公开(公告)号：US20110109380A1

公开(公告)日：2011-05-12

申请号：US12617428

申请日：2009-11-12

申请人： Sunghyun Park ,  Xiaoyong Li ,  Tzu-wang Pan

发明人： Sunghyun Park ,  Xiaoyong Li ,  Tzu-wang Pan

IPC分类号： H03B1/00

CPC分类号： H03H11/126

摘要： An active analog filter (700, 1000) having a MOS capacitor device (730, 1030) with improved linearity is proposed. In an exemplary embodiment, dc bias voltage sources (755, 745) alter the capacitance of MOS varactors (740, 750) connected in anti parallel so that the total capacitance of the MOS capacitor device remains constant or within a range over the voltage range of the filter and the filter linearity is set. In a further exemplary embodiment the output stage (1070) of the operational amplifier circuit (1020) of the active analog filter (1000) is modified so that the dc bias voltage is provided by resistors (1055, 1045) connected to a current source (1060) already existing in the filter. Thus the linearity is set and the die area is significantly reduced.

摘要翻译： 提出了一种具有提高线性度的MOS电容器件（730,1030）的有源模拟滤波器（700,1000）。 在示例性实施例中，直流偏置电压源（755,745）改变以反并联方式连接的MOS可变电抗器（740,750）的电容，使得MOS电容器装置的总电容保持恒定或超过电压范围 滤波器和滤波器线性度被设置。 在另一示例性实施例中，有源模拟滤波器（1000）的运算放大器电路（1020）的输出级（1070）被修改，使得直流偏置电压由连接到电流源的电阻（1055,1045） 1060）已经存在于过滤器中。 因此，设置线性度并且模具面积显着减小。

公开(公告)号：US08143941B2

公开(公告)日：2012-03-27

申请号：US12617428

申请日：2009-11-12

申请人： Sunghyun Park ,  Xiaoyong Li ,  Tzu-wang Pan

发明人： Sunghyun Park ,  Xiaoyong Li ,  Tzu-wang Pan

IPC分类号： H03K5/00

CPC分类号： H03H11/126

摘要： An active analog filter (700, 1000) having a MOS capacitor device (730, 1030) with improved linearity is proposed. In an exemplary embodiment, dc bias voltage sources (755, 745) alter the capacitance of MOS varactors (740, 750) connected in anti parallel so that the total capacitance of the MOS capacitor device remains constant or within a range over the voltage range of the filter and the filter linearity is set. In a further exemplary embodiment the output stage (1070) of the operational amplifier circuit (1020) of the active analog filter (1000) is modified so that the dc bias voltage is provided by resistors (1055, 1045) connected to a current source (1060) already existing in the filter. Thus the linearity is set and the die area is significantly reduced.

摘要翻译： 提出了一种具有提高线性度的MOS电容器件（730,1030）的有源模拟滤波器（700,1000）。 在示例性实施例中，直流偏置电压源（755,745）改变以反并联方式连接的MOS可变电抗器（740,750）的电容，使得MOS电容器装置的总电容保持恒定或超过电压范围 滤波器和滤波器线性度被设置。 在另一示例性实施例中，有源模拟滤波器（1000）的运算放大器电路（1020）的输出级（1070）被修改，使得直流偏置电压由连接到电流源的电阻（1055,1045） 1060）已经存在于过滤器中。 因此，设置线性度并且模具面积显着减小。

公开(公告)号：US08138835B2

公开(公告)日：2012-03-20

申请号：US12796593

申请日：2010-06-08

申请人： Yi Zeng ,  Xiaoyong Li ,  Rahul A Apte

发明人： Yi Zeng ,  Xiaoyong Li ,  Rahul A Apte

IPC分类号： H03F3/04

CPC分类号： H03F1/0205 ,  H01B3/004 ,  H03F1/26 ,  H03F1/42 ,  H03F3/195 ,  H03F3/211 ,  H03F3/347 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/451

摘要： Techniques to improve low noise amplifiers (LNAs) with noise canceling are described. LNA includes a first and a second amplifier which work together to noise cancel the noise generated at an input stage circuit. The input stage circuit receives an RF signal and is characterized by a first node and a second node. The first amplifier converts a noise voltage at the first node into a first noise current at an output of the first amplifier. The second amplifier is directly coupled to the output of the first amplifier and provides noise canceling by summing the first noise current with a second noise current generated by the second amplifier as a function of the noise voltage at the second node. The proposed techniques eliminate the need for large ac coupling capacitors and reduce the die size occupied by the LNA. The elimination of ac coupling capacitors between amplification stages of the LNA allows current reuse resulting in reduced current consumption.

