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On the basis of the analysis of phase-shifted full-bridge ZVS PWM converter, Corresponding small-signal model is build using of state-space averaging method and the traditional Buck circuit model, Thereof, control block diagram of the system and transfer function are derived, Voltage single-loop control system is designed on the basis of small-signal model of phase-shifted full-bridge ZVS converter,...
A high order contactless power supply based on a current-fed full-bridge resonant converter is modeled using GSSA (generalized state space averaging) method. After representing the inverting networking and the rectifier with voltage and current controlled sources, both continuous and discrete models are derived to analyze the steady-state and dynamic performance of the system. The results obtained...
State-space average-value modeling of pulse-width modulation (PWM) converters in continuous and discontinuous modes has received significant attention in the literature, and various models have been developed. This paper presents a new approach for generating the state-space average-value model. In the proposed methodology, the so-called duty-ratio constraint and the correction term are extracted...
Small signal modeling of power converters is important for analysis, fast simulation and control design. The small signal modeling based on state-space averaging method has been widely used for PWM converters since the ripples are small in the inductor current or capacitor voltage. The model becomes less accurate from the real circuit if the ripple is not ignorable. In a resonant circuit, the inductor...
Aiming at strong nonlinearity and complexity of higher order switching converters, an integrative modeling method was proposed by integrating the state-space average modeling approach with the discrete-time modeling approach, based on which, stability analysis of current-mode controlled higher order switching converters was carried out, and the relation between the stability and the circuit parameters...
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