公开(公告)号：EP1955437B1

公开(公告)日：2017-11-29

申请号：EP06825546.2

申请日：2006-10-04

申请人： Analog Devices, Inc.

发明人： BROKAW, Paul, Adrian

IPC分类号： H03F1/32 ,  H03F1/34 ,  H03F3/343 ,  H03F3/45 ,  H03F3/42 ,  H03F3/50 ,  H03F1/52 ,  H03F3/345

CPC分类号： H03F3/45278 ,  H03F1/3211 ,  H03F1/34 ,  H03F1/52 ,  H03F3/343 ,  H03F3/3435 ,  H03F3/345 ,  H03F3/42 ,  H03F3/4578 ,  H03F3/50 ,  H03F2200/426 ,  H03F2200/45 ,  H03F2200/91 ,  H03F2203/45526 ,  H03F2203/45722

公开(公告)号：EP3114761A4

公开(公告)日：2017-11-22

申请号：EP14884686

申请日：2014-03-07

申请人： NOKIA TECHNOLOGIES OY

发明人： WANG ZHANCANG

IPC分类号： H02M3/157 ,  H02M1/00 ,  H03F1/02 ,  H03F3/19 ,  H03F3/24 ,  H03F3/343

CPC分类号： H03F1/0227 ,  H02M2001/0045 ,  H03F3/19 ,  H03F3/245 ,  H03F3/3432 ,  H03F2200/102 ,  H03F2200/432 ,  H03F2200/91

摘要： Embodiments of the invention provide a current sensor. The current sensor comprises: a current sensing element having a first sensing terminal and a second sensing terminal, a first current mirror network CMN cell, a second CMN cell and a third CMN cell. The first CMN cell comprises: a first CMN that has a first high impedance terminal, a first low impedance terminal and a first output terminal, and a first local current mode feedback network LCMFN connected between the first output terminal and the first low impedance terminal. The first CMN cell is DC-coupled to the first sensing terminal of the current sensing element via the first high impedance terminal and operative to generate a first output signal according to the current sensed at the first sensing terminal. The second CMN cell comprises: a second CMN that has a second high impedance terminal, a second low impedance terminal and a second output terminal, and a second LCMFN connected between the second output terminal and the second low impedance terminal. The second CMN cell is DC-coupled to the second sensing terminal of the current sensing element via the second high impedance terminal and operative to generate a second output signal according to the current sensed at the second sensing terminal. The third CMN cell comprises: a third CMN that has a third high impedance terminal, a third low impedance terminal and a third output terminal, and a third LCMFN connected between the third output terminal and the third low impedance terminal. The third CMN cell receives the first output signal and the second output signal via the third high impedance terminal and the third low impedance terminal, respectively and is operative to generate a third output signal according to a combination of the first output signal and the second output signal.

公开(公告)号：EP3089366A1

公开(公告)日：2016-11-02

申请号：EP15190380.4

申请日：2015-10-19

申请人： MediaTek, Inc

发明人： Chung, Yuan-Hung ,  Hsu, Ming-Yeh

IPC分类号： H03H11/12 ,  H03F3/45 ,  G05F3/26

CPC分类号： H03H11/0461 ,  H03F3/45273 ,  H03F2200/91 ,  H03H11/0405 ,  H03H11/0416 ,  H03H11/0466 ,  H03H11/1213 ,  H03H2011/0411

摘要： A frequency selective circuit includes a first transistor, an impedance element, a first capacitive element, a second capacitive element, a second capacitive and a second transistor. The first transistor includes a first terminal, a second terminal and a control terminal. The impedance element is coupled between the first terminal and the control terminal of the first transistor. The first capacitive element is coupled to the first terminal of the first transistor. The second capacitive element is coupled to the control terminal of the first transistor. The second transistor includes a first terminal, a second terminal and a control terminal, wherein the control terminal of the second transistor is coupled to the control terminal of the first transistor.

