Print Email Facebook Twitter Development of an LED Driver for Automotive Applications Title Development of an LED Driver for Automotive Applications Author Conesa Baños, Alvaro (TU Delft Electrical Engineering, Mathematics and Computer Science; TU Delft Electrical Sustainable Energy) Contributor Del Croce, Paolo (mentor) Illing, Robert (mentor) Qin, Zian (graduation committee) Bauer, Pavol (graduation committee) Cvetkovic, Milos (graduation committee) Degree granting institution Delft University of Technology Date 2018-01-19 Abstract Power switches are used very often in applications such as industrial and automotive. The main function of these devices is to switch the energy delivered to the load so that power could be transferred in the most optimum way meeting a certain set of requirements. Due to recent and continuous developments in system-on-chip technologies, it will be possible to combine power devices together with more and more highly integrated circuits. This is the case of Infineon’s smart technology, whose fitness for mass-production culminates in very cost-effective and attractive solutions to customers in the automotive field.This thesis focuses on proving the feasibility of using Infineon’s smart technology for an LED driver application and developing a flexible hardware platform which can be used to perform system-level analysis before designing integrated circuits.Starting from an available test-chip which integrates the power device, the feasibility of the solution will be firstly analyzed making use of a simulation approach. The driver concept and the DC/DC stage will be put together with the switch’s detailed model to determine whether the device family could be used in the conditions given by the application of interest.Once the problem has been tackled from a simulation point of view, a loss model will be derived in order to evaluate the efficiency of the whole system. Coil, capacitor, diode and switch among others will account for the total losses of the solution. The next step towards the physical implementation of the solution will consist in finding a suitable floating gate driver which could deliver the required amount of current to the switch. Two systems will be analyzed and compared in order to determine which would suit the application best. A step further will be taken in order to optimize the prototype setup. The DC/DC converter will be implemented on a PCB to minimize undesired parasitics and improve the results observed at previous measurements.Besides, a literature study on concepts and strategies to control the system will be introduced and carried out. A comparison between different alternatives will be made in order to choose which would suit the application best. Once the most suitable control topology has been selected, a practical design will be proposed for the application of interest.Lastly, the most suitable control scheme will be implemented on a real system at the lab using a rapid control prototyping tool from dSPACE. The steps of this process will be described and the obtained results will be shown and analyzed in order to draw final conclusions and present future work. Subject smarttechnologyDCDCbuckLEDdriverdSPACEautomotive To reference this document use: http://resolver.tudelft.nl/uuid:dc16066e-e0f3-4694-8885-b0ad853e7b11 Embargo date 2020-01-19 Part of collection Student theses Document type master thesis Rights © 2018 Alvaro Conesa Baños Files PDF A_Conesa_MSc_thesis_report.pdf 12.58 MB Close viewer /islandora/object/uuid:dc16066e-e0f3-4694-8885-b0ad853e7b11/datastream/OBJ/view