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Showing 1 to 20 of 20 for “"Flyback converter"”.
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Analysis of a dual mode forward/flyback converter
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1982.
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SPICE simulation and modeling of DC-DC flyback converter
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Bi-directional Flyback Converter Circuit Design for Flapping-wing Microrobots
… the powering circuit itself. The bidirectional flyback topology is chosen and explored, and a complete simulation and analysis are presented. It can be shown that with a careful component selection and a careful pulse frequency modulation, the bidirectional flyback converter can achieve a much …
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Designing and Implementing a Micro-controller based Primary-side Sensing Flyback Converter for LEDs Driver
… lifespan. By employing a primary-side sensing flyback converter and the PIC18F micro-controller series, an LED driver could achieve two important features: (1) the compatibility with the available lighting fixtures, and (2) reducing unit price. The flyback converter was chosen for its …
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Development of an isolated flyback converter employing boundary-mode operation and magnetic flux sensing feedback
… feedback and boundary-mode operation in a flyback converter to create a simple, small, low-cost, isolated, and tightly regulated power supply. Although each technique has been implemented before, the marriage of these two concepts is new. The union of these two techniques is powerful in …
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High-frequency Quasi-square-wave Flyback Regulator
… determine whether it was feasible to switch the flyback converter at 5 MHz in order to improve the power density of this versatile isolated topology. Soft switching techniques have to be utilized to eliminate the switching loss to maintain high efficiency at multi-megahertz. Compared to the …
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Low-power Power Management Circuit Design for Small Scale Energy Harvesting Using Piezoelectric Cantilevers
… circuit with a rectifier and a DC-DC converter is proposed to match the source impedance dynamically. Several low-power design methods are proposed to reduce power consumption of the circuit including: (i) use of a discontinuous conduction mode (DCM) flyback converter, (ii) constant …
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Use of SIMO Converstion for Optimizing LED Light Drivers
… market away from traditional power electronics converters and towards solutions that are more unconventional. Lower quality LED lights use simple low-cost converters, whereas high end product may add complexity in order to achieve a more dramatic energy savings. SIMO technology represents an …
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High Voltage DC-DC Converter Design for Submarine Application
… work a proof of concept for a step-down DC-DC converter used in a high voltage submarine application is presented. The purpose of the converter is to step down a 5000V-6000V input to a 24V output which can serve as an input to a submarine sensor. The completed system consists of two stages …
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Average current-mode control and charge control for PWM converters
Two control schemes for PWM converters, average current-mode (ACM) control and charge control, are studied in this dissertation. The small-signal models are derived for continuous-conduction mode PWM converters employing these two controls. Sampled-data modeling is applied to the current loop …
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High Temperature Silicon Carbide Mixed-signal Circuits for Integrated Control and Data Acquisition
… amplifiers and comparators, and 8-bit data converters. The signal processing circuits along with amplifiers and comparators are then used to develop an integrated mixed-signal controller for a DC-DC flyback converter in a microinverter application. The 8-bit SAR ADC and the 8-bit R-2R ladder …
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Digital Control Techniques for Switching Power Converters
Digital control methods for switching power converters offer greater robustness, more flexibility to changing operating characteristics, and better system performance than conventional techniques, which are often model-limited and only work well in a small range of conditions. Digital controllers …
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Zero voltage switching flyback and forward converter topologies
… density, distributed power supplies. Both the flyback and forward converter topologies are good candidates for these applications, owing to their simple circuitry. These topologies, however, require practical performance improvements. Improved zero voltage switching (ZVS) flyback and forward …
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Modeling and numerical methods for power electronic devices
… to predict the dynamic turn-on behavior of a flyback converter. A correction factor is added to the model to account for the effect of the snubber circuit. An Elementary Effects algorithm and a Bayesian inference routine are used to fit the averaged model to a more expensive netlist model. …
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Evaluation and Development of Medium-Voltage Converters Using 3.3 kV SiC MOSFETs for EV Charging Application
… and high-efficiency power electronics converters. These advancements have propelled a wide adoption of electric vehicles (EV), which in the future will require great improvements in the charging time of these vehicles. Thereby, this thesis attempts to address such a challenge and bring …
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Modeling strategy for EMI filter and flyback transformer
… introduces issues in conducted emissions. In a flyback converter, the transformer serves as the path for common mode current flowing from the primary side to the secondary side. Different winding technologies have been invented and implemented to reduce the capacitance between the primary side …
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Development of novel low noise switch-mode power supply designs for high fidelity audio power amplifiers.
… design of SMPS that elevate the performance of converter and help to enhance the efficiency of power supply through high speed switching transistors. In fact, the proposed scheme mitigates the noise considerably in various converter topologies through different mechanisms. To validate the …
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A Comparison between Different Snubbers for Flyback Converters
The DC-DC flyback power converter is widely used in low power commercial and industrial applications ( > 150 W) such as in computers, telecom, consumer electronics because it is one of the simplest and least expensive converter topologies with transformer isolation. Its main power circuit consists …
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High Efficiency Topologies for Dual Voltage Inputs
… and increased efficiency. The Dual Range converter comprises reconfigurable primary power loops enabled by additional State switches. This combination allows the converter to run in parallel or series modes, optimizing the performance at the high line, 230 Vac, and low line, 115 Vac Mains …
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Intentional and Unintentional Light Emission Diode in Power Electronics applications
… discontinuous current conduction mode flyback PFC converter has been revealed as the preferred choice in order to achieve a high PF with a good cost-performance ratio. Notwithstanding the use of a suitable control method that enables a high PF, different inherent causes of distortion in …