摘要翻译： 频率选择电路包括第一晶体管，阻抗元件，第一电容元件，第二电容元件，第二电容和第二晶体管。 第一晶体管包括第一端子，第二端子和控制端子。 阻抗元件耦合在第一晶体管的第一端子和控制端子之间。 第一电容元件耦合到第一晶体管的第一端子。 第二电容元件耦合到第一晶体管的控制端子。 第二晶体管包括第一端子，第二端子和控制端子，其中第二晶体管的控制端子耦合到第一晶体管的控制端子。

公开(公告)号：EP2717466B1

公开(公告)日：2016-08-10

申请号：EP12789077.0

申请日：2012-05-22

申请人： Consejo Superior De Investigaciones Científicas (CSIC)

发明人： SERRANO GOTARREDONA, Teresa ,  LINARES BARRANCO, Bernabé

IPC分类号： H03F3/08 ,  H03F3/345 ,  H03F1/08 ,  H04N5/378

CPC分类号： H04N5/378 ,  H03F1/086 ,  H03F3/082 ,  H03F3/345 ,  H03F2200/456 ,  H03F2200/91

公开(公告)号：EP2602930A4

公开(公告)日：2015-01-14

申请号：EP11814220

申请日：2011-04-26

申请人： NEC CORP

发明人： HORI SHINICHI

IPC分类号： H03F1/02 ,  H03F3/189 ,  H03F3/217 ,  H03F3/24 ,  H04B1/04 ,  H04W52/02

CPC分类号： H04W52/0209 ,  H03F1/0222 ,  H03F3/189 ,  H03F3/217 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/336 ,  H03F2200/408 ,  H03F2200/91

摘要： A transmitter (100) according to the present invention includes an RF signal generator (1a) and a current mode class-D amplifier (2a). The RF signal generator (1a) divides an input radio signal into an amplitude signal (r(t)) and a rectangular phase signal (Rth(t)) and outputs the amplitude signal and the rectangular phase signal. The current mode class-D amplifier (2a) amplifies the radio signal with the amplitude signal (r(t)) and the rectangular phase signal (Rth(t)). The current mode class-D amplifier (2a) includes variable current sources (21, 22) that are controlled by the amplitude signal (r(t)) and supply a current to the current mode class-D amplifier (2a). The current mode class-D amplifier (2a) includes switching elements (23, 24) that connect the variable current sources (21, 22) to one of a terminal connected a ground potential GND and an output terminal according to the rectangular phase signal (Rth(t)).

摘要翻译： 根据本发明的发射机（100）包括RF信号发生器（1a）和电流模式D类放大器（2a）。 RF信号发生器（1a）将输入无线电信号分成振幅信号（r（t））和矩形相位信号（Rth（t）），并输出振幅信号和矩形相位信号。 电流模式D类放大器（2a）用振幅信号（r（t））和矩形相位信号（Rth（t））放大无线电信号。 电流模式D类放大器（2a）包括由振幅信号（r（t））控制的可变电流源（21,22），并将电流提供给电流模式D类放大器（2a）。 电流模式D类放大器（2a）包括根据矩形相位信号将可变电流源（21,22）连接到连接到地电位GND和输出端子的端子之一的开关元件（23,24） RTH（T））。

公开(公告)号：EP3114761A1

公开(公告)日：2017-01-11

申请号：EP14884686.8

申请日：2014-03-07

申请人： Nokia Technologies OY

发明人： WANG, Zhancang

IPC分类号： H02M3/157

CPC分类号： H03F1/0227 ,  H02M2001/0045 ,  H03F3/19 ,  H03F3/245 ,  H03F3/3432 ,  H03F2200/102 ,  H03F2200/432 ,  H03F2200/91

