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Tesis sobre el tema "Ultrasonic analog front end"

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Publicado: 10 de marzo de 2023

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1

SAUTTO, MARCO. "ANALOG FRONT-END CIRCUITS FOR HIGHLY INTEGRATED ULTRASOUND IMAGING SYSTEMS." Doctoral thesis, Università degli studi di Pavia, 2017. http://hdl.handle.net/11571/1203280.

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Ultrasound imaging is a well-established medical diagnostic technique. Compared with other imaging modalities, such as for example X-ray, ultrasound is harmless to the patient and less expensive while providing real-time imaging capability with adequate resolution for most applications. Piezoelectric materials have dominated the ultrasound transducers technology for a long time but, thanks to the intense research activity in recent years, capacitive micromachined ultrasonic transducers (CMUT) are emerging as a competitive alternative for next generation imaging systems. The objective of the th
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2

Behnamfar, Parisa. "On the design of high-voltage analog front-end circuits for capacitive micromachined ultrasonic transducers (CMUT)." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50469.

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In ultrasound imaging, capacitive micromachined ultrasonic transducer (CMUT) technology has become a promising alternative to conventional piezoelectric- based technology. This work focuses on various aspects of CMUT-based imaging technologies. In the context of CMUT design and integration with associated electronics, flexible and reliable CMUT models that can be seamlessly simulated with the read-out circuits and provide insights in the system-level performance are of great importance. This work proposes a generic Verilog-AMS model for CMUT sensors that takes into account the non-linearities,
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3

Qureshi, Muhammad Shakeel. "Integrated front-end analog circuits for mems sensors in ultrasound imaging and optical grating based microphone." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29613.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Hasler, Paul; Committee Co-Chair: Degertekin, Levent; Committee Member: Anderson, David; Committee Member: Ayazi, Farrokh; Committee Member: Brand, Oliver; Committee Member: Hesketh, Peter. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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4

Lebron, Agustin. "An analog front-end for powerline communications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ63020.pdf.

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5

Theie, Øyvind Bjørkøy. "A Novel Analog Front-End For ECG Acquisition." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19547.

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A complete analog front-end for portable ECG systems in 65nm technology was modeled and simulated using Cadence Virtuoso. All the required components for the AFE was incorporated into the continuous-time loop filter of a 10-bit ADC. By varying the effective transconductance of the input OTA, preamplification of the input signal was achieved. The required filtering is achieved through the ADC&apos;s own loop filter and through digital post-filtering. The ADC meets the IEC60601-2-47 standard. This simple, minimal and digitally assisted converter achieve some attractive features by dynamically ad
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6

Tavakoli, Dastjerdi Maziar 1976. "An analog VLSI front end for pulse oximetry." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36184.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>Includes bibliographical references (p. 210-216).<br>Pulse oximetry is a fast, noninvasive, easy-to-use, and continuous method for monitoring the oxygen saturation of a patient's blood. In modem medical practice, blood oxygen level is considered one of the important vital signs of the body. The pulse oximeter system consists of an optoelectronic sensor that is normally placed on the subject's finger and a signal processing unit that computes the oxygen saturation. It uses red
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7

Uyar, Oğuzhan. "Front-end circuits for a photonic analog-to-digital converter." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68510.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 79-80).<br>As the resolution of electrical ADCs gets limited at higher sampling rates due to sampling clock jitter, low-jitter mode-lock laser based photonic ADCs are starting to gain more attention. As well as low-jitter and high-linearity operation at very high speeds, photonic ADCs provide the opportunity to de-multiplex electrical signals to enable the parallel sampling of signals which increase
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8

Wang, Jiazhen. "Design of an Analog Front-end for Ambulatory Biopotential Measurement Systems." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37216.

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A critical and important part of the medical diagnosis is the montioring of the biopotential signals. Patients are always connected to a bulky and mains-powered instrument. This not only restricts the mobility of the patients but also bring discomfort to them. Meanwhile, the measureing time can not last long thus affecting the effects of the diagnosis. Therefore, there is a high demand for low-power and small size factor ambulatory biopotential measurement systems. In addtion, the system can be configured for different biopotential applications.The ultimate goal is to implement a system that i
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9

Razzaghpour, Milad. "Design and Optimization of an Analog Front-End for Biomedical Applications." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-90236.

