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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1960 1
1961 3
1963 1
1964 1
1966 2
1967 5
1968 1
1971 3
1972 3
1973 1
1974 3
1975 6
1976 6
1977 5
1978 11
1979 10
1980 6
1981 12
1982 11
1983 7
1984 7
1985 12
1986 16
1987 15
1988 8
1989 32
1990 34
1991 29
1992 38
1993 41
1994 56
1995 64
1996 70
1997 77
1998 87
1999 101
2000 98
2001 90
2002 104
2003 123
2004 151
2005 180
2006 183
2007 239
2008 255
2009 279
2010 277
2011 348
2012 346
2013 362
2014 385
2015 406
2016 414
2017 389
2018 404
2019 445
2020 441
2021 546
2022 558
2023 614
2024 337

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8,312 results

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Page 1
Intra-scan RF power amplifier drift correction.
Aghaeifar A, Bosch D, Heule R, Williams S, Ehses P, Mauconduit F, Scheffler K. Aghaeifar A, et al. Magn Reson Med. 2024 Aug;92(2):645-659. doi: 10.1002/mrm.30078. Epub 2024 Mar 12. Magn Reson Med. 2024. PMID: 38469935
PURPOSE: The drift in radiofrequency (RF) power amplifiers (RFPAs) is assessed and several contributing factors are investigated. ...
PURPOSE: The drift in radiofrequency (RF) power amplifiers (RFPAs) is assessed and several contributing factors are investigat …
A high duty-cycle, multi-channel, power amplifier for high-resolution radiofrequency encoded magnetic resonance imaging.
Purchase AR, Pałasz T, Sun H, Sharp JC, Tomanek B. Purchase AR, et al. MAGMA. 2019 Dec;32(6):679-692. doi: 10.1007/s10334-019-00763-1. Epub 2019 Jun 20. MAGMA. 2019. PMID: 31218552
OBJECTIVE: A radiofrequency (RF) power amplifier is an essential component of any magnetic resonance imaging (MRI) system. ...High spatial resolution one-dimensional TRASE was obtained with the power amplifier to demonstrate its capability. CONCLUSION: …
OBJECTIVE: A radiofrequency (RF) power amplifier is an essential component of any magnetic resonance imaging (MRI) system. ... …
Adaptable Class-D Power Amplifier based Power Modulation and Data Transfer Technique for Biomedical Systems.
Sarkar S. Sarkar S. Annu Int Conf IEEE Eng Med Biol Soc. 2021 Nov;2021:7562-7565. doi: 10.1109/EMBC46164.2021.9629530. Annu Int Conf IEEE Eng Med Biol Soc. 2021. PMID: 34892840
Class-D half and full-bridge power amplifiers (PA) finds their usefulness in wireless power transfer (WPT) blocks for a biomedical implant. This brief presents a 13.56-MHz wireless power transfer system using an adaptive PA structure and digital contro …
Class-D half and full-bridge power amplifiers (PA) finds their usefulness in wireless power transfer (WPT) blocks for a …
A Power Efficient Low-noise and High Swing CMOS Amplifier for Neural Recording Applications.
Naderi K, Shad E, Molinas M, Heidari A. Naderi K, et al. Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:4298-4301. doi: 10.1109/EMBC44109.2020.9175842. Annu Int Conf IEEE Eng Med Biol Soc. 2020. PMID: 33018946
In this paper, a power efficient, low-noise and high swing capacitively-coupled amplifier (CCA) for neural recording applications is proposed. ...The power consumption of the amplifier is 2.98 muW at supply voltage of 1.4 V. ...
In this paper, a power efficient, low-noise and high swing capacitively-coupled amplifier (CCA) for neural recording applicati …
A multi-objective optimization based doherty power amplifier and its matching network optimization method.
Sun J. Sun J. PLoS One. 2023 Dec 21;18(12):e0293371. doi: 10.1371/journal.pone.0293371. eCollection 2023. PLoS One. 2023. PMID: 38127920 Free PMC article.
