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公开(公告)号：WO2023048903A1
公开(公告)日：2023-03-30
申请号：PCT/US2022/041875
申请日：2022-08-29
发明人： SOUCHKOV, Vitali
摘要： Aspects of the present disclosure include circuits, systems and methods for baseline signal restoration over differential outputs. Circuits according to certain embodiments include an input module for receiving a signal from a sensor, an amplifier module, operably connected to the input module, for modifying the input signal, a baseline restoration module, operably connected to the amplifier module, for extracting a direct current component of the input signal, and an output module, operably connected to the amplifier module, for transmitting a baseline restored signal, wherein the output module comprises differential outputs. Baseline restoration systems according to certain embodiments include a baseline restoration circuit for generating a baseline restored signal on differential outputs, a downstream receiver circuit for receiving a baseline restored signal on differential inputs transmitted by the baseline restoration circuit, and cable core wires configured to connect the differential outputs of the baseline restoration circuit with the differential inputs of the downstream receiver circuit. Flow cytometry systems with baseline restoration using the subject circuits are described. Methods for baseline restoration are also provided.
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公开(公告)号：WO2023034191A1
公开(公告)日：2023-03-09
申请号：PCT/US2022/041837
申请日：2022-08-29
发明人： SHARMA, Anmol
摘要： A compensation circuit includes a tail current source (118), an error amplifier (102); a compensation resistor (114), and a voltage-to-current converter circuit (106). The tail current source (118) is configured to generate a tail current. The error amplifier (102) is coupled to the tail current source (118) and biased by the tail current. The compensation resistor (114) is coupled to the error amplifier (102). The voltage-to-current converter circuit (106) is coupled to the error amplifier (102). The compensation resistor (114) is configured to vary in resistance responsive to a change in the tail current, or the voltage-to-current converter circuit (106) is configured to vary in transconductance responsive to the change in the tail current.
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公开(公告)号：WO2022265844A1
公开(公告)日：2022-12-22
申请号：PCT/US2022/031476
申请日：2022-05-28
申请人： PSEMI CORPORATION
发明人： AYRANCI, Emre , SANNER, Miles , RUI, Mengsheng , QAYYUM, Jubaid
摘要： Methods and devices for reducing DC current consumption of a multi-stage LNA amplifier. According to one aspect, first and second amplification stages are stacked to provide a common conduction path of a DC current. The first stage includes a common- source amplifier (T1), the second stage includes a common-drain amplifier (T3). Coupling between the two stages is provided by series connection of load inductors of the respective stages and a capacitor coupled at a common node between the inductors. According to another aspect, a current splitter circuit is used to split a current to the first stage according to two separate conduction paths, one common path to the two stages, and another separate from the second stage. According to yet another aspect, the current splitter circuit includes a feedback loop that controls the splitting of the current so to maintain a constant current through the common path.
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公开(公告)号：WO2022188486A1
公开(公告)日：2022-09-15
申请号：PCT/CN2021/136085
申请日：2021-12-07
申请人： 广州慧智微电子股份有限公司
IPC分类号： H03F1/34
摘要： 本申请提供了一种可重构高集成度射频放大器和芯片；当信号源向输入放大电路发送射频信号时，控制电路根据射频信号的频率向输入放大电路发送第一控制信号，输入放大电路接收第一控制信号，并形成输入振荡回路，射频信号经输入振荡回路形成放大后的第一信号，输入放大电路将第一信号发送给输出放大电路；控制电路根据射频信号的频率，向输出放大电路输送第二控制信号，输出放大电路在第二控制信号的作用下形成了与第一信号匹配的输出振荡回路，第一信号经输出振荡回路放大形成发射信号，输出放大电路将发射信号输送给发射天线进行发射，进而提高了射频前端芯片封装的利用率。
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公开(公告)号：WO2022150817A1
公开(公告)日：2022-07-14
申请号：PCT/US2022/070047
申请日：2022-01-05
申请人： NEWRACOM, INC.
发明人： MYOUNG, Seong-sik , KIM, Ryun, Woo
摘要： A radio frequency (RF) transmitter includes an analog RF power amplifier and a digital Dynamic Error Vector Magnitude (DEVM) correction module. The DEVM correction module compensates for time-dependent variations in an instantaneous gain of the RF power amplifier. The time-dependent variations may be variations that occur during a period the RF power amplifier is turned on. The RF transmitter may further include one or more analog baseband circuits, and one or more respective baseband digital pre-distortion (DPD) modules that compensate for amplitude modulation to amplitude modulation (AM2AM) nonlinearities in the analog baseband circuits. The digital DEVM correction module and baseband DPD modules may each include respective look-up tables having values determined by respective calibration operations.
