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A systematic method is proposed to select desired multi-elements resonant topologies, like three-element, four-element or more elements resonant topologies. The intrinsic characteristics of multi-element resonant converters are utilized for this classification and selection method. Three-element resonant tanks are grouped. One group is chosen for illustration. The characteristics of topologies in...
The critical conduction mode (CRM) power factor correction converters are widely used in low power front-end converters for its high efficiency. Compared to the traditional CCM PFC, the large inductor current ripple in the CRM PFC makes the DM EMI noise a major concern and a large EMI filter is needed. Moreover, uncertainty of the worse case for the EMI noise in the CRM PFC may often lead to an overdesign...
This paper addresses the two-port network behavioral modeling of the power converters for renewable energy sources that feature non-linear static behavior. Based on the Hammerstein's approach, two models, non-linear dc and linear ac are both run simultaneously in the simulation while the dynamic model is constantly being updated with the operating point values from the static model, in order to include...
This paper describes the design and implementation of a prototype 30-kW (or 30-kJ/s) pulsed-power supply for capacitor charging. The system operates at 200-kHz maximum switching frequency, which is considerably higher than the conventional practice at this power level, leading to smaller passive components. A high power density of 143 W/in3 is achieved with the converter operating at a high ambient...
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