公开(公告)号：US08331884B1

公开(公告)日：2012-12-11

申请号：US12893604

申请日：2010-09-29

申请人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

发明人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

IPC分类号： H04B1/04 ,  H04B1/06

CPC分类号： H04B1/40 ,  H03G3/004

摘要： A voltage regulator for a radio frequency circuit including a master regulator circuit, a first slave regulator circuit, and a first radio frequency subcircuit. The master regulator circuit is configured to i) receive a reference voltage signal and a feedback signal and ii) output a control voltage signal based on the reference voltage signal and the feedback signal. The first slave regulator circuit is configured to i) receive the control voltage signal and ii) output a first regulated supply voltage signal based on the control voltage signal. The first radio frequency subcircuit is configured to receive the first regulated supply voltage signal. The control voltage signal corresponds to a desired supply voltage for the first radio frequency subcircuit.

摘要翻译： 一种用于射频电路的电压调节器，包括主调节器电路，第一从调节器电路和第一射频子电路。 主调节器电路被配置为i）接收参考电压信号和反馈信号，以及ii）基于参考电压信号和反馈信号输出控制电压信号。 第一从调节器电路被配置为i）接收控制电压信号，以及ii）基于控制电压信号输出第一稳压电源电压信号。 第一射频分支电路被配置为接收第一稳压电源电压信号。 控制电压信号对应于第一射频子电路的期望电源电压。

公开(公告)号：US07809339B1

公开(公告)日：2010-10-05

申请号：US11715027

申请日：2007-03-07

申请人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

发明人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

IPC分类号： H04B1/04 ,  H04B7/00

CPC分类号： H04B1/40 ,  H03G3/004

摘要： A voltage regulator comprises a master regulator circuit that receives a reference signal and that generates a feedback signal and a master bias signal. The master bias signal is based on the reference signal and the feedback signal. N slave regulator circuits receive the master bias signal from the master regulator circuit and output N regulated output signals to N circuits, respectively, where N is an integer greater than one.

摘要翻译： 电压调节器包括接收参考信号并产生反馈信号和主偏置信号的主调节器电路。 主偏置信号基于参考信号和反馈信号。 N个从调节器电路从主调节器电路接收主偏置信号，并分别将N个调节输出信号输出到N个电路，其中N是大于1的整数。

公开(公告)号：US07190936B1

公开(公告)日：2007-03-13

申请号：US10747522

申请日：2003-12-29

申请人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

发明人： Swee-Ann Teo ,  Lawrence Tse ,  Yonghua Song

IPC分类号： H04B1/04 ,  H04B1/06

CPC分类号： H04B1/40 ,  H03G3/004

摘要： A voltage regulator includes a master regulator circuit that receives a reference signal, that generates a master bias signal and that includes a transistor having a first gain. A first slave regulator circuit includes a first transistor having a second gain that is substantially equal to unity gain, a control terminal that receives the master bias signal from the master regulator circuit, a first terminal and a second terminal that outputs a first regulated output signal. A second slave regulator circuit includes a second transistor having a second gain that is substantially equal to unity gain, a control terminal that receives the master bias signal from the master regulator circuit, a first terminal, and a second terminal that outputs a second regulated output signal.

摘要翻译： 电压调节器包括主调节器电路，其接收产生主偏置信号并且包括具有第一增益的晶体管的参考信号。 第一从调节器电路包括具有基本上等于单位增益的第二增益的第一晶体管，从主调节器电路接收主偏置信号的控制端，输出第一调节输出信号的第一端和第二端， 。 第二从调节器电路包括具有基本上等于单位增益的第二增益的第二晶体管，从主调节器电路接收主偏置信号的控制端，第一端和输出第二调节输出的第二端 信号。

公开(公告)号：US07365582B1

公开(公告)日：2008-04-29

申请号：US10747520

申请日：2003-12-29

申请人： Swee-Ann Teo ,  Lawrence Tse

发明人： Swee-Ann Teo ,  Lawrence Tse

IPC分类号： H03L7/06

CPC分类号： H03L7/0896 ,  H03L7/18

摘要： A charge pump includes first and second pairs of differential transistors. Each transistor includes control, first, and second terminals. First and second charge pump drivers communicate with the control terminal of one of the first pair of differential transistors and one of the second pair of differential transistors, respectively. Third and fourth charge pump drivers communicate with the control terminal of the other of the first pair of differential transistors and the other of the second pair of differential transistors, respectively. The first through fourth charge pump drivers include respective pairs of differential transistors that receive control signals from respective control circuits.

