reference amplifier【电子】 - PMC

Hui Tang, Changjin Yang, Li Qin, Lei Liang, Yuxin Lei, Peng Jia, Yongyi Chen, Yubing Wang, Yue Song, Cheng Qiu, Chuantao Zheng, Xin Li, Dabing Li, Lijun Wang

Sensors (Basel) 2023 Sep; 23(17): 7326. Published online 2023 Aug 22. doi: 10.3390/s23177326

PMCID:: PMC10490429

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Implantable neurotechnologies: a review of integrated circuit neural amplifiers

Kian Ann Ng, Elliot Greenwald, Yong Ping Xu, Nitish V. Thakor

Med Biol Eng Comput. Author manuscript; available in PMC 2016 Jul 22.

Published in final edited form as: Med Biol Eng Comput. 2016 Jan; 54(1): 45–62. Published online 2016 Jan 22. doi: 10.1007/s11517-015-1431-3

PMCID:: PMC4958006

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An Inverse Class-E Power Amplifier for Ultrasound Transducer

Hojong Choi

Sensors (Basel) 2023 Apr; 23(7): 3466. Published online 2023 Mar 26. doi: 10.3390/s23073466

PMCID:: PMC10098776

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Automatic Frequency Controller for Power Amplifiers Used in Bio-Implanted Applications: Issues and Challenges

Mahammad A. Hannan, Hussein A. Hussein, Saad Mutashar, Salina A. Samad, Aini Hussain

Sensors (Basel) 2014 Dec; 14(12): 23843–23870. Published online 2014 Dec 11. doi: 10.3390/s141223843

PMCID:: PMC4299090

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Excel Methods to Design and Validate in Microelectronics (Complementary Metal–Oxide–Semiconductor, CMOS) for Biomedical Instrumentation Application

Graciano Dieck-Assad, José Manuel Rodríguez-Delgado, Omar Israel González Peña

Sensors (Basel) 2021 Nov; 21(22): 7486. Published online 2021 Nov 11. doi: 10.3390/s21227486

PMCID:: PMC8618810

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Complementary integration of organic electrochemical transistors for front-end amplifier circuits of flexible neural implants

Ilke Uguz, David Ohayon, Sinan Yilmaz, Sophie Griggs, Rajendar Sheelamanthula, Jason D. Fabbri, Iain McCulloch, Sahika Inal, Kenneth L. Shepard

Sci Adv. 2024 Mar 22; 10(12): eadi9710. Published online 2024 Mar 22. doi: 10.1126/sciadv.adi9710

PMCID:: PMC10959418

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OpBox: Open Source Tools for Simultaneous EEG and EMG Acquisition from Multiple Subjects

Eyal Y. Kimchi, Brian F. Coughlin, Benjamin E. Shanahan, Giovanni Piantoni, John Pezaris, Sydney S. Cash

eNeuro. 2020 Sep-Oct; 7(5): ENEURO.0212-20.2020. Prepublished online 2020 Oct 15. Published online 2020 Oct 27. doi: 10.1523/ENEURO.0212-20.2020

PMCID:: PMC7598913

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A State-of-the-Art Review on CMOS Radio Frequency Power Amplifiers for Wireless Communication Systems

Sofiyah Sal Hamid, Selvakumar Mariappan, Jagadheswaran Rajendran, Arvind Singh Rawat, Nuha A. Rhaffor, Narendra Kumar, Arokia Nathan, Binboga S. Yarman

Micromachines (Basel) 2023 Aug; 14(8): 1551. Published online 2023 Aug 1. doi: 10.3390/mi14081551

PMCID:: PMC10456352

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Harmonic-Reduced Bias Circuit for Ultrasound Transducers

Hojong Choi

Sensors (Basel) 2023 May; 23(9): 4438. Published online 2023 Apr 30. doi: 10.3390/s23094438

PMCID:: PMC10181787

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Optically controlled switch-mode current-source amplifiers for on-coil implementation in high field parallel transmission

Natalia Gudino, Qi Duan, Jacco A de Zwart, Joe Murphy-Boesch, Stephen J Dodd, Hellmut Merkle, Peter van Gelderen, Jeff H Duyn

Magn Reson Med. Author manuscript; available in PMC 2017 Jul 1.

