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This paper presents the small-signal modeling and controller design of an isolated Quasi-Switched-Capacitor (QSC) dc/dc converter. The converter serves as an auxiliary power supply in automotive applications, connecting the highvoltage battery and the 14 V power net. It employs a front-stage QSC dc/ac circuit with a 3:1 voltage step-down ratio, and a poststage synchronous-rectifier, current-doubler...
In order to realization electronic parts product appearance quality detection control, one kind of processor based on the intelligent knowledge automatic extraction and system intelligence modeling was presented. In the processor, wavelet-fuzzy technique and neural network technique are combined. Uses the fuzzy wavelet extraction image feature, and wavelet function is used as fuzzy membership function...
Average switch models for both small signal and large signal performance of a phase-shifted full-bridge PWM (PS-FB-PWM) converter under charge control called charge-controlled ZVS-PWM switch (QC-ZVS-PWM) are developed in this paper. By substituting these models into cycle-by-cycle model of PS-FB-PWM converter the small signal and large signal behavior of the converter can be easily predicted. Implementation...
Model reference variable structure controllers are applied to switched-mode circuits, and their performance robustness is investigated. A generalized formulation together with its solution is presented for a class of problems, in variable structure control, involving state-space analysis of inherently time-varying regulators. The effects of the design averaging model and its description on tracking...
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