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Showing 1 to 20 of 23 for “"boost converters"”.
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Investigation on Interleaved Boost Converters and Applications
… and German Blue Angel. Today, the existing boost PFC is reaching its limitations to meet these challenges simultaneously. Using the cutting-edge semiconductor devices, further efficiency improvement at light load is still needed. There are limited approaches available for increasing the …
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Estimation Based Adaptive Controllers for Microgrid Connected Boost Converters
… Load (CPL) behavior, given by tightly regulated converters connecting AC and DC loads to a DC bus. This thesis presents an innovative nonlinear estimator used to identify the CPL and resistive power consumption components, and two estimation based controllers for Boost converters regulating the …
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Generalized Average-Current-Mode Control of Single-Phase AC-DC Boost Converters with Power Factor Correction
… control (ACMC) for single-phase ac-dc boost converters with power factor correction (PFC). Traditional ACMC is generalized in a sense that it offers improved performance in the form of significant reduction of the current control loop bandwidth requirement for a given line frequency in …
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Design of a wide input supply range buck-boost converter
Buck-boost converters allow the flexibility of stepping-up and stepping-down the input supply to generate a regulated output, thus making them very attractive for applications with wide input supply range. Currently, off-the-shelf buck-boost converters require a minimum operating voltage of 1.8V. …
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Digital current mode control for multiple input converters
… current mode control on multiple-input (MI) converters is studied. As for MI topologies having a central energy transfer inductor, the predictive constant on-time current-mode control can greatly reduce both the design and digital realization efforts needed. By doing digital constant on-time …
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Single stage boost inverter for standalone fuel cell applications
… conversion schemes. The selected topology is the boost inverter that consists of two identical boost converters for boosting and inversion of the PEMFC de voltage. Moreover, it achieves reliable operation under nonlinear loads, sudden load changes and inrush current, using a double loop control …
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Digital control of a multi-channel boundary-conduction-mode boost converter for power-factor-correction applications
… for multi-channel boundary-conduction-mode (BCM) boost converters. Multi-channel BCM boost converters are commonly used for the front-end power-factor-corrected (PFC) stage of isolated ac-dc power supplies due to the advantages of being low cost and having high efficiency for a universal …
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Design and Analysis of a Single-Stage Inverter Using Parallel DC-DC Converters for Solar Cell Application
… concept to investigate the possibility of using boost and buck-boost converters to provide an AC output. The proposed circuit utilizes non-synchronous boost and buck-boost converters due to their simplicity in control signals as opposed to synchronous converters. The application of the proposed …
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Performance Improvement of Power Conversion by Utilizing Coupled Inductors
… call for high-efficiency high step-up DC-DC converters. The basic topologies suffer from extreme duty ratios and severe rectifier reverse recovery. Utilizing coupled inductor is a simple solution to avoid extreme duty ratios, but the leakage inductance associated with the coupled inductor …
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A Modified Boost Converter with Reduced Input Current Ripple
… and implementation of a recently-proposed boost converter topology, alongside an equivalent standard boost converter, operating in steady-state, continuous conduction mode. A Matlab-based simulation predicts each converter’s input ripple performance using a state-space model. The …
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The Modified-Multiphase Boost Converter: Combined Inductors and Capacitors Topology
<p>In this work, a modified boost converter design has been implemented in a multiphase configuration with a condensed topology. The modified aspect of the design has already been proven to drastically reduce input current ripple by about 40% in a single-phase implementation. By placing two …
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Voltage regulation of a series stacked system of digital loads by differential power processing
… topology implemented with bi-directional buck-boost converters. Some of its dynamic drawbacks are pointed out and a topological modification to counter those drawbacks is proposed. We then develop a linear control to regulate processor core voltages in a series stack of 4 cores. A hysteretic …
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Voltage regulation of a series stacked system of digital loads by differential power processing
… topology implemented with bi-directional buck-boost converters. Some of its dynamic drawbacks are pointed out and a topological modification to counter those drawbacks is proposed. We then develop a linear control to regulate processor core voltages in a series stack of 4 cores. A hysteretic …
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Design of a Very High Frequency dc-dc boost converter
… a Very High Frequency (VHF, 30 - 300 MHz) dc-dc boost converter using a MOSFET fabricated from a typical power process. Modeling and design studies reveal the possibility of building VHF dc-dc converters operable over the full automotive input voltage range (8 - 18 V) with transistors in a 50 V …
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Broadband excitation of fuel cells for online condition monitoring using different switch-mode DC-DC mode topologies
… the feasibility and compares the use of the buck-boost and boost converters to perform impedance spectroscopy, and this is done by modelling and designing the converters for a linearized region of operation to accommodate different operating conditions of the fuel cell. This is achieved mainly …
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DESIGN AND ANALYSIS OF CONTROLLERS FOR BOOST CONVERTER USING LINEAR AND NONLINEAR APPROACHES
Power converters are electronic circuits for conversion, control and regulation of electric power for various applications, such as from tablet computers in milliwatts to electric power systems at megawatts range. There are three basic types of power converters: buck (output voltage less than the …
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Fully integrated ultra low voltage cold start system for thermal energy harvesting . . .
… Typical energy harvesters use high efficiency boost converters, which are able to step-up voltages from as low as 10 mV. However, they often need > 200 mV in order to start up initially. Current solutions for achieving a low voltage start up require the use of bulky off-chip transformers, …
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Robust Control of a Multi-phase Interleaved Boost Converter for Photovoltaic Application using µ-Synthesis Approach
… electronics. Recent advances of interleaved boost converters have showed improved features between the power conversion topologies in several aspects, including power quality, efficiency, sustainability and reliability.</p> <p>Interleaved boost converter with multi-phase technique for PV …
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Multilevel capacitor-clamped DC-DC boost converter structure with soft-switching technique implementation for high power density achievement
… the proposed 4-level capacitor-clamped DC-DC boost converter (CCBC) with soft-switching implementation for high power density achievement. The proposed 4-level CCBC has an ability to reduce the size and volume of passive components and have similar characteristics with the conventional DC-DC …
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Development of advanced power factor correction techniques
… and tight output regulation. A family of PPFC converters were proposed for different power levels, which are simpler and more efficient than the conventional two-cascade-stage systems. Since isolated boost converters are adopted as the main power stage in some of the PPFC converters, a device …
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