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Hojong Choi, Ph.D. - Publications

Affiliations: 
2012 Electrical Engineering University of Southern California, Los Angeles, CA, United States 
Area:
Electronics and Electrical Engineering, Biomedical Engineering
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27 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2023 Choi H. Harmonic-Reduced Bias Circuit for Ultrasound Transducers. Sensors (Basel, Switzerland). 23. PMID 37177641 DOI: 10.3390/s23094438  0.342
2023 Choi H. An Inverse Class-E Power Amplifier for Ultrasound Transducer. Sensors (Basel, Switzerland). 23. PMID 37050526 DOI: 10.3390/s23073466  0.315
2022 Choi H. Pre-Matching Circuit for High-Frequency Ultrasound Transducers. Sensors (Basel, Switzerland). 22. PMID 36433458 DOI: 10.3390/s22228861  0.318
2022 Choi H. Novel dual-resistor-diode limiter circuit structures for high-voltage reliable ultrasound receiver systems. Technology and Health Care : Official Journal of the European Society For Engineering and Medicine. 30: 513-520. PMID 35124625 DOI: 10.3233/THC-228047  0.306
2021 Kim K, Choi H. A New Approach to Power Efficiency Improvement of Ultrasonic Transmitters via a Dynamic Bias Technique. Sensors (Basel, Switzerland). 21. PMID 33921082 DOI: 10.3390/s21082795  0.301
2021 Kim K, Choi H. Novel Bandwidth Expander Supported Power Amplifier for Wideband Ultrasound Transducer Devices. Sensors (Basel, Switzerland). 21. PMID 33800641 DOI: 10.3390/s21072356  0.32
2021 Kim K, Choi H. High-efficiency high-voltage class F amplifier for high-frequency wireless ultrasound systems. Plos One. 16: e0249034. PMID 33780492 DOI: 10.1371/journal.pone.0249034  0.307
2020 You K, Choi H. Inter-Stage Output Voltage Amplitude Improvement Circuit Integrated with Class-B Transmit Voltage Amplifier for Mobile Ultrasound Machines. Sensors (Basel, Switzerland). 20. PMID 33147757 DOI: 10.3390/s20216244  0.313
2020 Kim J, You K, Choi H. Post-Voltage-Boost Circuit-Supported Single-Ended Class-B Amplifier for Piezoelectric Transducer Applications. Sensors (Basel, Switzerland). 20. PMID 32967294 DOI: 10.3390/s20185412  0.303
2020 You K, Kim SH, Choi H. A Class-J Power Amplifier Implementation for Ultrasound Device Applications. Sensors (Basel, Switzerland). 20. PMID 32316339 DOI: 10.3390/s20082273  0.306
2020 You K, Choi H. Wide Bandwidth Class-S Power Amplifiers for Ultrasonic Devices. Sensors (Basel, Switzerland). 20. PMID 31947972 DOI: 10.3390/s20010290  0.317
2019 Choi H. Stacked Transistor Bias Circuit of Class-B Amplifier for Portable Ultrasound Systems. Sensors (Basel, Switzerland). 19. PMID 31795358 DOI: 10.3390/s19235252  0.301
2018 Choi H, Choe SW. Therapeutic Effect Enhancement by Dual-bias High-voltage Circuit of Transmit Amplifier for Immersion Ultrasound Transducer Applications. Sensors (Basel, Switzerland). 18. PMID 30513693 DOI: 10.3390/s18124210  0.327
2018 Jung H, Wodnicki R, Lim HG, Yoon CW, Kang B, Yoon C, Lee C, Hwang JY, Kim HH, Choi H, Chen MS, Zhou Q, Shung KK. CMOS High Voltage Analog 1-64 Multiplexer/De-Multiplexer for Integrated Ultrasound Guided Breast Needle Biopsy. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 29994523 DOI: 10.1109/Tuffc.2018.2837127  0.398
2017 Choi H, Woo PC, Yeom JY, Yoon C. Power MOSFET Linearizer of a High-Voltage Power Amplifier for High-Frequency Pulse-Echo Instrumentation. Sensors (Basel, Switzerland). 17. PMID 28375165 DOI: 10.3390/s17040764  0.305
2015 Cummins T, Yoon C, Choi H, Eliahoo P, Kim HH, Yamashita MW, Hovanessian-Larsen LJ, Lang JE, Sener SF, Vallone J, Martin SE, Kirk Shung K. High-frequency ultrasound imaging for breast cancer biopsy guidance. Journal of Medical Imaging (Bellingham, Wash.). 2: 047001. PMID 26693167 DOI: 10.1117/1.Jmi.2.4.047001  0.304
2015 Choi H, Jung H, Shung KK. Power Amplifier Linearizer for High Frequency Medical Ultrasound Applications. Journal of Medical and Biological Engineering. 35: 226-235. PMID 26622209 DOI: 10.1007/S40846-015-0026-7  0.385
2014 Choi H, Shung KK. Crossed SMPS MOSFET-based protection circuit for high frequency ultrasound transceivers and transducers. Biomedical Engineering Online. 13: 76. PMID 24924595 DOI: 10.1186/1475-925X-13-76  0.408
2014 Choi H, Shung KK. Protection circuits for very high frequency ultrasound systems. Journal of Medical Systems. 38: 34. PMID 24682684 DOI: 10.1007/S10916-014-0034-0  0.398
2014 Choi H, Kim MG, Cummins TM, Hwang JY, Shung KK. Power MOSFET-diode-based limiter for high-frequency ultrasound systems. Ultrasonic Imaging. 36: 317-30. PMID 24626565 DOI: 10.1177/0161734614524180  0.447
2014 Choi H, Yang HC, Shung KK. Bipolar-power-transistor-based limiter for high frequency ultrasound imaging systems. Ultrasonics. 54: 754-8. PMID 24199954 DOI: 10.1016/J.Ultras.2013.10.010  0.424
2014 Choi H, Shung KK. Novel power MOSFET-based expander for high frequency ultrasound systems. Ultrasonics. 54: 121-30. PMID 23835308 DOI: 10.1016/J.Ultras.2013.04.018  0.407
2013 Choi H, Jung H, Chen R, Shung KK. Harmonic distortion reduction technique of the power amplifier for very high frequency ultrasonic transducer applications Ieee International Ultrasonics Symposium, Ius. 1564-1566. DOI: 10.1109/ULTSYM.2013.0398  0.329
2013 Jung H, Choi H, Shung KK. Wideband portable power amplifier design for very high frequency ultrasonic transducer applications Ieee International Ultrasonics Symposium, Ius. 1560-1563. DOI: 10.1109/ULTSYM.2013.0397  0.305
2012 Choi H, Kim M, Shung KK. New MOSFET-based expander for high frequency ultrasound systems Ieee International Ultrasonics Symposium, Ius. 623-626. DOI: 10.1109/ULTSYM.2012.0155  0.34
2011 Choi H, Li X, Lau ST, Hu C, Zhou Q, Shung KK. Development of integrated preamplifier for high-frequency ultrasonic transducers and low-power handheld receiver. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 58: 2646-58. PMID 23443700 DOI: 10.1109/Tuffc.2011.2127  0.415
2011 Choi H, Yang HC, Lau ST, Zhou Q, Shung KK. Novel limiter using biploar power transistors for high frequency ultrasonic transducer applications Ieee International Ultrasonics Symposium, Ius. 490-493. DOI: 10.1109/ULTSYM.2011.0118  0.354
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