Published in final edited form as: Magn Reson Med. 2016 Jul; 76(1): 340–349. Published online 2015 Aug 10. doi: 10.1002/mrm.25857

PMCID:: PMC4749483

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A Wideband Noise and Harmonic Distortion Canceling Low-Noise Amplifier for High-Frequency Ultrasound Transducers

Yuxuan Tang, Yulang Feng, He Hu, Cheng Fang, Hao Deng, Runxi Zhang, Jun Zou, Jinghong Chen

Sensors (Basel) 2021 Dec; 21(24): 8476. Published online 2021 Dec 19. doi: 10.3390/s21248476

PMCID:: PMC8703952

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The Design of a Low Noise, Multi-Channel Recording System for Use in Implanted Peripheral Nerve Interfaces

Shamin Sadrafshari, Benjamin Metcalfe, Nick Donaldson, Nicolas Granger, Jon Prager, John Taylor

Sensors (Basel) 2022 May; 22(9): 3450. Published online 2022 Apr 30. doi: 10.3390/s22093450

PMCID:: PMC9099588

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CMOS Ultra-Low Power Brain Signal Acquisition Front-Ends: Design and Human Testing

Alireza Karimi-Bidhendi, Omid Malekzadeh-Arasteh, Mao-Cheng Lee, Colin M. McCrimmon, Po T. Wang, Akshay Mahajan, Charles Y. Liu, Zoran Nenadic, An H. Do, Payam Heydari

IEEE Trans Biomed Circuits Syst. Author manuscript; available in PMC 2019 May 9.

Published in final edited form as: IEEE Trans Biomed Circuits Syst. 2017 Oct; 11(5): 1111–1122. Published online 2017 Aug 1. doi: 10.1109/TBCAS.2017.2723607

PMCID:: PMC6508959

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Post-Voltage-Boost Circuit-Supported Single-Ended Class-B Amplifier for Piezoelectric Transducer Applications

Jungsuk Kim, Kiheum You, Hojong Choi

Sensors (Basel) 2020 Sep; 20(18): 5412. Published online 2020 Sep 21. doi: 10.3390/s20185412

PMCID:: PMC7571019

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Optically Controlled On-Coil Amplifier with RF Monitoring Feedback

Natalia Gudino, Jacco A. de Zwart, Qi Duan, Stephen J. Dodd, Joe Murphy-Boesch, Peter van Gelderen, Jeff H. Duyn

Magn Reson Med. Author manuscript; available in PMC 2019 May 1.

Published in final edited form as: Magn Reson Med. 2018 May; 79(5): 2833–2841. Published online 2017 Sep 14. doi: 10.1002/mrm.26916

PMCID:: PMC5839114

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Novel Bandwidth Expander Supported Power Amplifier for Wideband Ultrasound Transducer Devices

Kyeongjin Kim, Hojong Choi

Sensors (Basel) 2021 Apr; 21(7): 2356. Published online 2021 Mar 28. doi: 10.3390/s21072356

PMCID:: PMC8037455

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Amplification and Manipulation of Nonlinear Electromagnetic Waves and Enhanced Nonreciprocity using Transmissive Space‐Time‐Coding Metasurface

Xin Wang, Jiaqi Han, Shuncheng Tian, Dexiao Xia, Long Li, Tie Jun Cui

Adv Sci (Weinh) 2022 Apr; 9(11): 2105960. Published online 2022 Feb 10. doi: 10.1002/advs.202105960

PMCID:: PMC9008792

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PMC Images search for reference amplifier【电子】

Figure 12

Schematic of the high-temperature digital lock-in amplifier test setup. The reference frequency of the digital lock-in amplifier was provided by an internal or external reference depending on the working method. The external reference provided by the signal generator (consistent with the frequency of the output signal) was used in the test process. The internal reference was controlled by the MCU, which could generate a clock signal with the requested frequency to act as the internal reference.

A Digital Lock-In Amplifier for Use at Temperatures of up to 200 °C

Sensors (Basel). 2016 Nov;16(11):1899.
Fig 1Schematic and construction of low-cost portable amplifier.

a Schematic of the electrical circuit of the amplifier. b Image of the soldered circuit board inside the amplifier box with labeled circuit board, On/Off switch, LED, R_P connectors (to device) and DB9 connector. The amplifier is powered by two 9 volts DC batteries. c Shows two lab amplifiers (L1 and L10 series), enclosed in an aluminum box with labels showing individual specifications. The micropore device on a glass slide and a 1 INR coin is also shown for size reference. d I-V characteristics of electrical resistors measured with our amplifiers (L1 and L10 (inset), with ± 10 volts V_CC) series where A & B suffix are 2 copies of the same amplifier design) is compared with commercial amplifiers (D and AM series). Online version in colour.

Customized low-cost high-throughput amplifier for electro-fluidic detection of cell volume changes in point-of-care applications

PLoS One. 2022;17(4):e0267207.
Fig. 11

Amplitude and phase distortion of a VSS pulse: comparison between reference signal and measured signal obtained with the power amplifier driven directly (left) and with the same amplifier after addition of the control loop (right). The first two upper panels show real and imaginary parts of the signal; the bottom two, amplitude and phase errors.

Frequency-Offset Cartesian Feedback for MRI Power Amplifier Linearization

IEEE Trans Med Imaging. ;30(2):512-522.
Figure 2.

Design of the unipolar amplifier. The reference electrode is referenced to its own low-pass filtered signal. The low-pass filtered signal is further used for the other three electrodes. The amplifier consists of two amplifier stages and two filters.^,

Real-Time Ventricular Volume Measured Using the Intracardiac Electromyogram

ASAIO J. 2021 Dec;67(12):1312-1320.