摘要翻译： 电荷泵包括第一和第二对差分晶体管。 每个晶体管包括控制，第一和第二端子。 第一和第二电荷泵驱动器分别与第一对差分晶体管之一和第二对差分晶体管中的一个的控制端相通。 第三和第四电荷泵驱动器分别与第一对差分晶体管中的另一个和第二对差分晶体管中的另一个的控制端相通。 第一至第四电荷泵驱动器包括从各个控制电路接收控制信号的各对差分晶体管。

公开(公告)号：US07454634B1

公开(公告)日：2008-11-18

申请号：US11070481

申请日：2005-03-02

申请人： Timothy Donovan ,  Shafiq Jamal ,  Yonghua Song ,  Chia-Chun Chung ,  Tam Tran ,  Lawrence Tse

发明人： Timothy Donovan ,  Shafiq Jamal ,  Yonghua Song ,  Chia-Chun Chung ,  Tam Tran ,  Lawrence Tse

IPC分类号： G06F1/32

CPC分类号： H04W52/029 ,  Y02D70/142 ,  Y02D70/22

摘要： A wireless network device having active and inactive modes comprises a clock generating module that generates a first clock signal having a first clock rate. A voltage supply module generates a first voltage level and a second voltage level that is less than the first voltage level. A first digital module receives the first clock rate and the first voltage level during the active mode, receives the second voltage level during the inactive mode and does not receive the first clock signal during the inactive mode. A first analog module communicates with the voltage supply module and has reduced current consumption during the inactive mode.

摘要翻译： 具有有源和不活动模式的无线网络设备包括产生具有第一时钟速率的第一时钟信号的时钟产生模块。 电压供应模块产生小于第一电压电平的第一电压电平和第二电压电平。 第一数字模块在活动模式期间接收第一时钟速率和第一电压电平，在非活动模式期间接收第二电压电平，并且在非活动模式期间不接收第一时钟信号。 第一模拟模块与电压供应模块通信，并且在非活动模式期间具有减少的电流消耗。

公开(公告)号：US08027644B2

公开(公告)日：2011-09-27

申请号：US12881226

申请日：2010-09-14

申请人： Xiaodong Jin ,  Sehat Sutardja ,  Lawrence Tse

发明人： Xiaodong Jin ,  Sehat Sutardja ,  Lawrence Tse

IPC分类号： H04B1/38

CPC分类号： H04B1/0064 ,  H04B7/0805

摘要： A transceiver system includes a first receive path with a first antenna configured to receive first signals, a first configuration switch, a first low noise amplifier configured to amplify the first signals, a second configuration switch, and a receiver. The first receive path is selectively configured to supply the amplified first signals to the receiver via the first antenna, the first configuration switch, the first low noise amplifier, and the second configuration switch. A second receive path includes a second antenna configured to receive second signals, a second low noise amplifier configured to amplify the second signals, the second configuration switch, and the receiver. The second receive path (i) includes fewer configuration switches than the first receive path and (ii) is selectively configured to supply the amplified second signals to the receiver via the second antenna, the second low noise amplifier, and the second configuration switch.

摘要翻译： 收发机系统包括具有被配置为接收第一信号的第一天线的第一接收路径，第一配置开关，被配置为放大第一信号的第一低噪声放大器，第二配置开关和接收器。 第一接收路径被选择性地配置为经由第一天线，第一配置开关，第一低噪声放大器和第二配置开关将放大的第一信号提供给接收器。 第二接收路径包括被配置为接收第二信号的第二天线，配置成放大第二信号的第二低噪声放大器，第二配置开关和接收器。 第二接收路径（i）包括比第一接收路径更少的配置开关，以及（ii）被选择性地配置为经由第二天线，第二低噪声放大器和第二配置开关将经放大的第二信号提供给接收机。

公开(公告)号：US07796952B1

公开(公告)日：2010-09-14

申请号：US10701626

申请日：2003-11-06

申请人： Xiaodong Jin ,  Sehat Sutardja ,  Lawrence Tse

发明人： Xiaodong Jin ,  Sehat Sutardja ,  Lawrence Tse

IPC分类号： H04B1/38

CPC分类号： H04B1/0064 ,  H04B7/0805

摘要： A system for communicating information signals includes a receiver in selective communication with a first antenna and a second antenna. The receiver is configured to selectively receive information signals via the first or second antenna. The system includes a first low-noise amplifier in communication with the first antenna and in selective communication with the receiver. The first low-noise amplifier is configured to amplify a first information signal received by the first antenna to generate a first amplified signal. The system includes a second low-noise amplifier in communication with the second antenna and in selective communication with the receiver. At least the first and second low-noise amplifiers are formed on a monolithic substrate. The second low-noise amplifier is configured to amplify a second information signal received by the second antenna to generate a second amplified signal. Either the first or second amplified signal is selectively applied to the receiver.

