公开(公告)号：US06326849B1

公开(公告)日：2001-12-04

申请号：US09672387

申请日：2000-09-28

申请人： Nanlei Larry Wang ,  Shuo-Yuan Hsiao ,  Wei-Shu Zhou ,  Shihui Xu

发明人： Nanlei Larry Wang ,  Shuo-Yuan Hsiao ,  Wei-Shu Zhou ,  Shihui Xu

IPC分类号： H03F304

CPC分类号： H03F1/565 ,  H03F1/302 ,  H03F3/72 ,  H03F2203/7206

摘要： In an RF amplifier circuit having a plurality of transistor stages with each transistor having an input terminal for receiving an RF signal, a bias circuit is provided for applying a DC bias to the input terminal of a transistor. An isolation circuit connects a DC power supply to a bias circuit whereby DC voltage from the power terminal is applied to the bias circuit and RF signal from the transistor input terminal is attenuated. The isolation circuit includes a reactive serial path which allows the flow of DC current and presents an impedance to RF current flow and a reactive shunt path to ground which can comprise a capacitor or a serial inductor/capacitor circuit. The reactive serial path can comprise an inductor or an inductor/capacitor parallel circuit.

摘要翻译： 在具有多个晶体管级的RF放大器电路中，每个晶体管具有用于接收RF信号的输入端，提供偏置电路用于向晶体管的输入端施加DC偏置。 隔离电路将DC电源连接到偏置电路，由此来自电源端子的DC电压被施加到偏置电路，并且来自晶体管输入端子的RF信号被衰减。 隔离电路包括一个反应串行路径，其允许直流电流的流动并且向RF电流提供阻抗，并且向地面提供可包括电容器或串联电感器/电容器电路的无功分流路径。 反应串行路径可以包括电感器或电感器/电容器并联电路。

公开(公告)号：US06521972B1

公开(公告)日：2003-02-18

申请号：US09675098

申请日：2000-09-28

申请人： Wei-Shu Zhou ,  Shuo-Yuan Hsiao ,  Nanlei Larry Wang

发明人： Wei-Shu Zhou ,  Shuo-Yuan Hsiao ,  Nanlei Larry Wang

IPC分类号： H01L27082

CPC分类号： H01L23/66 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01L2924/00

摘要： An RF microwave power transistor has an input/output feed structure which functions as a low impedance microstrip line by providing a ground plane in close proximity to the feed structure on one surface of a semiconductor body. A second ground plane can be provided on an opposing surface of the semiconductor body with vias interconnecting the first and second ground planes. In addition to reducing feed impedance, a larger total transistor size can be provided before “odd mode oscillation” occurs.

摘要翻译： RF微波功率晶体管具有输入/输出馈送结构，其通过在半导体本体的一个表面上靠近馈电结构提供接地平面来起到低阻抗微带线的作用。 可以在半导体主体的相对表面上设置第二接地平面，该通孔具有互连第一和第二接地平面的通孔。 除了降低馈电阻抗之外，在“奇模振荡”发生之前，可以提供更大的总体晶体管尺寸。

公开(公告)号：US06556082B1

公开(公告)日：2003-04-29

申请号：US09976445

申请日：2001-10-12

申请人： Nanlei Larry Wang ,  Sarah Xu ,  Shuo-Yuan Hsiao

发明人： Nanlei Larry Wang ,  Sarah Xu ,  Shuo-Yuan Hsiao

IPC分类号： H03F304

CPC分类号： H03F1/302

摘要： A temperature compensating circuit for use with a current mirror circuit for maintaining a reference current value during temperature variations includes a compensating transistor connected in parallel with a reference current transistor and bias circuitry for biasing the compensating transistor whereby current flows from the reference node to ground through the compensating transistor to remove excess current from the reference transistor when temperature increases. A diode can be included in the bias circuitry for limiting bias current flow when the reference voltage drops below the voltage drop of the diode. An on/off switch circuit can be provided in parallel with the reference current transistor to further reduce reference current in specific applications.

