口相关联的第一电容充电，并且将第一 在周期的第二部分期间与第一输入端口相关联的电容，从而控制在第一输入端口处可用的DC偏置电压电平。

公开(公告)号：US20120194150A1

公开(公告)日：2012-08-02

申请号：US13018788

申请日：2011-02-01

申请人： Jaejoon Chang ,  Ki Seok Yang ,  Jeonghu Han ,  Woonyun Kim ,  Chang-Ho Lee

发明人： Jaejoon Chang ,  Ki Seok Yang ,  Jeonghu Han ,  Woonyun Kim ,  Chang-Ho Lee

IPC分类号： G05F1/575

CPC分类号： G06F1/26 ,  H04W52/0261

摘要： Systems and methods may include a low-dropout (LDO) voltage regulator for portable communication devices. The systems and methods may include a comparator having first and second inputs and generating a control voltage, the first input receiving a battery voltage from a battery source, the second input receiving a fixed voltage independent from the battery voltage, and a power management circuit that receives the control voltage and provides a regulated voltage based upon the control voltage, wherein when the received battery voltage is above the fixed voltage, the control voltage is provided at a high constant voltage, thereby resulting in the regulated voltage being at a first voltage, and wherein when the battery voltage is below the fixed voltage, the control voltage is provided at a low constant voltage, thereby resulting in the regulated voltage being at a second voltage less than the first voltage.

摘要翻译： 系统和方法可以包括用于便携式通信设备的低压差（LDO）电压调节器。 该系统和方法可以包括具有第一和第二输入并产生控制电压的比较器，第一输入从电池源接收电池电压，第二输入接收独立于电池电压的固定电压，以及功率管理电路， 接收控制电压并根据控制电压提供调节电压，其中当接收的电池电压高于固定电压时，以高的恒定电压提供控制电压，由此导致调节电压处于第一电压， 并且其中当所述电池电压低于所述固定电压时，所述控制电压以低的恒定电压被提供，从而导致所述调节电压处于小于所述第一电压的第二电压。

公开(公告)号：US08044759B2

公开(公告)日：2011-10-25

申请号：US12902940

申请日：2010-10-12

申请人： Ki Seok Yang ,  Jeonghu Han ,  Jaejoon Chang ,  Woonyun Kim ,  Chang-Ho Lee

发明人： Ki Seok Yang ,  Jeonghu Han ,  Jaejoon Chang ,  Woonyun Kim ,  Chang-Ho Lee

IPC分类号： H01F5/00

CPC分类号： H01F27/2804 ,  H01F19/04 ,  H01L2224/48091 ,  H01L2224/49175 ,  H01L2924/00014

摘要： Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction.

摘要翻译： 提供了用于重叠紧凑型多变压器的系统和方法。 系统和方法可以包括第一变压器部分，其包括第一初级绕组部分和第一次级绕组，其中第一初级绕组部分感应耦合到第一次级绕组，其中第一变压器部分与第一转子电流相关联 第一初级绕组段中的流动方向; 以及第二变压器部分，其包括第二初级绕组部分和第二次级绕组，其中所述第二初级绕组部分感应耦合到所述第二次级绕组，其中所述第二变压器部分与所述第二转子部分中的第二转动电流流动方向相关联， 初级绕组部分，其中第一初级绕组部分的第一部分与第二初级绕组部分的第二部分相邻，其中相邻的第一和第二部分包括基本相同的第一线性电流流动方向。

公开(公告)号：US20110043316A1

公开(公告)日：2011-02-24

申请号：US12902940

申请日：2010-10-12

申请人： Ki Seok Yang ,  Jeonghu Han ,  Jaejoon Chang ,  Woonyun Kim ,  Chang-Ho Lee

发明人： Ki Seok Yang ,  Jeonghu Han ,  Jaejoon Chang ,  Woonyun Kim ,  Chang-Ho Lee

IPC分类号： H01F27/29 ,  H01F27/28

CPC分类号： H01F27/2804 ,  H01F19/04 ,  H01L2224/48091 ,  H01L2224/49175 ,  H01L2924/00014

摘要： Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction.