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The state-of-the-art analog front-end of implantable biosensors is the class of current-mirror-based circuits. Despite their superior noise performance, power consumption and area, they suffer from systematic and random errors causing offset, gain and linearity error in reading out the sensor data. In the first part of this thesis, a new analog front-end is proposed to eliminate the systematic error. The proposed topology is able to accurately copy the sensor current which will be converted into the proportional voltage for further processing. Additionally, a theoretical discussion regarding t
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10

Shah, Julin Mukeshkumar. "Compressive Sensing Analog Front End Design in 180 nm CMOS Technology." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1440381988.

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11

Malachowska, Julia, and Miko Nore. "Emulation of Analog Front-End isoSPI communication for Battery Management Systems." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297789.

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This study aims to investigate how an emulator could be developed as a testing tool for Battery Management Systems (BMS) by emulating the Analog Front­end (AFE) circuit communicating with a control unit for monitoring of Lithium­Ion Batteries. All of the research was conducted in the context of the company Northvolt. By analysing data collected through a questionnaire, it was evident that an emulator testing tool could potentially make the BMS development process significantly more efficient. A demonstrator was developed as a part of the study. It fulfilled almost all of the requirements initi
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12

MALACHOWSKA, JULIA, and MIKO NORE. "Emulation of Analog Front-End isoSPI communication for Battery Management Systems." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299264.

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This study aims to investigate how an emulator could be developed as a testing tool for Battery Management Systems (BMS) by emulating the Analog Front-end (AFE) circuitcommunicating with a control unit for monitoring of Lithium-Ion Batteries. All of the research was conducted in the context of the company Northvolt. By analysing data collected through a questionnaire, it was evident that an emulator testing tool could potentially make the BMS development process significantly more efficient. A demonstrator was developed as a part of the study. It fulfilled almost all of the requirements initia
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13

Leung, Matthew Chung-Hin. "CMOS RF SOC Transmitter Front-End, Power Management and Digital Analog Interface." Thesis, Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24664.

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With the growing trend of wireless electronics, frequency spectrum is crowded with different applications. High data transfer rate solutions that operate in license-exempt frequency spectrum range are sought. The most promising candidate is the 60 GHz multi-giga bit transfer rate millimeter wave circuit. In order to provide a cost-effective solution, circuits designed in CMOS are implemented in a single SOC. In this work, a modeling technique created in Cadence shows an error of less than 3dB in magnitude and 5 degree in phase for a single transistor. Additionally, less than 3dB error of
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14

Amin, Farooq ul. "On the Design of an Analog Front-End for an X-Ray Detector." Thesis, Linköping University, Department of Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-21395.

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<p>Rapid development in CMOS technology has resulted in its suitability for the implementation of readout front-end systems in terms of high integration density, and low power consumption yet at the same time posing many challenges for analog circuits design like readout front-end. One of the significant challenges is the low noise design for high speed front-end systems, while at the same time minimizing the power consumption as much as possible.</p><p>A high speed, low noise, low power, and programmable readout front-end system is designed and implemented for an X-ray detector in CMOS 0.18 m
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15

Graham, David W. "A Biologically Inspired Front End for Audio Signal Processing Using Programmable Analog Circuitry." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11549.

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This research focuses on biologically inspired audio signal processing using programmable analog circuitry. This research is inspired by the biology of the human cochlea since biology far outperforms any engineered system at converting audio signals into meaningful electrical signals. The human cochlea efficiently decomposes any sound into the respective frequency components by harnessing the resonance nature of the basilar membrane, essentially forming a bank of bandpass filters. In a similar fashion, this work revolves around developing a filter bank composed of continuous-time, low-power
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16

Wilson, James Edward. "Design of a low-power, multi-resolution digital to analog converter for a W-CDMA analog front end." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1342452928.

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17

PIPINO, ALESSANDRA. "Design of Analog Circuits in 28nm CMOS Technology for Physics Applications." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2017. http://hdl.handle.net/10281/158126.

