Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"integrated transformer"”.
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PCB-Based High-Power DC/DC Converters with Integrated Magnetics for Battery Charger Applications
… diminishes the voltage-second across the transformer, facilitating the utilization of printed-circuit-board (PCB) technology for the windings as opposed to Litz wire implementations. Compared to traditional Litz wire-based transformers, the manufacturing process is significantly …
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High efficiency switching CMOS power amplifiers for wireless communications
… and highefficiency class-E CMOS PA with a fully integrated transformer have been presented. This work is the first effort to set up a comprehensive design methodology for a fully integrated class-E CMOS PA including effects of an integrated transformer, which is very crucial for watt-level power …
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A simple transformer-based resonator architecture for low phase noise LC oscillators
This thesis investigates the use of a simple transformer-coupled resonator to increase the loaded Q of a LC resonant tank. The windings of the integrated transformer replace the simple inductors as the inductive elements of the resonator. The resonator topology considered in this project is a …
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Circuits for efficient and secure power delivery in distributed applications
… pW of power. With the goal of building a fully integrated transformer in the future, techniques for modeling an integrated transformer for optimal harvester performance have also been presented. Second, a receiver for device-to-device wireless charging is presented. The receiver dynamically …
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Evaluating transformers as memory systems in reinforcement learning
… reinforcement learning, however, the success of transformers in natural language processing tasks has highlighted a promising and viable alternative. Memory in reinforcement learning is particularly difficult as rewards are often sparse and distributed over many time steps. Early research into …
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Topology Investigation and System Optimization of Resonant Converters
… is proposed and analyzed, and an optimal integrated transformer design is proposed, which has low loss and compact size.
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Investigation and Design of Integrated Magnetics in High-power High-frequency Soft-switching DC/DC Converters for Battery Charger Applications
… frequency reduces the volt-second across transformers, which allows for the use of printed circuit board (PCB)-based windings instead of traditional Litz wire. This transition simplifies manufacturing, reduces cost and improves control over parasitic elements. Moreover, integrating …
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Planar Magnetic Integration and Parasitic Effects for a 3 KW Bi-directional DC/DC Converter
… of a set of lumped parasitic inductances and the transformer leakage inductance for the integrated planar magnetics and inverter power circuitry. For the conventional non-integrated transformer, either planar or non-planar, the leakage inductance is defined between two terminals of the …
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Compact Isolated High Frequency DC/DC Converters Using Self-Driven Synchronous Rectification
… self-driven method introduces two additional transformers that increase the overall footprint of the converter. Also, this thesis proposes a new magnetic integration method to eliminate the need for the two additional gate driver magnetic cores by allowing three discrete power signals to pass …
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Design and Integration Techniques for High-Frequency PCB-Based Magnetics in Resonant Converters
… further improve the power density. The proposed integrated magnetics can be automated in the manufacturing process. The magnetic size is reduced at this frequency, and planar magnetics using PCB winding become more relevant. PCB magnetics feature multiple advantages over Litz wire. The benefits …