摘要： Embodiments of the invention provide a current sensor. The current sensor comprises: a current sensing element having a first sensing terminal and a second sensing terminal, a first current mirror network CMN cell, a second CMN cell and a third CMN cell. The first CMN cell comprises: a first CMN that has a first high impedance terminal, a first low impedance terminal and a first output terminal, and a first local current mode feedback network LCMFN connected between the first output terminal and the first low impedance terminal. The first CMN cell is DC-coupled to the first sensing terminal of the current sensing element via the first high impedance terminal and operative to generate a first output signal according to the current sensed at the first sensing terminal. The second CMN cell comprises: a second CMN that has a second high impedance terminal, a second low impedance terminal and a second output terminal, and a second LCMFN connected between the second output terminal and the second low impedance terminal. The second CMN cell is DC-coupled to the second sensing terminal of the current sensing element via the second high impedance terminal and operative to generate a second output signal according to the current sensed at the second sensing terminal. The third CMN cell comprises: a third CMN that has a third high impedance terminal, a third low impedance terminal and a third output terminal, and a third LCMFN connected between the third output terminal and the third low impedance terminal. The third CMN cell receives the first output signal and the second output signal via the third high impedance terminal and the third low impedance terminal, respectively and is operative to generate a third output signal according to a combination of the first output signal and the second output signal.

摘要翻译： 本发明的实施例提供一种电流传感器。 电流传感器包括：具有第一感测端子和第二感测端子的电流感测元件，第一电流镜像网络CMN单元，第二CMN单元和第三CMN单元。 第一CMN单元包括：具有第一高阻抗端子，第一低阻抗端子和第一输出端子的第一CMN以及连接在第一输出端子和第一低阻抗端子之间的第一局部电流模式反馈网络LCMFN。 第一CMN单元经由第一高阻抗端子直流耦合到电流感测元件的第一感测端子，并且可操作以根据在第一感测端子处感测到的电流产生第一输出信号。 第二CMN单元包括：具有第二高阻抗端子的第二CMN，第二低阻抗端子和第二输出端子，以及连接在第二输出端子和第二低阻抗端子之间的第二LCMFN。 第二CMN单元经由第二高阻抗端子直流耦合到电流感测元件的第二感测端子，并且可操作以根据在第二感测端子处感测到的电流产生第二输出信号。 第三CMN单元包括：具有第三高阻抗端子的第三CMN，第三低阻抗端子和第三输出端子，以及连接在第三输出端子和第三低阻抗端子之间的第三LCMFN。 第三CMN单元分别经由第三高阻抗端子和第三低阻抗端子接收第一输出信号和第二输出信号，并且可操作以根据第一输出信号和第二输出端的组合产生第三输出信号 信号。

公开(公告)号：EP2291789A1

公开(公告)日：2011-03-09

申请号：EP09798451.2

申请日：2009-06-22

申请人： Gigle Networks, Inc.

发明人： BOFILL-PETIT, Adrià ,  HENDERSON, Robert, K. ,  HURWITZ, Jonathan, Ephraim, David

IPC分类号： G06G7/12

CPC分类号： H03F3/45475 ,  H03F3/45273 ,  H03F3/45632 ,  H03F3/45928 ,  H03F2200/91 ,  H03F2203/45538 ,  H03F2203/45588

摘要： A resistor-input transconductor includes a circuit configured to generate a common-mode compensation current. The common-mode compensation current is used to compensate for the common-mode voltage of the inputs. A current output of the resistor-input transconductor is proportional to a voltage difference between the two inputs and essentially independent of a common-mode voltage of the two inputs. The resistor input transconductor may be applied in a variety of applications including, for example, communications.

摘要翻译： 电阻器输入跨导器包括被配置为产生共模补偿电流的电路。 共模补偿电流用于补偿输入的共模电压。 电阻输入跨导器的电流输出与两个输入之间的电压差成正比，并且基本上与两个输入的共模电压无关。 电阻器输入跨导器可以应用于各种应用，包括例如通信。

公开(公告)号：EP1756690B1

公开(公告)日：2011-01-05

申请号：EP05759175.2

申请日：2005-06-15

申请人： Analog Devices, Inc.

发明人： BOTKER, Thomas, L. ,  DOUTS, Benjamin, A.