摘要翻译： 描述了改进具有噪声消除的低噪声放大器（LNA）的技术。 LNA包括第一和第二放大器，它们一起工作来噪声消除在输入级电路处产生的噪声。 输入级电路接收RF信号，其特征在于第一节点和第二节点。 第一放大器将第一节点处的噪声电压转换为第一放大器的输出处的第一噪声电流。 第二放大器直接耦合到第一放大器的输出，并且通过将第一噪声电流与由第二放大器产生的第二噪声电流相加作为第二节点处的噪声电压的函数来提供噪声消除。 所提出的技术消除了对大型交流耦合电容器的需要，并且减小了LNA占用的管芯尺寸。 在LNA的放大级之间消除交流耦合电容器允许电流重用，从而减少电流消耗。

公开(公告)号：US20080290957A1

公开(公告)日：2008-11-27

申请号：US12188135

申请日：2008-08-07

申请人： Xiaoyong Li ,  David J. Allstot

发明人： Xiaoyong Li ,  David J. Allstot

IPC分类号： H03K3/282

CPC分类号： H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1296 ,  H03B2200/0008

摘要： Embodiments of the present invention include a common-gate amplifier having an input terminal and an output terminal, a transistor having a source, a drain, and a gate, four inductors, and two capacitors, and a negative amplification circuitry. The negative amplification circuitry has an input terminal to receive an RF signal. The negative amplification circuitry applies negative or zero amplification to the RF signal and outputs the negative or zero amplified signal on an output terminal. Alternative embodiments include a Colpitts differential oscillator, which includes two Colpitts single-ended oscillators. Each Colpitts single-ended oscillator includes a transistor. The source of the transistor in one Colpitts single-ended oscillator may be capacitively coupled to the gate of the transistor in the other Colpitts single-ended oscillator.

摘要翻译： 本发明的实施例包括具有输入端和输出端的共栅放大器，具有源极，漏极和栅极的晶体管，四个电感器和两个电容器以及负极放大电路。 负放大电路具有用于接收RF信号的输入端。 负放大电路对RF信号施加负或零放大，并在输出端输出负或零放大信号。 替代实施例包括Colpitts差分振荡器，其包括两个Colpitts单端振荡器。 每个Colpitts单端振荡器都包括晶体管。 一个Colpitts单端振荡器中的晶体管的源极可以电容耦合到另一个Colpitts单端振荡器中的晶体管的栅极。

公开(公告)号：US20070146946A1

公开(公告)日：2007-06-28

申请号：US11588044

申请日：2006-10-26

申请人： Wusheng Chen ,  Fu Wang ,  Yong Dai ,  Xiaoyong Li ,  Huaiyin Song

发明人： Wusheng Chen ,  Fu Wang ,  Yong Dai ,  Xiaoyong Li ,  Huaiyin Song

IPC分类号： H02H3/00

CPC分类号： H01H83/14 ,  H01H73/44 ,  H01H83/04

摘要： A leakage current detection interrupter with fire protection means, comprising: (i) a leakage current protection circuit, (ii) an electrical cord with metallic fire shields, and (iii) a fire protection circuit, wherein, in operation, the leakage current protection circuit and the fire protection circuit detect a fault condition including a leakage current, a ground fault and a fire hazard, and disconnect the source of electricity from the at least one user accessible load when leakage current, ground fault or fire hazard is detected. The electrical cord with metallic fire shields, the fire protection circuit, and the indicator circuit can be combined with any ground fault circuit interrupter, arc fault circuit interrupter, immerse detection circuit interrupter, appliance leakage current interrupter and electronic leakage current interrupter.

摘要翻译： 一种具有防火装置的泄漏电流检测中断器，包括：（i）泄漏电流保护电路，（ii）具有金属防火屏蔽的电线，以及（iii）防火电路，其中在工作中，所述漏电流保护 电路和消防电路检测包括漏电流，接地故障和火灾危险的故障状况，并且在检测到漏电流，接地故障或火灾危险时，断开电源与至少一个用户可触及的负载。 具有金属防火屏蔽的电线，防火电路和指示器电路可以与任何接地故障电路断路器，电弧故障电路断路器，浸没检测电路中断器，器具漏电断路器和电子漏电断路器组合。

