Searched for: contributor%3A%22Verhoeven%2C+C.J.M.+%28mentor%29%22
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Huang, Shijie (author)
Class D amplifiers find widespread application in audio devices for driving load speakers, primarily due to their remarkable efficiency. Nonetheless, this enhanced efficiency often comes at the expense of reduced linearity. Hence, techniques for reducing Total Harmonic Distortion (THD) are important in the context of class D amplifiers.<br/><br/...
master thesis 2023
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Zhu, Zitao (author)
This report presents a bandgap reference voltage source that achieves 5-sigma Inaccuracy of ±0.5% from -40C to 150C under 16FFC process. This is the first time 16nm techniques are used in automotive products and the first time trying to realize analog circuits in such a process for in-vehicle network purposes. The report points to good behavior...
master thesis 2023
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Appelman, Tycho (author), Bruinsma, Carli (author), Ouaissa, Anass (author)
Lunar dust presents a serious problem for future lunar rovers. Due to the charged nature of this fine dust, it tends to stick to sensitive elements like solar panels. It is clear that a system needs to be implemented in order to remove lunar dust to keep the output power of the solar panel at a satisfactory level. This paper develops the proof...
bachelor thesis 2023
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van Veen, Joost (author), Goudzwaard, Yannick (author)
The goal of this thesis is to develop a ROS package that facilitates the control and navigation of a Duckiebot robot. With the rise of robot swarms the need for autonomous charging system for robots is increasing. An implementation for decentralised autonomous behaviour for a Duckiebot for a wireless charging system in a Duckietown environment...
bachelor thesis 2023
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Ayoub, Mahmoud (author), Versluis, Manno (author)
This project focuses on building a wireless charging station for the Lunar Zebro robots and building upon the existing functionalities by matching the interfacing voltage and current requirements for the wireless power transceiver.
bachelor thesis 2023
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du Plessis, Nicolaas (author), Roos, Martijn (author)
This thesis aims to solve the problem of designing the hardware for a wireless charging system to be used for keeping an autonomous robot swarm alive. Previous designs available to us lacked essential safety features and were very specific in their application. Current wireless charging specifications are also not sufficient to cater to the...
bachelor thesis 2023
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Geerling, Tom (author), Mihankhah, Mehrdad (author), Plantfeber, Tim (author)
One of the major challenges faced by future robotic and human missions to Mars and the Moon is the presence of atmospheric dust. The Lunar Zebro rover which is intended to walk on the Moon is powered by solar panel. Due to its surrounding terrain, which mostly consists of small particles, the rover may be a potential target for dust accumulation...
bachelor thesis 2023
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Gelling, Lars (author)
The unique six-legged swarming rover Lunar Zebro is designed and produced by students from the Delft University of Technology. The objective of the rover is to accomplish an autonomous mission on the Lunar surface by 2024. This thesis evaluates a path planning algorithm that is designed for autonomous navigation in the Lunar environment. The...
master thesis 2023
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van Dam, Nadine (author), Jonker, Mees (author)
Unmanned underwater vehicles benefit from communication with a high data rate on relatively small distances (under 100 m). Existing communication methods are not able to provide this or present other shortcomings. Therefore, this bachelor end project focuses on a new type of underwater communication, quasi-static electric field communication....
bachelor thesis 2022
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Makinwa, Soji (author), van der Laan, David (author)
In this report the analysis of underwater communication using electric quasi-static fields is undertaken, in which key aspects that influence the performance the communication between a transmitting and receiving electrode is examined. A mathematical model was proposed for the transmission and reception of the quasistatic field and the expected...
bachelor thesis 2022
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van Mourik, Floris (author), Onstein, Teije (author)
As electromagnetic waves cannot propagate sufficiently far in water, underwater communication is mainly performed using either acoustics or optics. However, none of these technologies have been proven to be completely effective in every situation. Therefore, research in new underwater communication systems can still bring large benefits to a...
bachelor thesis 2022
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Boele, Jelle (author)
This thesis describes the design of a CMOS magnetic field sensor system for measuring electronic currents. A hybrid system, using Hall plates and a pick-up loop is chosen to obtain improved performance compared to conventional Hall based magnetic field sensors. The pick up loop enables to reduce the current consumption and increases the...
master thesis 2022
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Zhang, Chenyan (author)
Modern communication systems have a strong need for low-cost and high-stability frequency references. Although low-cost crystal oscillators can easily be realized and are available to the market in large quantities, crystal oscillators with frequency stability in the ppb(10^{-9}) range over a wide temperature range are only available at high...
master thesis 2022
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Li, Haoyuan (author)
This thesis discusses the basic architecture, design details, circuit implementation, and measurements of a digital class D current driver.<br/>The driver contains two main parts: a digital control loop and analog circuits.<br/>Parts of the important part in the digital control loop contain noise shaper, plant compensator, and cable capacitance...
master thesis 2021
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Bongaardt, Laura (author)
Robots that use legged locomotion have the ability to overcome obstacles and can negotiate a wide range of difficult terrains, such as encountered in outer-space missions. In many practical scenarios however, their applicability is still limited, mainly due to insufficient speed and efficiency. On the other hand, robots that use wheeled...
master thesis 2021
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van Veelen, Frank (author)
In the past years, small Earth Observation (EO) satellites have become increasingly capable of taking high-resolution images at high sample rates. These images contain valuable information for different sectors, such as the agricultural and military sector. Furthermore they can contain important information about the climate and climate change....
master thesis 2021
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Insinger, Jasper (author), Fischer, Rogier (author)
This thesis’s objective was to re-design a weight sensor readout system for Intralox, an international manufacturer of conveyor belts and equipment. Intralox’s current implementation is expensive, too complicated, and inaccurate. After considering several possible readout implementations, an inductively coupled solution with a frequency-based...
bachelor thesis 2020
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van den Bos, Ruben (author), Bokhorst, Rik (author)
This thesis presents a resonant sensor circuit design that converts the deformation of a load cell in a conveyor belt into a change in resonance frequency. The sensor is inductively coupled to a reader circuit using planar PCB inductor coils. A sensor circuit was designed, fitted on a square PCB with 14.14 mm side length. The circuit consists of...
bachelor thesis 2020
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van Heteren, Mauries (author), Dijkstra, Jonathan (author)
In this thesis, the design of a frequency analysis system for conveyor belt weighing systems is designed. The objective of the thesis is to detect a change in resonance frequency, caused by a change of pressure applied to a sensor. The design features a resolution of 10 000 discrete frequency levels in a bandwidth of 0.5 MHz. Noise division of a...
bachelor thesis 2020
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Manchanda, Prabhav (author)
Space launches have been steadily increasing over the years as satellites are being used in various applications such as communication, military, and science. The costs of launching satellites are still high and depend on the dimensions and weight of the satellite. With the advancement in the field of autonomous robotics and telecommunications,...
master thesis 2019
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