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Il trend esponenziale delle tecnologie CMOS previsto dalla legge di Moore è stato ampiamento dimostrato nel corso degli ultimi tre decenni. Si è osservato uno scaling costante, caratterizzato da dispositivi sempre più piccoli, per soddisfare le esigenze delle applicazioni digitali in termini di velocità, complessità, densità circuitale e basso consumo di potenza. Ogni nodo tecnologico è rappresentato dalla minima lunghezza ottenibile, che corrisponde alla lunghezza del canale del più piccolo transistor che si può integrare. Con l'arrivo delle tecnologie al di sotto dei 100nm, le performance d
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18

Björkqvist, Oskar. "Analog Front End Development for the Large Hadron Collider Interlock Beam Position Monitor Upgrade." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253207.

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The interlock Beam Position Monitor (BPM) system in the Large Hadron Collider(LHC) is responsible for monitoring the particle beam position at the point of thebeam dump kicker magnets and is part of the machine protection system. Thecurrent interlock BPM system has some limitations and because of this, an upgradeproject has been initiated. This master thesis describes the development of theanalog front end electronics of this system, consisting mainly of two parts: A delayline based microwave filter and a high isolation and highly balanced power combinercircuit.The filter has been validated wi
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19

Giannelli, Pietro. "A Testbench System for Structural Health Monitoring with Guided-Wave Ultrasound." Doctoral thesis, 2018. http://hdl.handle.net/2158/1125295.

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This dissertation covers the design of the transducers and electronics of a structural health monitoring (SHM) testbench system targeted at plate-like structures. The health inspection principle behind the system is the transmission and reception of guided-wave ultrasound along the structure under test, using piezoelectric transducers made of poled polyvinylidene fluoride (PVDF) film. The aim of this work is the creation of a system with custom electronics that can serve as a versatile testbench for the research activities in the field of SHM of complex material, such as carbon and glass-fibe
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20

Ou, Wei-Yang, and 歐威揚. "Analog Front End for Cable Modem." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/59192764917990177712.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>87<br>In this thesis, the design and implementation of analog front end for digital cable modem are introduced. A quantizer is utilized in the automatic gain control (AGC) to regulate its loop bandwidth, which can accomplish fast acquisition and low gain fluctuation simultaneously. Meanwhile, to achieve robustness against various variations and good programmability, mixed mode circuit architecture is adopted. Except for the inevitable analog circuits such as variable gain amplifier (VGA), receive bandpass filter (Rx BPF) and gain/buffer (G/B), the rest parts are rea
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21

Ho, Hao-Chang, and 何浩彰. "ANALOG FRONT-END DESIGN FOR USB2.0 RECEIVER." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/60419153345556245395.

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碩士<br>大同大學<br>電機工程學系(所)<br>94<br>ABSTRACT This thesis is to discuss the high-speed transmission technique under the USB2.0 (Universal Serial Bus Revision 2.0) specification compliant, and to implement the circuit design of USB2.0 physical layer analog front-end receiver by using the process and SPICE models of TSMC 0.18um CMOS 1P5M. In the content, several frequently used circuit structures and techniques are introduced for high-speed transmission. In addition, a physical layer analog front-end receiver circuit design for USB2.0 that is backward compatible with USB1.1 is proposed. The design
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22

Hsieh, Wei-Che, and 謝維哲. "Analog Front-End Circuit for Biomedical System." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/04069329228935694023.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>103<br>According to statistics of the Ministry of Health and Welfare, chronic disease is one of the leading causes of death, especially in the elderly population. Because of the aging society and the threat of chronic disease, there is a high demand for personal telehealth systems. The research and application in biomedical integrated circuit become a mainstream. Due to the development of semiconductor technology and the integrated circuit design, the analog and digital circuit can be combined into a same chip. A bio-signal sensing and monitoring SoC can be realized
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23

Lin, Wei-Ming, and 林韋名. "Analog Front End for CMOS RF Transmitter." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/26706916816453845552.

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碩士<br>輔仁大學<br>電子工程學系<br>91<br>This thesis described a RF transmitter used in wireless communication system. The transmitter has three main parts, included phase-locked loop, pulsewidth control loop and transmitter front-end circuits. It’s operating frequency range is 315~916MHz. The modulation are ASK and Audio (AM) mode. The signal output power is 100mW. 　The architecture of phase-locked loop is integer and divided by 32 type. It was used to provide the center frequency of the transmitter. Due to use source follower as the internal power supply of the voltage-controlled oscillator
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24

Chung-Yuan, Chen. "Analog Front-end Circuits for DVD-ROM Application." 2003. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0009-0112200611295788.