公开(公告)号：US08853539B2

公开(公告)日：2014-10-07

申请号：US12753266

申请日：2010-04-02

申请人： Xiangfa Ye ,  Yong Dai ,  Xiaoyong Li

发明人： Xiangfa Ye ,  Yong Dai ,  Xiaoyong Li

IPC分类号： H01B11/06 ,  H01B7/32

CPC分类号： H01B7/328

摘要： A cable having a current leakage detection function includes three current-carrying core wires. Each current-carrying core wire is wrapped by an insulating layer, so that the current-carrying core wires are electrically insulated from one another. The insulating layer of at least one of the current-carrying core wires is wrapped by a metal wire net. Current guiding wires in contact with the metal wire net or a single-sided conductive film laminated outside the metal wire net is utilized to achieve the effect of timely and effectively conducting a leakage current to a leakage current detection device, so as to improve the reliability of leakage current detection.

摘要翻译： 具有电流泄漏检测功能的电缆包括三个载流芯线。 每个载流芯线被绝缘层包裹，使得载流芯线彼此电绝缘。 载流芯线中的至少一个的绝缘层被金属丝网包裹。 利用与金属丝网接触的电流引导线或层叠在金属丝网外侧的单面导电膜来实现及时有效地将泄漏电流传导到泄漏电流检测装置的效果，从而提高可靠性 的漏电流检测。

公开(公告)号：US20120206208A1

公开(公告)日：2012-08-16

申请号：US13370146

申请日：2012-02-09

申请人： Yi Zeng ,  Xiaoyong Li ,  Rahul A. Apte

发明人： Yi Zeng ,  Xiaoyong Li ,  Rahul A. Apte

IPC分类号： H03F1/26

CPC分类号： H03F1/0205 ,  H01B3/004 ,  H03F1/26 ,  H03F1/42 ,  H03F3/195 ,  H03F3/211 ,  H03F3/347 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/451

摘要： Techniques to improve low noise amplifiers (LNAs) with noise canceling are described. LNA includes a first and a second amplifier which work together to noise cancel the noise generated at an input stage circuit. The input stage circuit receives an RF signal and is characterized by a first node and a second node. The first amplifier converts a noise voltage at the first node into a first noise current at an output of the first amplifier. The second amplifier is directly coupled to the output of the first amplifier and provides noise canceling by summing the first noise current with a second noise current generated by the second amplifier as a function of the noise voltage at the second node. The proposed techniques eliminate the need for large ac coupling capacitors and reduce the die size occupied by the LNA.

摘要翻译： 描述了改进具有噪声消除的低噪声放大器（LNA）的技术。 LNA包括第一和第二放大器，它们一起工作来噪声消除在输入级电路处产生的噪声。 输入级电路接收RF信号，其特征在于第一节点和第二节点。 第一放大器将第一节点处的噪声电压转换为第一放大器的输出处的第一噪声电流。 第二放大器直接耦合到第一放大器的输出，并且通过将第一噪声电流与由第二放大器产生的第二噪声电流相加作为第二节点处的噪声电压的函数来提供噪声消除。 所提出的技术消除了对大型交流耦合电容器的需要，并且减小了LNA占用的管芯尺寸。

公开(公告)号：US08154831B2

公开(公告)日：2012-04-10

申请号：US12606405

申请日：2009-10-27

申请人： Fu Wang ,  Xiangfa Ye ,  Yong Dai ,  Xiaoyong Li

发明人： Fu Wang ,  Xiangfa Ye ,  Yong Dai ,  Xiaoyong Li

IPC分类号： H02H3/04

CPC分类号： H01H83/14 ,  H01B7/328 ,  H01H73/44 ,  H01H83/04 ,  H02H3/334

摘要： A leakage current detection interrupter with fire protection means comprising: (i) a movable assembly housing; (ii) two fixed contact holders each having a fixed contact point; (iii)) two movable contact holders each having a fixed end and a movable end with a movable contact point; (iv) a movable assembly that moves between a first position and a second position; (v) a resetting component; (vi) a resetting component spring; (vii) an electromagnetic tripping component, which, when energized, which is responsive to a fault condition, causes the movable assembly to be in the second position from the first position; (viii) an leakage current protection circuit assembled on a printed circuit board for detecting the fault condition; and (ix) a set of three electrical wires: a first wire, a second wire, and a third wire to an appliance, wherein the first wire and the second wire are protected by a plurality of protective shields.

