Searched for: subject%3A%22TDC%22
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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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Roy, S. (author), Lee, Jinoh (author), Baldi, S. (author)
This brief proposes a new adaptive-robust formulation for time-delay control (TDC) under a less-restrictive stability condition. TDC relies on estimating the unknown system dynamics via the artificial introduction of a time delay, often referred to as time-delay estimation (TDE). In conventional TDC, the estimation error, called TDE error, is...
journal article 2021
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Piastra, Maria Carla (author), van der Cruijsen, J. (author), Piai, Vitória (author), Jeukens, Floor E.M. (author), Manoochehri, M. (author), Schouten, A.C. (author), Selles, R.W. (author), Oostendorp, Thom (author)
Objective. Large structural brain changes, such as chronic stroke lesions, alter the current pathways throughout the patients' head and therefore have to be taken into account when performing transcranial direct current stimulation simulations. Approach. We implement, test and distribute the first MATLAB pipeline that automatically generates...
journal article 2021
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van der Cruijsen, J. (author), Piastra, Maria Carla (author), Selles, R.W. (author), Oostendorp, Thom F. (author)
The inconsistent response to transcranial electric stimulation in the stroke population is attributed to, among other factors, unknown effects of stroke lesion conductivity on stimulation strength at the targeted brain areas. Volume conduction models are promising tools to determine optimal stimulation settings. However, stroke lesion...
journal article 2021
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Li, Chao Chieh (author), Yuan, Min Shueh (author), Liao, Chia Chun (author), Chang, Chih Hsien (author), Lin, Yu Tso (author), Tsai, Tsung Hsien (author), Huang, Tien Chien (author), Liao, Hsien Yuan (author), Staszewski, R.B. (author)
In this article, we introduce a fractional-N all-digital phase-locked loop (ADPLL) architecture based on a single LC-tank, featuring an ultra-wide tuning range (TR) and optimized for ultra-low area in 10-nm FinFET CMOS. Underpinned by excellent switches in the FinFET technology, a high turn-on/off capacitance ratio of LC-tank switched...
journal article 2021
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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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Carimatto, A.J. (author)
Multi Digital Silicon Photon Multipliers (MDSiPM), as image sensors, are utilized to calculate and estimate the properties of the incident light. These properties include spatial location of hits, intensity or number of photons and time of arrival. Some characteristics can be more important than others depending upon the problem at hand. Among...
doctoral 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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Zong, Z. (author), Chen, Peng (author), Staszewski, R.B. (author)
In this paper, we propose a 60-GHz fractional-N digital frequency synthesizer aimed at reducing its phase noise (PN) at both the flicker (1/f <sup>3</sup> ) and thermal (1/f <sup>2</sup> ) regions while minimizing its power consumption. The digitally controlled oscillator (DCO) fundamentally resonates at 20 GHz and co-generates a strong...
journal article 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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Akgün, O.C. (author)
This paper presents the design of a low-power asynchronous pipelined time-to-digital converter (AP-TDC) to be employed in a time-domain signal processing system. The presented AP-TDC utilizes two novel concepts, namely time-domain subtraction and absolute value based algorithmic conversion. The design and <br/>simulation of the AP-TDC is done...
conference paper 2018
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Venialgo Araujo, E. (author), Lusardi, Nicola (author), Garzetti, Fabio (author), Geraci, Angelo (author), Brunner, S. (author), Schaart, D.R. (author), Charbon-Iwasaki-Charbon, E. (author)
Typically, a time-of-flight (TOF) PET block detector is built using application-specific integrated circuits (ASICs), since they integrate a high number of channels at a reasonable power consumption and into a small area. However, ASICs’ flexibility is limited and prototyping times are long because a semiconductor fabrication process is required...
journal article 2018
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Ronchini Ximenes, A. (author), Padmanabhan, P. (author), Charbon-Iwasaki-Charbon, E. (author)
Direct time-of-flight (dTOF) image sensors require accurate and robust timing references for precise depth calculation. On-chip timing references are well-known and understood, but for imaging systems where several thousands of pixels require seamless references, area and power consumption limit the use of more traditional synthesizers, such as...
journal article 2018
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Chen, Peng (author), Huang, Xiongchuan (author), Chen, Y. (author), Wu, Lianbo (author), Staszewski, R.B. (author)
To characterize an on-chip programmable delay in a low-cost and high-resolution manner, a built-in self-test based on a first-order &amp;#x0394;&amp;#x03A3; time-to-digital converter with self-calibration is proposed and implemented in TSMC 28-nm CMOS. The system is self-contained, and only one digital clock is needed for the measurements. A...
journal article 2018
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Kuo, Feng-Wei (author), Babaie, M. (author), Chen, Huan-Neng (Ron) (author), Cho, Lan-Chou (author), Jou, Chewn-Pu (author), Chen, Mark (author), Staszewski, R.B. (author)
We propose a time-predictive architecture of an all-digital PLL (ADPLL) for cellular radios, which is optimized for advanced CMOS. It is based on a 1/8-length time-to-digital converter (TDC) of stabilized 7-ps resolution, as well as wide tuning range, and fine-resolution class-F digitally controlled oscillator (DCO) with only switchable metal...
journal article 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
Searched for: subject%3A%22TDC%22
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