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25

Yen-Yu, Lin, and 林彥宇. "Analog Front End for ADSL-1 CAP System." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/63900233281095776053.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>87<br>In this thesis, we propose an Automatic Gain Control (AGC) system using Barker code as its training sequence for Asynchronous Digital Subscriber Loop (ADSL). The advantage of this architecture is that Barker code has the characteristic of large Peak-Side-lobe Ratio (PSR). We can easily get the information of the amplitude and the channel delay. The amplitude information is useful for the convergence of the AGC system, and the channel delay information can be provided to the equalizer. We adopt UMC 0.5um DPDM 3v CMOS technology to design and layout o
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26

Huang, Yu-Ting, and 黃瑜婷. "A multi-function biomedical analog front end IC." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/93407066082979072037.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>97<br>With the advancement and maturation of semiconductor technology, the digital and analog circuit has been integrated on the same chip. In recent years, because of the demand on biomedicine, CMOS bio-sensors have already realized successfully with CMOS technique, achieving miniature, low noise, low power and low cost biomedical systems. In addition, analog front-end circuit with the function of signal arrangement is a critical component in the biomedical system. In this thesis, the main three pieces of circuit are instrumentation amplifier (IA), second-order
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27

Chang, Long-Xi, and 張用璽. "Analog Front-End Circuits Design for IF Receiver." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/00982906530351560807.

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碩士<br>國立中央大學<br>電機工程研究所<br>91<br>The project of this thesis is analog front-end circuits design for IF receiver. It concludes two components — an automatic gain control system design and an analog-to-digital system design. In the automatic gain control system design, this system is a feedback closed loop control system and its gain can be controlled by this feedback closed loop system. Because of this gain control mechanism, the output of the system has constant magnitude with different input magnitude swings, and the output signal will have lower distortion. When input signal is 100M
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28

Chang, Yu-Jen, and 張毓仁. "10Mbps PPM IR Communication System Analog Front-End." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/69460224552023055539.

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碩士<br>國立中央大學<br>電機工程研究所<br>87<br>In this thesis, the 10Mbps PPM infrared (IR) communication system is introduced, and implemented the analog front-end for the IR communication. The analog front-end consists of a magnitude control circuit and a 4th-order Bessel bandpass filter. Various configurations of the magnitude control mechanisms are discussed and compared on view of the IR communication system. The proposed dual loop AGC provides a wide loop bandwidth at the initial acquisition-state and a narrow loop bandwidth at the steady-state. S
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29

Chen, Chung-Yuan, and 陳鐘沅. "Analog Front-end Circuits for DVD-ROM Application." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/81197461743105780125.

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碩士<br>元智大學<br>電機工程學系<br>91<br>In the thesis, analog front end circuits for high speed DVD-ROM application are proposed. It can be utilized in sixteen-folds or high speed DVD-ROM. The performance of the circuit can meet the rapid demand in the future (more than 16X). In the past years, the DVD system is almost realized by BiCMOS technology. In order to reduce its cost and increase density of transistors on the same chip, CMOS technology is chosen. The compensation technology proposed in transimpedance amplifier can broaden its bandwidth without degrading its gain. And this method can
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30

Chuang, Kai-Hsiang, and 莊凱翔. "Analog Front-End Circuit Design for 10GBASE-T Ethernet." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/65527640507815318659.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>95<br>Since the Internet expands rapidly, the data rate of the local area network reaches 10 Gb/s. The optical systems with the data rate of 10 Gb/s have been proposed and implemented a few years ago. However, for the cost point of view, it is desired to implement the system with data rate of 10 Gb/s on the copper twisted-pair. In this thesis, an analog front-end circuit suitable for 10 GBASE-T Ethernet system has been designed and implemented using CMOS technology. The analog front-end circuit includes a baseline wander (BLW) cancellation loop, a programmable gain
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31

Kuo, Han-Jen, and 郭瀚仁. "Fabrication of RFID Analog Front-End and Antenna Design." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/87414767769543381841.

