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Design of high efficiency switching converters for mobile applications

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dc.contributor Ph.D. Program in Electrical and Electronic Engineering.
dc.contributor.advisor Dündar, Günhan,
dc.contributor.author Ozanoğlu, Kemal.
dc.date.accessioned 2023-03-16T10:25:36Z
dc.date.available 2023-03-16T10:25:36Z
dc.date.issued 2020.
dc.identifier.other EE 2020 O83 PhD
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/13152
dc.description.abstract High power efficiency is a key design specification in mobile applications, mainly to increase battery life. To answer this need, switching converters are preferred in such applications to convert the battery voltage to voltage domains of various blocks. In this thesis, design improvements and novel solutions aiming to increase power efficiency and to enhance system performance for mobile platform switching converters are proposed for buck, boost, and buck-boost topologies. After a brief description of switching converter operation, a novel technique to improve power efficiency in buck converters is given, through optimized resistive and capacitive power losses of the output stage. Then, a charge recycling technique for single inductor dual output buck converters is described. Next, two improved control techniques for buck-boost converters based on hysteretic control and current mode control have been proposed. Finally, two novel techniques addressing the lock-out phenomenon occurring in boost and buck-boost converters are described. Simulation results show that the targeted performance improvements are achieved, thus demonstrating promising solutions for various future mobile platforms.
dc.format.extent 30 cm.
dc.publisher Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020.
dc.subject.lcsh Battery chargers.
dc.subject.lcsh Power electronics.
dc.subject.lcsh Mobile apps.
dc.title Design of high efficiency switching converters for mobile applications
dc.format.pages xvi, 111 leaves ;


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