摘要翻译： 用于传送信息信号的系统包括与第一天线和第二天线选择性通信的接收机。 接收器被配置为经由第一或第二天线选择性地接收信息信号。 该系统包括与第一天线通信并与接收机选择性通信的第一低噪声放大器。 第一低噪声放大器被配置为放大由第一天线接收的第一信息信号以产生第一放大信号。 该系统包括与第二天线通信并与接收机选择性通信的第二低噪声放大器。 至少第一和第二低噪声放大器形成在单片基板上。 第二低噪声放大器被配置为放大由第二天线接收的第二信息信号以产生第二放大信号。 第一或第二放大信号被选择性地施加到接收器。

公开(公告)号：US07315197B1

公开(公告)日：2008-01-01

申请号：US11387391

申请日：2006-03-23

申请人： Jun Ming ,  Randy Tsang ,  Lawrence Tse

发明人： Jun Ming ,  Randy Tsang ,  Lawrence Tse

IPC分类号： G05F1/10

CPC分类号： H02M3/07

摘要： A charge pump comprises a limit swing generator that receives an input signal and that generates a drive signal based on the input signal. A charge pump core includes output switches that generate a charge pump output in response to the drive signal. The drive signal includes a voltage level. The limit swing generator includes at least one voltage generator to control the voltage level of the drive signal such that the drive signal tracks a parametric variable of the output switches.

摘要翻译： 电荷泵包括接收输入信号并基于输入信号产生驱动信号的极限摆动发生器。 电荷泵芯包括响应于驱动信号产生电荷泵输出的输出开关。 驱动信号包括电压电平。 极限摆动发生器包括至少一个电压发生器来控制驱动信号的电压电平，使得驱动信号跟踪输出开关的参数变量。

公开(公告)号：US07190230B1

公开(公告)日：2007-03-13

申请号：US11435995

申请日：2006-05-17

申请人： Xiaodong Jin ,  Lawrence Tse ,  King Chun Tsai ,  George Chien

发明人： Xiaodong Jin ,  Lawrence Tse ,  King Chun Tsai ,  George Chien

IPC分类号： H03F3/04

CPC分类号： H03F3/193 ,  H03F1/223

摘要： A low noise amplifier (LNA) comprises an amplifier having an inverting input, a non-inverting input and an output. A first transistor has a control input that communicates with said output of said amplifier, a first terminal that generates a LNA output current and a second terminal that communicates with said inverting input. A device communicates with said second terminal of said first transistor, includes an output and has a resistance that is modulated in response to an input voltage to said LNA. The device is a variable resistor.

摘要翻译： 低噪声放大器（LNA）包括具有反相输入，非反相输入和输出的放大器。 第一晶体管具有与所述放大器的所述输出通信的控制输入端，产生LNA输出电流的第一端子和与所述反相输入端通信的第二端子。 与所述第一晶体管的所述第二端子通信的装置包括输出端，并具有响应于所述LNA的输入电压而被调制的电阻。 该器件是一个可变电阻器。

公开(公告)号：US07177620B1

公开(公告)日：2007-02-13

申请号：US10388920

申请日：2003-03-14

申请人： King Chun Tsai ,  Lawrence Tse

发明人： King Chun Tsai ,  Lawrence Tse

IPC分类号： H04B1/28 ,  H04B1/26

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0043 ,  H03D2200/0084 ,  H03D2200/0096

摘要： A Gilbert cell mixer for a wireless transceiver includes a first stage that performs voltage to current conversions and that includes first and second transistors that are operated in a saturation region and third and fourth transistors that are operated in a triode region. A second stage communicates with the first stage and that performs frequency conversion. A biasing circuit communicates with the first stage to maintain a substantially constant input linear range over temperature and process variations.

摘要翻译： 用于无线收发器的吉尔伯特单元混合器包括执行电压到电流转换的第一级，并且包括在饱和区域中操作的第一和第二晶体管以及在三极管区域中操作的第三和第四晶体管。 第二级与第一级通信并执行频率转换。 偏置电路与第一级通信，以保持温度和过程变化之间基本恒定的输入线性范围。