摘要翻译： 一种具有防火装置的泄漏电流检测中断器，包括：（i）可动组件壳体; （ii）两个具有固定接触点的固定触点支架; （iii））两个可动接触保持器，每个具有固定端和具有可动接触点的可动端; （iv）在第一位置和第二位置之间移动的可移动组件; （v）复位部件; （vi）复位部件弹簧; （vii）电磁跳闸部件，其在通电时响应于故障状态使得所述可移动组件处于从所述第一位置的第二位置; （viii）组装在印刷电路板上用于检测故障状况的漏电流保护电路; 和（ix）一组三根电线：第一线，第二线和第三线到器具，其中第一线和第二线被多个保护屏蔽保护。

公开(公告)号：US20070176703A1

公开(公告)日：2007-08-02

申请号：US11344549

申请日：2006-01-30

申请人： Xiaoyong Li ,  David Allstot

发明人： Xiaoyong Li ,  David Allstot

IPC分类号： H03B5/08

CPC分类号： H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1296 ,  H03B2200/0008

摘要： Embodiments of the present invention include a common-gate amplifier having an input terminal and an output terminal, a transistor having a source, a drain, and a gate, four inductors, and two capacitors, and a negative amplification circuitry. The negative amplification circuitry has an input terminal to receive an RF signal. The negative amplification circuitry applies negative or zero amplification to the RF signal and outputs the negative or zero amplified signal on an output terminal. Alternative embodiments include a Colpitts differential oscillator, which includes two Colpitts single-ended oscillators. Each Colpitts single-ended oscillator includes a transistor. The source of the transistor in one Colpitts single-ended oscillator may be capacitively coupled to the gate of the transistor in the other Colpitts single-ended oscillator.

摘要翻译： 本发明的实施例包括具有输入端和输出端的共栅放大器，具有源极，漏极和栅极的晶体管，四个电感器和两个电容器以及负极放大电路。 负放大电路具有用于接收RF信号的输入端。 负放大电路对RF信号施加负或零放大，并在输出端输出负或零放大信号。 替代实施例包括Colpitts差分振荡器，其包括两个Colpitts单端振荡器。 每个Colpitts单端振荡器都包括晶体管。 一个Colpitts单端振荡器中的晶体管的源极可以电容耦合到另一个Colpitts单端振荡器中的晶体管的栅极。

公开(公告)号：US07170375B2

公开(公告)日：2007-01-30

申请号：US11184713

申请日：2005-07-19

申请人： Wusheng Chen ,  Yong Dai ,  Xiaoyong Li

发明人： Wusheng Chen ,  Yong Dai ,  Xiaoyong Li

IPC分类号： H01H9/00 ,  H02H3/00

CPC分类号： H01H83/04 ,  H01H51/12 ,  H01H51/2209 ,  H01H89/08 ,  H01R13/5205 ,  H02H9/042

摘要： A permanent-magnet ground fault circuit interrupter plug with self-diagnosing function having an enclosure and a permanent-magnet mechanism encased in the enclosure. In one embodiment, the permanent-magnet mechanism includes a frame assembly having a crossbeam, a frame pressure post and a core connecting post positioned at each side of the crossbeam, a core attached to the core connecting post and positioned inside a coil assembly, a spring sleeved on the core connecting post and positioned therebetween an inner cam of the coil assembly and the crossbeam of the frame assembly; a circuit-breaking coil and a circuit-connecting coil wound on the coil assembly, respectively, a permanently magnet positioned proximately to the core, a pair of movable contact arms with each having one movable contact positioned at each lateral side of the frame pressure post for communicating with the frame assembly, a pair of fixed contacts positioned above the corresponding movable contacts, and a metal oxide varistor with one end electrically connected to a first terminal of a power source directly and the other end electrically connected to a second terminal of the power source from a load side across a circuit breaker.

摘要翻译： 一种具有自诊断功能的永磁接地故障电路断路器插头，具有外壳和外壳内的永磁机构。 在一个实施例中，永磁体机构包括框架组件，其具有横梁，框架压力柱和位于横梁的每一侧的芯连接柱，连接到芯连接柱并定位在线圈组件内的芯体， 弹簧套在芯连接柱上并定位在线圈组件的内凸轮和框架组件的横梁之间; 卷绕在线圈组件上的断路线圈和电路连接线圈分别设置在靠近芯部的永久磁铁;一对可动触头臂，每个可动接触臂具有位于框架压力柱的每个侧面的一个可动触头 用于与框架组件连通，位于相应的可动触头上方的一对固定触点，以及金属氧化物压敏电阻，其一端直接电连接到电源的第一端子，另一端电连接到电源的第二端子 通过断路器的负载侧的电源。