摘要翻译： 提供了用于重叠紧凑型多变压器的系统和方法。 系统和方法可以包括第一变压器部分，其包括第一初级绕组部分和第一次级绕组，其中第一初级绕组部分感应耦合到第一次级绕组，其中第一变压器部分与第一转子电流相关联 第一初级绕组段中的流动方向; 以及第二变压器部分，其包括第二初级绕组部分和第二次级绕组，其中所述第二初级绕组部分感应耦合到所述第二次级绕组，其中所述第二变压器部分与所述第二转子部分中的第二转动电流流动方向相关联， 初级绕组部分，其中第一初级绕组部分的第一部分与第二初级绕组部分的第二部分相邻，其中相邻的第一和第二部分包括基本相同的第一线性电流流动方向。

公开(公告)号：US07940152B1

公开(公告)日：2011-05-10

申请号：US12785020

申请日：2010-05-21

申请人： Woonyun Kim ,  Jihwan Kim ,  Chang-Ho Lee ,  Joy Laskar

发明人： Woonyun Kim ,  Jihwan Kim ,  Chang-Ho Lee ,  Joy Laskar

IPC分类号： H01F27/28

CPC分类号： H01F19/04 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/09 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2200/543

摘要： A multi-primary and distributed transformer is provided for one or more sets of parallel-connected or series-connected power amplifiers. The transformer may include a plurality of primary windings, including a first primary winding, a second primary winding, a third primary winding, and a fourth primary winding, where each of the plurality of primary windings is not directly connected to any other of the plurality of primary windings, where each primary winding includes a respective positive port and a negative port for receiving respective differential signals, where each primary winding include a respective first number of turns; and a single secondary winding having a plurality of segments, including a first segment and a second segment, where each segment includes a second number of turns, the second number of turns greater than or equal to the respective first number of turns, where the single secondary winding includes at least one output port.

摘要翻译： 为一组或多组并联或串联连接的功率放大器提供了一个多主分布式变压器。 变压器可以包括多个初级绕组，包括第一初级绕组，第二初级绕组，第三初级绕组和第四初级绕组，其中多个初级绕组中的每一个不直接连接到多个初级绕组中的任何另一个 的初级绕组，其中每个初级绕组包括相应的正端口和用于接收相应的差分信号的负端口，其中每个初级绕组包括相应的第一圈数; 以及具有多个段的单个次级绕组，其包括第一段和第二段，其中每个段包括第二匝数，第二匝数大于或等于相应的第一匝数，其中单个 次级绕组包括至少一个输出端口。

公开(公告)号：US07755440B2

公开(公告)日：2010-07-13

申请号：US11970643

申请日：2008-01-08

申请人： Woonyun Kim

发明人： Woonyun Kim

IPC分类号： H03K3/282

CPC分类号： H03B5/1228 ,  H03B5/1212 ,  H03B5/1218 ,  H03B5/1225 ,  H03B5/1243

摘要： A voltage controlled oscillator (VCO) includes a VCO unit having multiple VCO unit output terminals and an amplifier having multiple amplifier output terminals respectively connected to the VCO unit output terminals. The VCO unit generates first output signals having an oscillation frequency corresponding to a supply voltage. The amplifier amplifies a value obtained by performing n-th differentiation on a transconductance component of each first output signal (n being a natural number). Second output signals, corresponding to the first output signals, are output through the amplifier output terminals. Each second output signal includes the amplified value of the corresponding first output signal.