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碩士<br>樹德科技大學<br>電腦與通訊研究所<br>94<br>RFID System is one kind of Radio Frequency techonolog which can be used in identification system. It comprises RFID Tag and RFID Reader, which comunicate with each other by electromagnetic coupling. The advantages of RFID are long distance transfering, light, fast speed, and penetration ability. A complete RFID system has three basic components; RFID Tag, RFID Reader, and Antenna. RFID Tag and RFID Reader can be separated into RF Analog Front-End circuit and Digital Format Function circuit. About the antenna designs, there are diffent frequencies with differen
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32

"A CMOS Analog Front-End IC for Gas Sensors." Doctoral diss., 2011. http://hdl.handle.net/2286/R.I.8911.

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abstract: This thesis presents a gas sensor readout IC for amperometric and conductometric electrochemical sensors. The Analog Front-End (AFE) readout circuit enables tracking long term exposure to hazardous gas fumes in diesel and gasoline equipments, which may be correlated to diseases. Thus, the detection and discrimination of gases using microelectronic gas sensor system is required. This thesis describes the research, development, implementation and test of a small and portable based prototype platform for chemical gas sensors to enable a low-power and low noise gas detection system. The
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33

Chuang, Kai-Hsiang. "Analog Front-End Circuit Design for 10GBASE-T Ethernet." 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2307200720031100.

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34

CHANG, HAO-SHUN, and 章豪順. "Automatic Gain Control for VDSL Receiver Analog Front End." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/29298378404664587316.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>90<br>The broadband access technologies, such as various kinds of digital subscriber loops (xDSL) have been implemented with a mixture of IC technologies. They provide robust transport of data on twisted pair without interfering with classical telephone service. However, to overcome high attenuation and large echo of the copper wire, the analog front end circuit (AFE) should possess low noise enhancement, low signal distortion, accurate channel filtering and high dynamic range characteristics. This thesis presents the design and implementation of a low-vo
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35

Su, Wen-Hong, and 蘇文鴻. "Analog Front-End Circuit Design for Digital Image Processing." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/79283557582856335583.

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碩士<br>輔仁大學<br>電子工程學系<br>98<br>With the proliferation of digital cameras and multi-functional printers, document scanning has become much more easily. Image processor IC’s have been popular consumer electronic products. The core image processor IC’s can be classified two catalogs: one is based on CMOS technologies and the other is with CCD architecture. The two factors, price and resolution actually determine the applications of the two image processor IC’s. The CCD based image IC’s have the advantages of high S/N and large dynamic range, which therefore are employed in the products of high re
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36

Kao, Min-Sheng, and 高旻聖. "CMOS Analog Front-end Transceiver IC for Wireline Communications." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/68305604504950596777.

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博士<br>國立清華大學<br>通訊工程研究所<br>99<br>This study proposes several circuit design techniques to achieve high performance CMOS transceiver chipset for wire-line communication. The circuit concepts are demonstrated by a 20-Gb/s CMOS 0.13-μm laser/modulator driver design and a 10-Gb/s CMOS 0.18-μm limiting amplifier design. The performance evaluation are as good as the advanced expensive III-V compound technology and the fabricated CMOS circuits are suitable for further integration with SERDES, CDR, and CODEC ICs for wire-line communication due to the small die size and low power consumption. The propo
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37

Huang, Ming-Yang, and 黃名揚. "An Analog Front-end Circuit For Biomedical SignalAcquisition Systems." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/19257404964821234072.

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碩士<br>國立中正大學<br>電機工程研究所<br>100<br>The ones of the top ten causes of the death in the world are including Ischaemic heart disease as well as Stroke and other cerebrovascular disease. However, the diagnosis of disease usually requires long time to monitor the related bio-signals, eg. EEG or ECG. A wireless biomedical signal acquisition systems with low power consumption and high resolution is necessary for monitoring effectively and carrying conveniently. In this thesis, an analog front end circuit for wireless biomedical signal acquisition systems is implemented. Different from the traditio
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38

Chen, Yu-Junk, and 陳鈺融. "A New Analog Front-End Circuit for Biomedical Applications." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/g69wqe.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>96<br>This thesis is focused on investigating the low power consumption in biomedical front-end circuit; besides, performance of the circuit has been raise. The development of low power and low noise design has become the focus of biomedical applications. The performance of biomedical recording system depends on the instrumentation amplifier, such as Electrocardiogram or Electroencephalogram recording. It is to amplify very small voltage signal to large voltage amplitudes; nonetheless, the system is sensitively associated with noise and common-mode voltage because
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Tahmoureszadeh, Tina. "Analog Front-end Design for 2x Blind ADC-based Receivers." Thesis, 2010. http://hdl.handle.net/1807/29988.

