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Showing 1 to 20 of 91 for “"Resonant converter"”.
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High-frequency quasi-resonant converter techniques
… these two techniques two new families of quasi-resonant converters are derived. Since the stresses on semiconductor switching devices are significantly alleviated, these quasi-resonant (QRC) converters are suitable for high-frequency operations with much improved performances and equipment power …
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Constant-frequency parallel-resonant converter (clamped-mode)
… analysis of a Constant-Frequency Parallel-Resonant Converter operating in the Clamped-Mode is performed for the continuous-conduction mode of operation (CCM). Unified closed-form expressions are derived for such circuit characteristics as the control to output, boundary conditions for …
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Steady-State Time-Domain Analysis of LLCL Resonant Converter
This thesis presents a new LLCL resonant converter topology which is capable of providing zero voltage switching of MOSFET switches for a wider range of operating frequency as compared to conventional LLC resonant converter topology. The proposed topology (LLCL) is a modified form of conventional …
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Condition monitoring of SiC MOSFETs on LLC resonant converter
… (Si) counterparts. SiC-based power electronic converters, therefore, are optimal when operated at medium voltage to high voltage in high switching frequency applications, which results in a much higher power density than Si-based power converters. The reliability of SiC devices, however, …
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Power factor correction using a boost quasi-resonant converter
A steady-state analysis of a quasi-resonant zero current boost converter is performed in its application to a single-phase power factor correction circuit. The known closed-form expressions are used to design the boost converter and the multiloop control circuit. The operating characteristics are …
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Two-Stage Multi-Channel LED Driver with CLL Resonant Converter
… LED driver is proposed. It is composed of a buck converter as the first stage and a multi-channel constant current (MC3) CLL resonant converter as the second stage. For the CLL resonant converter, the magnetizing inductance of the transformer can be as large as possible. Therefore, the magnetizing …
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Some Extensions of Poincaré-Bendixson Theory Applied to a Resonant Converter.
… and uniqueness of limit cycles are shown for a resonant converter, by extending Poincaré-Bendixson theory to non-smooth vector fields. We discuss relevant control theory and the role of simulations.
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LLC Resonant Converter Based Single-stage Inverter with Multi-resonant Branches
… variable frequency modulation (VFM) based on LLC resonant converter. And LLC converter is a common topology of dc/dc conversion. LLC resonant converter can achieve high efficiency and soft-switching performance. Since the dc gain curve of the single-resonant LLC converter is flat when the …
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High Efficiency Optimization of LLC Resonant Converter for Wide Load Range
… efficiency target for the whole AC/DC front-end converter over a wide load range. Distributed power systems are widely adopted in the telecom and computing applications for the reason of high performance and high reliability. As one of the key building blocks in distributed power systems, DC/DC …
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A High Power Density Three-level Parallel Resonant Converter for Capacitor Charging
… and high-density three-level parallel resonant converter for capacitor charging. DC-DC pulsed power converters are widely used in military and medical systems, where the power density requirement is often stringent. The primary means for reducing the power converter size has been to …
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A Time-Domain Modeling of Multi-Element Resonant Converter With Capacitive Output Filter
… tool has been proposed for the multi-elements resonant converters. A computer program has been written using the generalized equations in MATLAB App Designer. The MATLAB App Designer provides a graphical user interface (GUI) features to this tool. The time-domain analysis of CLL resonant …
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Clamped-mode fixed frequency series resonant converter: off-line application, analysis and implementation
The performance of the clamped-mode series resonant converter operating at a fixed frequency is studied for off line applications. A new set of characteristics for the converter operating above and below resonant frequency has been developed by including the effect of losses in the analysis. Based …
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Development of a high-density, off-line, quasi-resonant converter using hybrid techniques
… reduces the efficiency of the supply. A quasi-resonant topology reduces much of this loss. For a Zero-Current-Switched (ZCS) Quasi-Resonant Converter (QRC) the turn-off loss is nearly eliminated. It was the objective of the research reported here to combine the quasi-resonant technology with …
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Dynamic modeling, simulation, and control of a series resonant converter with clamped capacitor voltage
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Design, Modeling and Control of Bidirectional Resonant Converter for Vehicle-to-Grid (V2G) Applications
… of a boost power factor correction (PFC) converter followed by a dc-dc converter. This dissertation focuses on the design, modeling and control of a bidirectional dc-dc converter for conductive battery charging application. In this dissertation, a detailed design procedure is presented for …
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Modeling and design of an LLC resonant converter for a wide voltage conversion ratio applications
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Magamp post-regulator applied to a quasi-resonant converter and magamp operation under extreme load condition in a PWM converter
… concerns with magamp post regulation for a quasi-resonant converter. A magamp circuit is proposed, designed and tested for a zero current switching quasi-resonant forward converter. It demonstrates that output regulation in a quasi-resonant converter can be achieved with a fixed switching …
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TECHNOLOGIES TO IMPROVE GAN-BASED LLC RESONANT CONVERTER FOR WIDE INPUT VOLTAGE, HIGH OUTPUT CURRENT AC-DC AND DC-DC APPLICATIONS
… in today’s most popular industrial applications. Resonant converters, among a variety of mainstream power converter topologies, are receiving more and more attention owing to their features of high efficiency and high power density. This thesis discusses several challenges to apply LLC resonant …
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High-Efficiency and High-Frequency Resonant Converter Based Single-Stage Soft-Switching Isolated Inverter Design and Optimization with Gallium-Nitride (GaN)
… is limited. People either utilize PWM based converter as dc-rectified sine stage with duty cycle adjustment or apply SRC or LLC resonant converter for better soft switching characteristics. For PWM based converter, hard switching restricts the overall inverter efficiency, while for SRC/LLC, …
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Magnetic and Thermal Design of Litzwire 500 kHz Highpower Planar Transformers with Converging Cooling Duct for “dc Transformer” Resonant Converter Applications
… outputseries partial power processing converter (IPOS PPP). Because the two power paths in the IPOS PPP operate as “dc transformers” (DCX), both transformers are designed with the goal of leakage inductance minimization in order to reduce gain variation around the resonant frequency. …
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