摘要翻译： 压控振荡器（VCO）包括具有多个VCO单元输出端的VCO单元和具有分别连接到VCO单元输出端的多个放大器输出端的放大器。 VCO单元产生具有与电源电压对应的振荡频率的第一输出信号。 放大器放大通过对每个第一输出信号（n为自然数）的跨导分量执行n次微分而获得的值。 对应于第一输出信号的第二输出信号通过放大器输出端输出。 每个第二输出信号包括对应的第一输出信号的放大值。

公开(公告)号：US20070190959A1

公开(公告)日：2007-08-16

申请号：US11705237

申请日：2007-02-12

申请人： Woonyun Kim ,  Hyun-Seok Kim

发明人： Woonyun Kim ,  Hyun-Seok Kim

IPC分类号： H04B1/26 ,  H04B15/00

CPC分类号： H03D7/1425 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0043

摘要： A frequency conversion unit includes a local oscillator, a phase compensator, and a mixer. The local oscillator generates differential original oscillating signals. The phase compensator generates differential compensated oscillating signals mixed with differential received signals by the mixer to generate differential baseband signals. The respective duty cycles of the compensated oscillating signals are adjusted for minimizing intermodulation distortion in the baseband signals.

摘要翻译： 变频单元包括本地振荡器，相位补偿器和混频器。 本地振荡器产生差分原始振荡信号。 相位补偿器通过混频器产生与差分接收信号混合的差分补偿振荡信号，以产生差分基带信号。 调整补偿振荡信号的相应占空比以最小化基带信号中的互调失真。

公开(公告)号：US20060145706A1

公开(公告)日：2006-07-06

申请号：US11325512

申请日：2006-01-05

申请人： Woonyun Kim

发明人： Woonyun Kim

IPC分类号： G01R35/00

CPC分类号： H03D7/14

摘要： A calibration circuit and method thereof. In the example method, a common-mode voltage may be detected at an output port of a mixer. At least one common-mode feedback voltage may be generated (e.g., at one or more common-mode feedback circuits) based on the detected common-mode voltage. A loop gain may be adjusted in response to a gate control signal (e.g., received at a controller, such as a second order Intecept Point (IP2) controller). An impedance may be adjusted at the output port of the mixer and a current applied to the output port of the mixer may be adjusted based on the at least one common-mode feedback voltage. The example method may be performed by a calibration circuit (e.g., an IP2 calibration circuit).

摘要翻译： 一种校准电路及其方法。 在示例性方法中，可以在混频器的输出端口处检测共模电压。 可以基于检测到的共模电压来生成至少一个共模反馈电压（例如，在一个或多个共模反馈电路）。 可以响应于门控制信号（例如，在诸如第二级Intecept Point（IP2）控制器的控制器处接收）来调整环路增益。 可以在混频器的输出端口处调整阻抗，并且可以基于至少一个共模反馈电压来调整施加到混频器的输出端口的电流。 示例性方法可以由校准电路（例如，IP2校准电路）执行。

公开(公告)号：US20060246864A1

公开(公告)日：2006-11-02

申请号：US11356257

申请日：2006-02-17

申请人： Woonyun Kim

发明人： Woonyun Kim

IPC分类号： H04B1/10 ,  H04B1/26

CPC分类号： H04B1/123

摘要： A method, of reducing distortion due to a third order intermodulation (IM3) product, may include: receiving an original signal; and performing, before frequency translation is done to the original signal or a version thereof, steps that include the following, firstly manipulating the original signal to form a first manipulated signal that includes a first IM3 product, secondly manipulating the original signal to form a second manipulated signal that includes a second IM3 product, and combining (A) one of the first manipulated signal or a version thereof having substantially the same frequency with (B) one of the second manipulated signal or a version thereof having substantially the same frequency such that the second IM3 product is used to substantially counteract the first IM3 product.

摘要翻译： 该方法涉及操纵接收到的射频（RF）信号，例如。 无线通信信号以形成两个三阶互调（IM3）产品，其中次要IM3产品相对于主IM3产品基本上完全不同相。 组合IM3产品进行频率转换。 包括以下独立权利要求：（1）信号频率转换方法; （2）失真减少装置; 和（3）频率转换器。