摘要翻译： 在温度变化期间用于维持参考电流值的电流镜电路的温度补偿电路包括与参考电流晶体管并联连接的补偿晶体管和用于偏置补偿晶体管的偏置电路，从而电流从参考节点流过地面通过 补偿晶体管，以在温度升高时去除参考晶体管的过剩电流。 当参考电压低于二极管的电压降时，偏置电路中可包括二极管以限制偏置电流流动。 可以与参考电流晶体管并联提供开/关开关电路，以在特定应用中进一步减少参考电流。

公开(公告)号：US06424223B1

公开(公告)日：2002-07-23

申请号：US09765996

申请日：2001-01-19

申请人： Nanlei Larry Wang ,  Shuo-Yuan Hsiao ,  Xiao-Peng Sun

发明人： Nanlei Larry Wang ,  Shuo-Yuan Hsiao ,  Xiao-Peng Sun

IPC分类号： H03F360

CPC分类号： H01L24/49 ,  H01L23/66 ,  H01L24/48 ,  H01L2223/6611 ,  H01L2223/6644 ,  H01L2224/05554 ,  H01L2224/45015 ,  H01L2224/48091 ,  H01L2224/48195 ,  H01L2224/4911 ,  H01L2224/49113 ,  H01L2224/49175 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/14 ,  H01L2924/1423 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19104 ,  H01L2924/19105 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H03F1/56 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2924/20752 ,  H01L2224/05599

摘要： A hybrid microwave and millimeter wave integrated circuit (MMIC) RF power amplifier includes an integrated circuit in which an amplifier circuit is fabricated and an output impedance matching network comprising metal-insulator-metal (MIM) capacitors mounted on the integrated circuit chip with bonding wire inductors connecting the amplifier circuit with the capacitor elements. The resulting structure has a smaller form factor as compared to conventional power amplifiers employing planar transmission lines and surface mount technology capacitors.

摘要翻译： 一种混合微波和毫米波集成电路（MMIC）RF功率放大器包括其中制造放大器电路的集成电路和包括安装在具有接合线的集成电路芯片上的金属 - 绝缘体 - 金属（MIM）电容器的输出阻抗匹配网络 将放大器电路与电容器元件连接的电感器。 与使用平面传输线和表面贴装技术电容器的常规功率放大器相比，所得到的结构具有较小的外形尺寸。

公开(公告)号：US06522201B1

公开(公告)日：2003-02-18

申请号：US09672384

申请日：2000-09-28

申请人： Shuo-Yuan Hsiao ,  Wei-Shu Zhou ,  Nanlei Y Larry Wang

发明人： Shuo-Yuan Hsiao ,  Wei-Shu Zhou ,  Nanlei Y Larry Wang

IPC分类号： H03G310

CPC分类号： H03G1/0088

摘要： Efficiency of an RF/microwave power amplifier is increased at a back-off power level by increasing the load resistance of the amplifier at the reduced output power level as compared to load impedance at a higher power level including full operating power. The different load impedances can be realized with two amplification units in parallel each having different load impedances. Alternatively, a single amplification path can be provided with an output impedance matching network which is selectively bypassed for increased impedance load during back-off power operation. In another embodiment, the output impedance matching network can include a shunt inductance which is selectively switched into the network to increase impedance for back-off power operation.

摘要翻译： 与包括全部工作功率的较高功率电平下的负载阻抗相比，通过增加放大器在降低的输出功率电平下的负载电阻，RF /微波功率放大器的效率在退避功率电平上增加。 可以通过具有不同负载阻抗的两个并联的放大单元实现不同的负载阻抗。 或者，单个放大路径可以设置有输出阻抗匹配网络，其被选择性地旁路以在退避功率操作期间增加阻抗负载。 在另一个实施例中，输出阻抗匹配网络可以包括分流电感，其被选择性地切换到网络中以增加用于退避功率操作的阻抗。

公开(公告)号：US08120531B2

公开(公告)日：2012-02-21

申请号：US12719294

申请日：2010-03-08

申请人： Chao-Tung Yang ,  Fu-Cheng Wang ,  Shoufang Chen ,  Shuo-Yuan Hsiao

发明人： Chao-Tung Yang ,  Fu-Cheng Wang ,  Shoufang Chen ,  Shuo-Yuan Hsiao

IPC分类号： G01S19/36

CPC分类号： G01S19/36 ,  G01S19/33

摘要： A signal processing apparatus for a multi-mode satellite positioning system includes a band-pass filter, a local oscillator circuit, a first mixing circuit, a second mixing circuit, an analog-to-digital converter and a baseband circuit. By properly allocating a local frequency, radio frequency (RF) signals of a Global Positioning System (GPS), a Galileo positioning system and a Global Navigation System (GLONASS) are processed via a single signal path to save hardware cost.