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This thesis presents the design, implementation, and fabrication of an analog front-end (AFE) targeting 2x blind ADC-based receivers. The front-end consists of a combination of an anti-aliasing filter (AAF) and a 2-tap feed-forward equalizer (FFE) (AAF/FFE), the required clock generation circuitry (Ck Gen), 4 time-interleaved 4-b ADCs, and DeMUX. The contributions of this design are the AAF/FFE and the Ck Gen. The overall front-end optimizes the channel/filter characteristics for data-rates of 2-10 Gb/s. The bandwidth of the AAF is scalable with the data-rate and the analog 2-tap feed-forward
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Chen, Yu-chih, and 陳昱誌. "Analog Front-end Integrated Circuit Design for Bio Signal Processing." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/67072861512365413562.

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碩士<br>國立中正大學<br>電機工程所<br>94<br>This thesis has two parts including the design of microstimulator for neuromuscular stimulation and the analog front-end circuit for hearing aid system. The microstimulator includes three circuits: Regulator, Controller, Microstimulator. And the hearing aid frond-end system includes two circuits: Preamplifier, lowpass filter. In the part one, the necessary power and data of microstimulator utilize the RF coupling to be transmit to the inside circuit. By way of supply voltage to internal circuit, voltage regulator the DC signal can be obtained to provide. In addit
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Chen, Yi-Huei, and 陳宜惠. "2V CMOS Analog Front-End Circuit Designs for Pager Receiver." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/27206890014835830823.

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碩士<br>國立中央大學<br>電機工程學系<br>86<br>With the progress of digital signal processing, many complicate functions can be realized by modern VLSI technology. However, for analog signal processing, many existing solutions are still not cost and power effective. The main objective of thisthesis is to develop the low-voltage low-power circuit design techniques for analog front-end application. The proposed circuits are based on the heterodyne receiver architecture. RF/IF analog-front-end functi
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42

Hsueh, Jen-Chieh, and 薛人傑. "A Three-channel True-time delay Beamforming Analog Front-end." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/93274771829790793271.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>102<br>Beamforming is a signal processing technique used in sensor arrays. After specific time delay, signal will be constructive interference or destructive interference. Beamforming used in many applications, ex: biomedical ultrasound imaging system, communication transmit system, sonar detection system, etc. By using 0.18-μm CMOS process, two circuits are implemented in this thesis. The first chapter introduces the fundamentals of a true-time delay beamforming system. Chapter 2 illustrates the basics and challenges in true-time delay beamforming design and the li
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43

Li, Chien-Ting, and 黎建廷. "Design of CMOS Image Sensor Digital Analog-Front-End Circuits." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/85646041997919655199.

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碩士<br>中華科技大學<br>電子工程研究所在職專班<br>101<br>This thesis presents design of a 10-bit CMOS image sensor analog front-end (AFE) circuit. The front-end circuit consists of a photodiode array of 256, a three-time sening amplification circuit for each photodiode, and a 10-bit pipelined analog-to-digital converter (ADC) as readout circuit. Among the CMOS image sensor architectures, the active type is the most popular compared to the passive one. The active CMOS image sensors has higher sensitivity, lower power consumption, and is highly integrated. In addition, use of the pipelined ADC can achieve moder
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Tung, Cheng-Wei, and 董鈞瑋. "Analog Front-End Circuit Design for the ECG Acquisition System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/73791390117504859206.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>92<br>Abstract A monolithic analog front-end circuit for ECG acquisition system is described in this thesis. The system includes the instrumentation, which is based on the current balancing technique that ensures this type of circuit to achieve high immunity to common mode signals as first stage, gain amplifier stage and the switched capacitor low pass filter. In order to obtain good performance of the circuit, the non-ideal effect like offset voltage has been analyzed in this thesis. The circuit was implemented in TSMC 0.35μm , 2p4m mixed-signal CMOS technology an
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45

Mo, Chu-Yuan, and 莫居緣. "Design of Analog Front-End Circuit for ECG Measurement System." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/78181569204289054667.

