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    GATE DRIVE CIRCUIT
    2.
    发明授权
    GATE DRIVE CIRCUIT 有权

    公开(公告)号：EP3243275B1

    公开(公告)日：2018-10-17

    申请号：EP16700935.6

    申请日：2016-01-05

    Applicant: Bose Corporation

    Inventor： NUSSBAUM, Michael B. ,  CORIC, Zoran

    IPC: H03F3/185 ,  H03K3/013 ,  H03K17/687 ,  H03F3/217 ,  H03F1/52 ,  H03F3/72

    CPC classification number: H03K17/687 ,  H03F1/52 ,  H03F3/185 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/2178 ,  H03F3/72 ,  H03F2200/03 ,  H03F2200/534 ,  H03K3/013

    Abstract: Example circuitry includes: a transformer circuit having first windings and second windings, where the second windings are magnetically orthogonal to the first windings; first transistors to provide a first voltage to a load, where each of the first transistors is responsive to a first control signal that is based on a first signal through a first winding; second transistors to provide a second voltage to the load, where each of the second transistors is responsive to a second control signal that is based on the first through the first winding, and where the first and second control signals cause the first transistors to operate in a different switching state than the second transistors; and control circuitry responsive to signals received through the second windings to control the first transistors and the second transistors to operate in a same switching state.

    AMPLIFICATION OF A RADIO FREQUENCY SIGNAL
    3.
    发明公开
    AMPLIFICATION OF A RADIO FREQUENCY SIGNAL 审中-公开
    无线电频率信号的放大

    公开(公告)号：EP3005542A1

    公开(公告)日：2016-04-13

    申请号：EP13886093.7

    申请日：2013-05-29

    Applicant: Nokia Technologies Oy

    Inventor： WANG, Zhancang

    IPC: H02M3/00

    CPC classification number: H03F1/0205 ,  H02M3/1584 ,  H02M2001/0045 ,  H03F1/0222 ,  H03F1/3247 ,  H03F3/193 ,  H03F3/195 ,  H03F3/21 ,  H03F2200/102 ,  H03F2200/129 ,  H03F2200/18 ,  H03F2200/216 ,  H03F2200/225 ,  H03F2200/336 ,  H03F2200/391 ,  H03F2200/42 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/534 ,  H03F2200/75

    Abstract: Apparatus (1) comprises envelope signal amplification circuitry (11) configured to receive an input envelope signal (ENV_in) indicative of an envelope of an input radio frequency signal (RF_in) and to output an amplified envelope signal (ENV_amp); and a radio frequency power amplifier (12) configured to receive a radio frequency control signal which is dependent on the input radio frequency signal(RF_in) and the input envelope signal (ENV_in), using the amplified envelope signal (ENV_amp) as its supply voltage, to output an amplified radio frequency signal (RF_amp). A method for amplification the radio frequency signal is also provided.

    Abstract translation: 设备（1）包括被配置为接收指示输入射频信号（RF_in）的包络的输入包络信号（ENV_in）并且输出放大的包络信号（ENV_amp）的包络信号放大电路（11）; 以及射频功率放大器（12），被配置为使用放大的包络信号（ENV_amp）作为其电源电压来接收取决于输入射频信号（RF_in）和输入包络信号（ENV_in）的射频控制信号 输出放大的射频信号（RF_amp）。 还提供了用于放大射频信号的方法。

    METHOD AND ARRANGEMENT FOR DRIVING A MICROPHONE
    5.
    发明公开
    METHOD AND ARRANGEMENT FOR DRIVING A MICROPHONE 有权
    VERFAHREN UND VORRICHTUNG ZUR ANSTEUERUNG EINES MIKROFONS

    公开(公告)号：EP2532090A4

    公开(公告)日：2014-10-22

    申请号：EP10845362

    申请日：2010-09-13

    Applicant: RES ELECTRONICS LEKSAND AB

    Inventor： ERIKSSON SVEN-ÄKE

    IPC: H03F3/183 ,  H03F1/56 ,  H03F3/45 ,  H04R19/04

    CPC classification number: H03F3/183 ,  H03F3/45076 ,  H03F2200/534 ,  H03F2203/45228

    Abstract: Disclosed is a differential microphone pre-amplifier circuit (120) for providing an amplified differential signal at a first (A) and a second (B) output terminal of the microphone pre-amplifier (120), including a first voltage controlled current generator (101), a second voltage controlled current generator (102) and a third voltage controlled current generator (103) all being configured to receive, amplify and convert a voltage signal generated by an associated microphone (110) to a current signal output.