In the actual design process of traditional power amplifiers, there is a problem of being cumbersome and unable to simultaneously meet low power and saturation modes. Therefore, an improved multi-objective optimization algorithm proposed by decomposition is i …
In the actual design process of traditional power amplifiers, there is a problem of being cumbersome and unable to simultaneou …
A Low-Power High Input Range PPG Readout Amplifier with a Current Buffer Input().
Mazandarani MS, Gagnon-Turcotte G, Papi R, Gosselin B. Mazandarani MS, et al. Annu Int Conf IEEE Eng Med Biol Soc. 2023 Jul;2023:1-4. doi: 10.1109/EMBC40787.2023.10340264. Annu Int Conf IEEE Eng Med Biol Soc. 2023. PMID: 38083121
This paper presents ultra-low power photoplethysmography (PPG) readout circuits. The proposed system architecture uses a current buffer between the photodiode (PD) and the transimpedance amplifier (TIA) to isolate the large parasitic capacitance of the PD leading to …
This paper presents ultra-low power photoplethysmography (PPG) readout circuits. The proposed system architecture uses a current buff …
A Low-power and Low-noise Multi-purpose Chopper Amplifier with High CMRR and PSRR.
Shad E, Molinas M, Ytterdal T. Shad E, et al. Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:3998-4001. doi: 10.1109/EMBC44109.2020.9176224. Annu Int Conf IEEE Eng Med Biol Soc. 2020. PMID: 33018876
In this article, by choosing and optimizing suitable structure in each stage, we have designed a multi-purpose low noise chopper amplifier. The proposed neural chopper amplifier with high CMRR and PSRR is suitable for EEG, LFP and AP signals while it has a low NEF. …
In this article, by choosing and optimizing suitable structure in each stage, we have designed a multi-purpose low noise chopper amplifie …
Design and fabrication of a GaN HEMT power amplifier based on hidden Markov model for wireless applications.
Soruri M, Razavi SM, Forouzanfar M, Colantonio P. Soruri M, et al. PLoS One. 2023 May 5;18(5):e0285186. doi: 10.1371/journal.pone.0285186. eCollection 2023. PLoS One. 2023. PMID: 37146032 Free PMC article.
Improvement of power amplifier's performance is the desired topic in communication systems. There are many efforts are made to provide good input and output matching, high efficiency, sufficient power gain and appropriate output power. This pape …
Improvement of power amplifier's performance is the desired topic in communication systems. There are many efforts are …
Comparison of Feature Selection Techniques for Power Amplifier Behavioral Modeling and Digital Predistortion Linearization.
Barry A, Li W, Becerra JA, Gilabert PL. Barry A, et al. Sensors (Basel). 2021 Aug 27;21(17):5772. doi: 10.3390/s21175772. Sensors (Basel). 2021. PMID: 34502663 Free PMC article.
The power amplifier (PA) is the most critical subsystem in terms of linearity and power efficiency. Digital predistortion (DPD) is commonly used to mitigate nonlinearities while the PA operates at levels close to saturation, where the device presents its high …
The power amplifier (PA) is the most critical subsystem in terms of linearity and power efficiency. Digital predistorti …
Two-Way Communication Digital Power Controllers for Wireless Retinal Prosthesis Systems.
Zawawi RBA, Kim J. Zawawi RBA, et al. Sensors (Basel). 2022 Apr 13;22(8):2970. doi: 10.3390/s22082970. Sensors (Basel). 2022. PMID: 35458955 Free PMC article.
Power management plays an important role in reducing the power consumption and avoiding malfunctions in implantable medical devices. ...Three controllers-a forward and back telemetry control unit, a power control unit, and a preamble control unit-operated sim …
Power management plays an important role in reducing the power consumption and avoiding malfunctions in implantable medical de …
8,312 results