IPC分类号： G05F3/26

CPC分类号： H03F1/086 ,  G05F3/262 ,  H03F3/217 ,  H03F3/38 ,  H03F3/393 ,  H03F3/45179 ,  H03F3/45273 ,  H03F3/45744 ,  H03F2200/261 ,  H03F2200/91 ,  H03F2203/45592

摘要： A chopper-stabilized current mirror includes a pair of FETs connected to mirror an input current Iin,. In one embodiment, switching networks S1 and S2 have their respective inputs connected to the FETs' drains, and are operated with clock signals CLK1 and CLK2, respectively. An ro boost amplifier Al has its inputs connected to the outputs of S2 and its outputs connected to the gates of a pair of cascode FETs via a switching network S3 which, is operated with clock signal CLK2S, with the drain of one cascode FET connected to Iin and the drain of the other providing the mirror's output Iout Sl is clocked to reduce mismatch errors and S2 and S3 are clocked to reduce errors due to Al's offset voltage, with CLK2 and CLK2S shifted with respect to CLK1 to reduce errors due to parasitic capacitances.

公开(公告)号：EP2165415A1

公开(公告)日：2010-03-24

申请号：EP07769043.6

申请日：2007-07-05

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： LEJON, Thomas

IPC分类号： H03F3/217 ,  H03F1/02

CPC分类号： H03F3/217 ,  H03F3/193 ,  H03F3/2176 ,  H03F2200/91

摘要： The present invention concerns an amplifying device arranged to receive an input signal having a certain duty cycle. The amplifying device comprise a first switching unit having an input terminal adapted to receive a first half of the input signal, and an output terminal adapted to be connected to a first signal output where a first half of an output signal is provided. The amplifying device comprise a second switching unit having an input terminal adapted to receive a second half of the input signal and an output terminal adapted to be connected to a second signal output where a second half of the output signal is provided. Also, the first switching unit and the second switching units are adapted to receive an input signal, wherein the first half of said input signal has the same duty cycle as the second half of the input signal but shifted in phase. The present invention also concerns a wireless transceiver and a radio transmission device.

摘要翻译： 本发明涉及一种放大装置，用于接收具有特定占空比的输入信号。 放大装置包括第一开关单元和第二开关单元，第一开关单元具有适于接收输入信号的第一半的输入端子和适于连接到第一信号输出的输出端子，其中第一半输出信号被提供。 放大装置包括第二开关单元，该第二开关单元具有适于接收输入信号的第二半的输入端子和适于连接到第二信号输出的输出端子，其中输出信号的第二半被提供。 而且，第一开关单元和第二开关单元适于接收输入信号，其中所述输入信号的前半部分与输入信号的后半部分具有相同的占空比，但是同相移动。 本发明还涉及无线收发器和无线电传输装置。

公开(公告)号：EP1955437A1

公开(公告)日：2008-08-13

申请号：EP06825546.2

申请日：2006-10-04

申请人： Analog Devices, Inc.

发明人： BROKAW, Paul, A.

IPC分类号： H03F1/52 ,  H03F3/45 ,  H03F3/347 ,  H03F3/42 ,  H03F3/50

CPC分类号： H03F3/45278 ,  H03F1/3211 ,  H03F1/34 ,  H03F1/52 ,  H03F3/343 ,  H03F3/3435 ,  H03F3/345 ,  H03F3/42 ,  H03F3/4578 ,  H03F3/50 ,  H03F2200/426 ,  H03F2200/45 ,  H03F2200/91 ,  H03F2203/45526 ,  H03F2203/45722

摘要： A small signal amplifier with a large signal output boost stage are connected between first and second supply rails. The small signal amplifier receives first and second input signals and provides an output signal at an output node which drives a load. Under small signal conditions, the output signal varies approximately linearly with the difference voltage. However, under large signal conditions, a rail-to-rail large signal output boost stage connected to the output node is arranged to drive the output node close to the first or second supply rail as needed to provide the current demanded by the load. The large signal output boost stage is off in small signal conditions, but comes on rapidly and transfers maximum charge to the load under large signal conditions.

摘要翻译： 具有大信号输出升压级的小信号放大器连接在第一和第二电源轨之间。 小信号放大器接收第一和第二输入信号，并在驱动负载的输出节点处提供输出信号。 在小信号条件下，输出信号随差电压大致线性变化。 然而，在大信号条件下，连接到输出节点的轨到轨大信号输出升压级被布置成根据需要驱动靠近第一或第二电源轨的输出节点以提供负载所要求的电流。 大信号输出升压级在小信号条件下处于关断状态，但是在大信号条件下能够快速传送到负载的最大电荷。