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A new single-stage power factor correction (SSPFC) converter is proposed for the adapter application, which is composed of a flyback converter and a front-end input current shaper. Low conduction losses are achieved with only two diode conduction drops in the primary side. The conversion efficiency is improved with a direct energy transfer path, which is provided by the feedback wingding. Equations...
Due to the switching operation, the pulse-width modulation (PWM) converters are inherent time-variant systems with comprehensive dynamics. The generalized state-space averaging (GSSA) method is an approach to model them as time-invariant systems, defined by a set of differential equations and capable of representing circuit waveforms. This paper proposes a new generalized state-space averaging model...
A novel third-order sliding mode control strategy for Buck inverter is proposed based on Lie derivative method in this paper. The geometry associated with the sliding mode control is presented for the analysis and design of the control scheme. The inverter is composed of two symmetrical current bi-directional Buck converters controlled by two independent sliding mode controllers. Base on the equivalent...
Converters built with integrated modules have many advantages such as increased power density, flexible distributed control, multi-functionality, increased reliability and short design cycles. However, the system performance will be affected due to the synchronization errors among each integrated modules. This paper analyzes the impact of the two kinds of synchronization errors on the whole system...
This paper proposed uniform hybrid system models for second-order DC-DC converters working under continuous current mode. Contrast to the averaged and linearized models, no approximation is introduced to the modeling. The direct method of Lyapunov is used to analyze stability of the system and a new sliding mode control strategy is derived from the analysis. Simulation and experiment results are presented...
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