    Abstract translation: 公开了一种差分麦克风前置放大器电路（120），用于在麦克风前置放大器（120）的第一（A）和第二（B）输出端提供放大的差分信号，包括第一压控电流发生器 101），第二压控电流发生器（102）和第三压控电流发生器（103），其全部被配置为接收，放大并将由相关联的麦克风（110）产生的电压信号转换成电流信号输出。

    LOW DISTORTION FILTERS
    6.
    发明公开
    LOW DISTORTION FILTERS 审中-公开
    过滤器MER GERINGER VERZERRUNG

    公开(公告)号：EP2612438A2

    公开(公告)日：2013-07-10

    申请号：EP11821223.2

    申请日：2011-09-02

    Applicant: Secretary, Department Of Information Technology (DIT) ,  Indian Institute of Technology-Madras

    Inventor： PAVAN, Yendluri, Shanthi ,  THYAGARAJAN, Siva, Viswanathan

    IPC: H03F1/32 ,  H03H11/00

    CPC classification number: H03H11/02 ,  H03F3/211 ,  H03F3/45192 ,  H03F3/45654 ,  H03F2200/405 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/45418 ,  H03F2203/45424 ,  H03F2203/45512 ,  H03F2203/45526 ,  H03F2203/45528 ,  H03F2203/45594 ,  H03F2203/45702

    Abstract: An integrated continuous-time active-RC filter comprises a set of opamp integrators with Operational Transconductance Amplifiers (OTAs). The filter further includes at least one assistant connected between the input and output of each of the integrators of the set to enhance the linearity and speed of the opamp integrators of the set. The assistant comprises a plurality of sets of transconductors connected in parallel to each other wherein each set of transconductors is formed by a pair of MOSFETs connected in series, with one MOSFET operating in the triode region and the other MOSFET operating in the saturation region. The assistant is configured to provide an assistant current to be injected into the source of each of the integrators in the set to enhance the linearity and speed of the opamp integrators of the set.

    Abstract translation: 集成的连续时间有源RC滤波器包括一组具有运算放大器（OpAs）的运算放大器积分器，以及连接在该组的每个积分器的输入和输出端之间的至少一个辅助跨导体; 其中所述辅助跨导体包括彼此并联连接的多组MOSFET，其中每组MOSFETS由串联连接的一对MOSFET形成，其中一对MOSFET在三极管区域中工作，另一个MOSFET为 对在饱和区域中工作; 并且其中所述辅助跨导体被配置为将辅助电流注入到所述组中的每个积分器的输出中，以增强所述组的运算放大器积分器的线性度和速度。

    Structure de balun actif réciproque à large bande passante
    7.
    发明公开
    Structure de balun actif réciproque à large bande passante 有权
    活动倒数宽带平衡 - 不平衡

    公开(公告)号：EP2058947A3

    公开(公告)日：2013-07-03

    申请号：EP08168497.9

    申请日：2008-11-06

    Applicant: THALES

    Inventor： Plaze, Jean-Michel ,  Dueme, Philippe ,  Mallet-Guy, Benoît

    IPC: H03H11/32 ,  H03F1/22 ,  H03F3/21 ,  H03F3/60 ,  H03F3/62

    CPC classification number: H03H11/32 ,  H03D7/1458 ,  H03D2200/0023 ,  H03F1/223 ,  H03F3/211 ,  H03F3/604 ,  H03F3/607 ,  H03F3/62 ,  H03F2200/06 ,  H03F2200/09 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2200/543

    Abstract: La présente invention concerne le domaine des dispositifs électroniques connus sous le nom de "baluns". Elle se rapporte à un dispositif constituant un balun actif, large bande c'est à dire couvrant plus d'une octave, et réciproque.
    Le dispositif selon l'invention associe un élément balun diviseur actif (30) avec un élément balun combineur actif (40), ces éléments étant associés de façon à constituer trois lignes de transmission (55,56,57). Un premier couplage actif est réalisé entre la première (57) et la deuxième ligne de transmission (55) et un second couplage actif est réalisé entre la première (57) et la troisième ligne de transmission (56). Les couplages actifs sont réalisés au moyen de cellules amplificatrices (31,41,32,42) réparties le long des lignes de transmission. Le dispositif selon l'invention comporte également des moyens configurables pour polariser les différentes cellules amplificatrices de façon à induire un sens de couplage déterminé entre la première et la deuxième ligne de transmission d'une part et entre la première et la troisième ligne de transmission d'autre part. Le dispositif selon l'invention trouve son application dans le domaine des mélangeurs à large bande passante, employés notamment dans les chaînes d'émission et de réception radioélectriques.

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