摘要翻译： 一种用于多模式卫星定位系统的信号处理装置，包括带通滤波器，本地振荡器电路，第一混频电路，第二混频电路，模数转换器和基带电路。 通过适当地分配本地频率，通过单个信号路径处理全球定位系统（GPS），伽利略定位系统和全球导航系统（GLONASS）的射频（RF）信号以节省硬件成本。

公开(公告)号：US07760844B2

公开(公告)日：2010-07-20

申请号：US12363792

申请日：2009-02-02

申请人： Jian-Yu Ding ,  Shen-Ching Sun ,  Yao-Chi Wang ,  Chao-Tung Yang ,  Fucheng Wang ,  Shuo-Yuan Hsiao

发明人： Jian-Yu Ding ,  Shen-Ching Sun ,  Yao-Chi Wang ,  Chao-Tung Yang ,  Fucheng Wang ,  Shuo-Yuan Hsiao

IPC分类号： H03K21/00

CPC分类号： H03K23/584 ,  H03K23/665 ,  H03K23/667 ,  H03L7/193 ,  H03L7/1976

摘要： A multi-modulus divider and a method for performing frequency dividing by utilizing a multi-modulus divider are disclosed. The multi-modulus divider comprises a multi-modulus dividing circuit, a pulse generating circuit, and a modulus signal generating circuit. The multi-modulus dividing circuit comprises several serially connected divider cells, of which a predetermined one may be bypassed. The multi-modulus dividing circuit generates an output frequency according to an input frequency and a divisor. A range of the divisor comprises a plurality of numerical intervals. The pulse generating circuit generates a pulse signal. The modulus signal generating circuit generates a determination result by determining which numerical interval the divisor belongs to, and inputs, according to the determination result, the pulse signal into the predetermined divider cell to be one of references which the predetermined divider cell refers to when outputting a modulus signal. The predetermined divider cell corresponds to the determination result.

摘要翻译： 公开了一种使用多模式分频器进行分频的多模式分频器和方法。 多模式分配器包括多模式分频电路，脉冲发生电路和模数信号发生电路。 多模式分频电路包括几个串联的分频器单元，其中预定的分频器可以被旁路。 多模式分频电路根据输入频率和除数产生输出频率。 除数的范围包括多个数字间隔。 脉冲发生电路产生脉冲信号。 模数信号发生电路通过确定除数属于哪个数值间隔来产生确定结果，并且根据确定结果将预定分频器单元中的脉冲信号输入为当输出时预定分频单元参考的参考之一 模数信号。 预定的分频器单元对应于确定结果。

公开(公告)号：US07514981B2

公开(公告)日：2009-04-07

申请号：US11762500

申请日：2007-06-13

申请人： Chao-Tung Yang ,  Shuo-Yuan Hsiao

发明人： Chao-Tung Yang ,  Shuo-Yuan Hsiao

IPC分类号： H03D7/12

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0033

摘要： A mixer in a smaller signal differential model includes a load circuit, a switch quad, and a transconductor. The switch quad further including a first current path and a second current path is coupled to the load circuit. The connecting node of the switch quad and the load circuit is a differential-output terminal. The transconductor further includes a first resistor, a first operational amplifier, a second operational amplifier, a first current mirror, and a second current mirror. The resistor is coupled between two first input terminals of the first operational amplifier and the second operational amplifier. A current control terminal of the first current mirror is coupled to the first input terminal of the first operational amplifier, and a current mirroring terminal of the first current mirror is coupled to the first current path. A current control terminal of the second current mirror is coupled to the first input terminal of the second operational amplifier, and a current mirroring terminal of the second current mirror is coupled to the second current path. A differential voltage is applied between two second input terminals of the first operational amplifier and the second operational amplifier.