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公开(公告)号：WO2022148603A1
公开(公告)日：2022-07-14
申请号：PCT/EP2021/085347
申请日：2021-12-13
申请人： ROBERT BOSCH GMBH
发明人： MUSAZZI, Massimiliano , TANGREDI, Domenico , DAVID, Filippo , CAZZANIGA, Gabriele , SANTORO, Manuel Salvatore
摘要： Die Erfindung betrifft eine analoge Frontend-Architektur (100) für einen kapazitiven Drucksensor (109) mit einer rauscharmen Verstärkereinheit (101) zum rauscharmen Verstärken von Sensorsignalen des kapazitiven Drucksensors (109), wobei die rauscharme Verstärkereinheit (101) eine erste Integrator-Einheit (103) und eine zweite Integrator Einheit (105) zum Integrieren von in Eingangsanschlüsse (INP, INN) der rauscharmen Verstärkereinheit (101) eingespeisten Ladungen und zum Ausgeben von integrierten Ladungen an Ausgangsanschlüsse (OUT1, OU2) der rauscharmen Verstärkereinheit (101), eine Feedback- Einheit (107) und eine Startup-Einheit (108) umfasst, wobei die Feedback-Einheit (107) eingerichtet ist, integrierte Ladungen aus der Integrator-Einheit (105) erneut in die Eingangsanschlüsse (INP, INN) der rauscharmen Verstärkereinheit (101) einzuspeisen, und wobei die Startup-Einheit (108) zwischen einem ersten Schaltzustand und einem zweiten Schaltzustand verschaltbar und eingerichtet ist, im ersten Schaltzustand die in die Eingangsanschlüssen (INP, INN) eingespeisten Ladungen an der ersten Integrator-Einheit (103) vorbei, in die zweite Integrator-Einheit (105) und von der zweiten Integrator-Einheit (105) in die Feedback-Einheit (107) zu leiten, und im zweiten Schaltzustand die in die Eingangsanschlüsse (INP, INN) eingespeisten Ladungen direkt in die erste Integrator- Einheit (103) zu leiten.
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公开(公告)号：WO2022131753A1
公开(公告)日：2022-06-23
申请号：PCT/KR2021/018978
申请日：2021-12-14
申请人： 삼성전자 주식회사
摘要： 본 개시(disclosure)는 LTE(Long Term Evolution)와 같은 4G(4th generation) 통신 시스템 이후 보다 높은 데이터 전송률을 지원하기 위한 5G(5th generation) 또는 pre-5G 통신 시스템에 관련된 것이다. 본 개시의 다양한 실시 예들에 따르면, 트랜스포머(transformer)에 있어서, 제1 프라이머리 인덕터(primary inductor), 제2 프라이머리 인덕터 및 세컨더리 인덕터(secondary inductor)를 포함하고, 상기 세컨더리 인덕터는 상기 제1 프라이머리 인덕터 및 상기 제2 프라이머리 인덕터 사이에 배치되고, 상기 세컨더리 인덕터는 상기 제1 프라이머리 인덕터 및 상기 제2 프라이머리 인덕터와 이격되어 배치될 수 있다.
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公开(公告)号：WO2022073509A1
公开(公告)日：2022-04-14
申请号：PCT/CN2021/122839
申请日：2021-10-09
发明人： NGWAR, Melin
IPC分类号： H03F1/34
摘要： A wideband low power active isolator that may operate with a low voltage supply and provide improved linearity and insertion loss is described. The active isolator includes parallel connected common gate amplifier and common drain amplifier that are implemented using active transistors. A RF choke configured to suppress RF signal is coupled between input to the common gate amplifier and the ground such that the common gate amplifier also functions as a current source biasing the common drain amplifier.
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公开(公告)号：WO2022067202A1
公开(公告)日：2022-03-31
申请号：PCT/US2021/052237
申请日：2021-09-27
申请人： QUANTALRF AG , FARD, Ali , CARLSSON, Mats
发明人： FARD, Ali , CARLSSON, Mats
摘要： An amplifier circuit (100') includes an amplifier (1021) having an amplifier input and an amplifier output. A transformer disposed to provide a signal for driving a load includes a primary winding (Lout) in series with the amplifier output. A secondary winding (Ljn) of the transformer is coupled to the amplifier input where the primary winding (Lout) and the secondary winding (Ljn) are arranged such that a portion of a magnetic field generated by the primary winding ( Lout) couples to the secondary winding (L,in) so as to establish a magnetically coupled feedback loop from the amplifier output to the amplifier input. A loop gain of the magnetically coupled feedback loop is substantially independent of an impedance of the load and is defined at least in part by a coupling factor and turn-ratio of the transformer. The load may be included within an output load arrangement including a balun.
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公开(公告)号：WO2021002789A1
公开(公告)日：2021-01-07
申请号：PCT/SE2019/050985
申请日：2019-10-08
发明人： GUSTAVSSON, Ulf , WU, Yibo , ERIKSSON, Thomas
摘要： Efficient amplifier operation. In one aspect, there is a radio transceiver device. The radio transceiver device includes a distorting unit configured to receive an input signal and distort the received input signal, thereby producing a distorted input signal. The radio transceiver device further includes a limiter configured to receive the distorted input signal and produce a limited signal based on the received distorted input signal. The radio transceiver device further includes a power amplifier configured to receive the limited signal and amplify the limited signal, thereby producing an amplified limited signal.
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