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Showing 1 to 10 of 10 for “"SEPIC"”.
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Modeling and Control of Single Switch Bridgeless SEPIC PFC Converter
… a single-ended primary-inductor converter (SEPIC) allows output voltage to be lower or higher than the input voltage. Thus, the SEPIC converter is gaining popularity as a LED driver because it does not require additional power conversion stage. However, designing a controller to meet …
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Energy Harvesting from Elliptical Machines: DC-DC Converter Design Using SEPIC Topology
… single-ended primary inductor converter (SEPIC) topology, as opposed to the resonant zero-current switching/zero-voltage switching (ZCS/ZVS) topology-based off-the-shelf DC-DC converter that the previous project utilized, which had poor system functionality at high physical input levels …
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Analysis and Design of a DCM SEPIC PFC with Adjustable Output Voltage
… article for a non-isolated hard switching DCM SEPIC PFC. Due to DCM operation of SPEIC converter, wide adjustable step-down output voltage, continuous conduction of input current and elimination of reverse recovery loss can be achieved at same time. The thesis begins with circuit operation …
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High Efficiency SEPIC Converter For High Brightness Light Emitting Diodes (LEDs) System
… applications is proposed, which is a modified SEPIC converter working in discontinuous conduction mode (DCM). Different with a conventional SEPIC converter, the middle capacitor is replaced with a valley-fill circuit. The valley-fill circuit could reduce the voltage stress of output diode and …
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Single-switch bridgeless PFC sepic with proposed series-line-diodes-clamped configuration for data communication applications
… presents a Single-Switch Bridgeless PFC (SSBPFC) SEPIC which is passive PFC with proposed series-line-diodes-clamped (SLDC) configuration for circuit structure simplicity and power quality issues mitigation. The structure simplification considers the reduction in number of components, while the …
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Design of a low-voltage low-power dc-dc HF converter
… the development of a High Frequency (HF) dc-dc SEPIC converter exploiting resonant switching and gating with fixed frequency control techniques to achieve these goals. The proposed approach provides high efficiency over very wide input and output voltage ranges and power levels. It also provides …
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A Novel DC-DC Converter for Photovoltaic Applications
… known as the Coupled Inductors Combined Cuk-SEPIC' (CI-CCS) converter is explored, which is particularly attractive for these photovoltaic applications. A topological modification is investigated which provides several benefits, including increased power density, efficiency, and operational …
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Single Phase Power Factor Correction Circuit with Wide Output Voltage Range
… two main power stage candidates (Buck+Boost and Sepic) in terms of efficiency, complexity, cost and device rating, the buck+boost converter is employed as the variable output PFC power stage. From the loss analysis, this topology has a high efficiency from light load to heavy load. The control …
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High-frequency multi-resonant power conversion techniques
… buck, boost, buck-boost, Cuk, Zeta, and SEPIC. The analysis is performed using a generalized multi-resonant switch concept. The forward ZVS-MRC topology is employed to develop a state-of-the-art, high-density, on-board dc/dc power converter. The converter operates with a nominal input of …
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The Effects of Elasticity in the Foundation on the Flutter of a Metallic High Aspect Ratio Wing
<p>The goal of this thesis is to study the flutter characteristics of a metallic high-aspect ratio wing, with linearly varying chord across the semis-span, and a simulated elastic foundation. The general planform of the wing is similar to the one found in a High- Altitude Long-Endurance Uninhabited …