摘要翻译： 较小信号差分模型中的混频器包括负载电路，开关四极和跨导体。 进一步包括第一电流路径和第二电流路径的开关四极管耦合到负载电路。 开关四极和负载电路的连接节点是差分输出端子。 跨导体还包括第一电阻器，第一运算放大器，第二运算放大器，第一电流镜和第二电流镜。 电阻耦合在第一运算放大器和第二运算放大器的两个第一输入端之间。 第一电流镜的电流控制端耦合到第一运算放大器的第一输入端，并且第一电流镜的电流镜像端耦合到第一电流路径。 第二电流镜的电流控制端耦合到第二运算放大器的第一输入端，并且第二电流镜的电流镜像端耦合到第二电流路径。 在第一运算放大器和第二运算放大器的两个第二输入端之间施加差分电压。

公开(公告)号：US20080180156A1

公开(公告)日：2008-07-31

申请号：US11762500

申请日：2007-06-13

申请人： Chao-Tung Yang ,  Shuo-Yuan Hsiao

发明人： Chao-Tung Yang ,  Shuo-Yuan Hsiao

IPC分类号： H03D7/12

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0033

摘要： A mixer using a small signal differential model includes a load circuit, a switch quad, and a transconductor. The switch quad further including a first current path and a second current path is coupled to the load circuit. The connecting node of the switch quad and the load circuit is a differential-output terminal. The transconductor further includes a first resistor, a first operational amplifier, a second operational amplifier, a first current mirror, and a second current mirror. The resistor is coupled between two first input terminals of the first operational amplifier and the second operational amplifier. A current control terminal of the first current mirror is coupled to the first input terminal of the first operational amplifier, and a current mirroring terminal of the first current mirror is coupled to the first current path. A current control terminal of the second current mirror is coupled to the first input terminal of the second operational amplifier, and a current mirroring terminal of the second current mirror is coupled to the second current path. A differential voltage is applied between two second input terminals of the first operational amplifier and the second operational amplifier.

摘要翻译： 使用小信号差分模型的混频器包括负载电路，开关四极管和跨导体。 进一步包括第一电流路径和第二电流路径的开关四极管耦合到负载电路。 开关四极和负载电路的连接节点是差分输出端子。 跨导体还包括第一电阻器，第一运算放大器，第二运算放大器，第一电流镜和第二电流镜。 电阻耦合在第一运算放大器和第二运算放大器的两个第一输入端之间。 第一电流镜的电流控制端耦合到第一运算放大器的第一输入端，并且第一电流镜的电流镜像端耦合到第一电流路径。 第二电流镜的电流控制端耦合到第二运算放大器的第一输入端，并且第二电流镜的电流镜像端耦合到第二电流路径。 在第一运算放大器和第二运算放大器的两个第二输入端之间施加差分电压。

公开(公告)号：US07915947B2

公开(公告)日：2011-03-29

申请号：US12631138

申请日：2009-12-04

申请人： Ming-Chung Liu ,  Shuo-Yuan Hsiao

发明人： Ming-Chung Liu ,  Shuo-Yuan Hsiao

IPC分类号： H01L37/00

CPC分类号： G01K7/01

摘要： A proportional to absolute temperature (PTAT) sensor is capable of reducing a sensing error resulted from a mismatch between circuit components. The PTAT sensor includes a control unit, a sensing unit and a calculation unit. The control unit generates a control signal. The sensing unit, comprising at least a pair of circuit components having a matching relationship, senses an absolute temperature under the first connection configuration and the second connection configuration respectively to generate a first voltage value and a second voltage value, wherein the first connection configuration and the second connection configuration are decided by interchanging the circuit connections of the pair of circuit components according to the control signal. And the calculation unit, coupled to the sensing unit, calculates a PTAT voltage value according to the first voltage value and the second voltage values.

摘要翻译： 与绝对温度（PTAT）传感器成比例，能够减少由电路元件之间的不匹配引起的感测误差。 PTAT传感器包括控制单元，感测单元和计算单元。 控制单元生成控制信号。 包括至少一对具有匹配关系的电路部件的感测单元分别感测第一连接配置和第二连接配置下的绝对温度以产生第一电压值和第二电压值，其中第一连接配置和 通过根据控制信号交换一对电路部件的电路连接来决定第二连接配置。 并且耦合到感测单元的计算单元根据第一电压值和第二电压值计算PTAT电压值。