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Kastratović, Sanja (author)This thesis presents the design of a low-power, sub-1V, BJT-based temperature sensor. It is based on a capacitively-biased (CB) BJT front-end, in which capacitors are discharged across diode-connected BJTs to obtain proportional-to-temperature (PTAT) and complementary-to-temperature (CTAT) voltages. These voltages are then digitised by a...master thesis 2023
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Xu, Guo (author)Depth sensing technology has developed rapidly recently due to its broad applications. Time-of-Flight (ToF) is a popular technology in depth sensing because of its advantages in high measuring accuracy and low complexity in image processing. ToF technologies are divided into two kinds: indirect time-of-flight (iToF) and direct Time-of-Flight ...master thesis 2022
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Son, Dongjin (author)In this work, a SPAD-based LiDAR system is studied. In particular, the system employs a direct time-of-flight (dToF) method to reconstruct a target-reflected pulses using histogram, from which the distance to the target is estimated. More particularly, a time correlated single photon counting (TCSPC) method has been used to record the flight...master thesis 2022
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Toth, Nandor (author)This thesis presents an energy-efficient high-accuracy temperature sensor that combines a BJT front-end with a continuous-time readout circuit. Its front-end is based on PNP transistors, which, compared to NPNs, are more widely available in CMOS processes and less sensitive to stress. In this design, proportional-to-absolute-temperature (PTAT)...master thesis 2021
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Kandilakis, Manos (author)Biomedical engineering focuses in advancing health care by taking advantage of the technological improvement. An important part of biomedical engineering is biomedical sensing, that focuses in the acquisition of biopotential signals. Through time, a lot of research has been done on the acquisition of biopotential signals and a variety of methods...master thesis 2021
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Mohamed Mahmoud Saad Hassan Saad, Mohamed (author)This thesis presents a BJT-based CMOS temperature-to-digital converter (TDC). With a continuous-time readout, the TDC avoids the kT/C noise limit incurred by previous discrete-time (switched-capacitor) TDCs. An energy-efficient BJT front-end generates single PTAT and CTAT currents for being digitized by a delta-sigma modulator through a linear...master thesis 2020
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Hill, Kevin (author)Most current proximity sensing methods fail the stringent requirements of modern smartphones. A position-sensing device (PSD) requires a laser placed some distance away from the sensor, intensity-based solutions are sensitive to changes in reflectivity, and ultrasound-based sensors cannot measure small distances because of resonance. With modern...master thesis 2019
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Jeukens, Floor (author)Stroke is a cerebrovascular disorder with 15 million cases every year worldwide. The most common symptom is motor deficits. In order to overcome such symptoms, the motor brain either repairs the damaged tissue or reorganises to compensate for the injured brain region. To stimulate this reorganisation transcranial Direct Current Stimulation (tDCS...master thesis 2019
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Lekkas, Konstantinos (author)Transcranial direct current stimulation (tDCS) is a noninvasive technique, allowing for the reversible modulation of activity in particular brain regions. TDCS has obtained much scientific interest and it promises many potential benefits to the patients.<br/><br/>However, tDCS that is performed today is almost the same with the method that was...master thesis 2019
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Kishore Kumar, Rushil (author)This thesis presents the most energy-efficient BJT-based CMOS temperature-to-digital converter (TDC) reported to date. It is based on a continuous-time front-end, which avoids the kT/C noise limit incurred by previous discrete-time (switched-capacitor) front-ends. An energy-efficient capacitively-coupled instrumentation amplifier (CCIA) boosts...master thesis 2018
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Muntean, Andrada (author)The thesis presents a design that implements digitization of an analog SiPM's fast output on chip realized in order to minimize the complexity and increase the photon detection granularity. The design comprises a time-to-digital converter (TDC) in 0.35um CMOS technology. The TDC is a multi-path gated ring oscillator with a 6 bit counter for...master thesis 2017
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Wu, Lichao (author)Many fields need high performance time measurements, including particle detection, time-resolved imaging, transducer array channel multiplexing and other time of-flight systems. These measurements are often performed by means of time-to-digital converters(TDCs), that for these applications, require high resolution, accuracy, and throughput. This...master thesis 2017
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Visser, S.M.C. (author)Analog interfacing is the only way to communicate with a quantum processor, whether it is applying qubit operations or reading their quantum states. There exist other applications where analog interfacing is abundant, e.g. sensor networks, automotive, industrial control, etc. In those applications the use of FPGAs is continuously growing,...master thesis 2015
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Somers, J.M. (author)Time and timing is everything and everywhere from catching a train to synchronizing machines in a production hall. The key issue of all communicating systems is synchronization. Today’s sensor networks are growing larger and more complex every day, creating a demand for simple and scalable networks, whereby data and clock distribution is shared...master thesis 2015
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Gong, T. (author)The endoscopic time-of-flight (TOF) positron emission tomography (PET) concept has many advantages compared with the traditional PET system. It improves the image quality by delivering higher spatial resolution and enhancing the signal-to-noise ratio. Implementing the endoscopic TOF PET system in an ultrasonic probe requires an ultra...master thesis 2015
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Chen, P. (author)The technology scaling favors the Digital PLLs, which is reconfigurable. In the traditional fractional-N ADPLL, whether counter-based or divider based, DCO and TDC are the main two power consuming blocks. Modifying the phase detection part based on phase prediction makes the architecture more energy-efficient. The new architecture leads to the...master thesis 2014
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Zhang, D. (author)Three-dimensional (3D) range detectors enabling 3D computer vision is now popular in automotive industry. With their participation, automobile safety has been further enhanced, autonomous driving has become realizable. Time-correlated single-photon counting (TCSPC) technique utilizing complementary metal-oxide semiconductor (CMOS) single photon...master thesis 2014
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Homulle, H.A.R. (author)For the master project work was carried out for the development of a fluorescence lifetime imaging probe for fluorescence guided surgery. For this project a prototype was designed. The work on the prototype was divided into three main parts, hardware, firmware / software, and system / optics. In this thesis the firmware / software of the system...master thesis 2014
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- Wang, B. (author) master thesis 2014
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Vlachogiannakis, G. (author)Despite their high degree of reconfigurability and friendliness to technology scaling, traditional ADPLL-based frequency synthesizers tend to come at the price of increased power consumption at their feedback path, compared to charge-pump based solutions. The main power consumption bottleneck is the TDC that operates at the high output frequency...master thesis 2013
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