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碩士<br>逢甲大學<br>電子工程學系<br>103<br>The present study proposes an analog front-end (AFE) circuit used in electrocardiogram (ECG) monitoring devices to achieve low-power common-mode rejection ratio (CMRR). The overall AFE circuit comprises an instrumentation amplifier (IA) to amplify the received ECG signals in the first stage, a fourth-order high-pass filter (HPF) to exclude ECG signals below 2 mHz in the second stage, a finite-gain low-pass filter (LPF) to provide a 40 dB gain and filter out signals over 300 Hz in the third stage, and a notch filter to block the 60 Hz noise interferences generated
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Chen, Ming-Huai, and 陳明輝. "Design of Analog Front-End Circuit for EEG Measurement System." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/11788057126613548876.

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碩士<br>逢甲大學<br>電子工程學系<br>103<br>ABSTRACT This paper presents an analog front-end (AFE) circuitry of an electroencephalogram (EEG) measurement system with a high common-mode rejection ratio (CMRR). The whole AFE circuit includes a first-stage AC coupling circuit to filter out low frequency noise, a second-stage instrumentation amplifier with a high CMRR of three op amp to provide 53.9 dB differential-mode gain and 128.2 dB CMRR, a third-stage notch filter to filter out 60 Hz mains noise, and a fourth-stage low-pass filter (LPF) to filter out signals above 250 Hz. The instrumentation amplifier in
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47

Shih, Hung-Yu, and 施泓宇. "Low-Power Reconfigurable Analog Front-End Circuits for Biomedical Applications." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/28424217475741955330.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>103<br>This thesis presents a novel fully reconfigurable low-power filter and an integrated reconfigurable analog front-end channel suitable for wearable or implantable biomedical and sensor applications. Floating-gate transistors are employed as analog memories that can be reconfigured to change circuit characteristics. The proposed reconfigurable filter consists a cascade of floating-gate transistor-capacitor (FGT-C) biquadratic sections that provide either lowpass or bandpass outputs. In the proposed biquadratic filter, all filter parameters including the gains,
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"A CMOS Analog Front-End Circuit for Micro-Fluxgate Sensors." Master's thesis, 2013. http://hdl.handle.net/2286/R.I.18818.

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abstract: Fluxgate sensors are magnetic field sensors that can measure DC and low frequency AC magnetic fields. They can measure much lower magnetic fields than other magnetic sensors like Hall effect sensors, magnetoresistive sensors etc. They also have high linearity, high sensitivity and low noise. The major application of fluxgate sensors is in magnetometers for the measurement of earth's magnetic field. Magnetometers are used in navigation systems and electronic compasses. Fluxgate sensors can also be used to measure high DC currents. Integrated micro-fluxgate sensors have been developed
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SHEN, DING-HONG, and 沈定宏. "Integrated Circuit Layout Implementation of ECG Analog Front-end Circuits." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/w8d58k.

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碩士<br>中華大學<br>電機工程學系<br>107<br>This thesis complete pre-layout simulations and circuit layouts of a single-lead and a multi-lead ECG analog front-end circuits. Our proposed ECG analog front-end circuit includes an instrumentation amplifier, a band-pass filter, and a post-amplifier. Besides, we use a driving right Leg (DRL) circuit to filter out common mode interference. At first, we create an operational amplifier (OPA). Subsequently, we based on this OPA to construct a single-lead and a multi-lead ECG analog front-end circuit. We used the UMC 0.18um 2P6M CMOS process provided by National Appl
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Hung, Chih-Chien, and 洪誌謙. "Analog Front End Design for Gigabit Ethernet On Copper Wire." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/45529963901347631122.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>90<br>Ethernet has been the most successful media interface for local area networks(LANs) over the past decades. Recently, 100Mbits/s Ethernet is known as the most popular LAN. The next generation of local area networks(LANs) operates at a data rate of several hundred megabits, or gigabits per second. In order to minimize the cost, the use of the existing unshielded twisted-pair cable is desirable. However, to relax the complexity of ADC and digital signal processing circuits, the analog front end should provide coarse equalization under large echo of the copper wir
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