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The photovoltaic generator exhibits a non-linear I-V characteristic and its maximum power point varies with solar insolation. In this paper, a single-phase single-stage inverter capable of tracking maximum power from the photovoltaic array and injecting a sinusoidal current to the load is presented. Mathematical models are formulated and then a tracking algorithm is evolved. Combined photovoltaic...
In this paper analysis and hysteretic controller design of a 3rd order step-down buck converter is presented. Various small-signal models valid up-to half of the switching frequencies, using state-space averaging method, are developed and then step-by-step controller design procedure is described. The results of controller design and closed-loop analysis are illustrated through computer simulations...
This paper presents a signal flow graph analysis of the power electronic systems. Due to circuit switching the power electronic systems becomes non-linear and it's modeling plays an important role in the design-oriented analysis. The well-established modeling techniques present difficulty in the model formulation, particularly, while we apply for higher order converters. The main emphasis of this...
In this paper analysis and controller design of a voltage-mode controlled of hybrid switched capacitor converter is presented. The state-space averaging method is applied to formulate the small-signal models, valid up-to half of the switching frequency, of the converter and a loop gain is adapted to design the voltage-mode feedback compensation. Closed-loop performance of a hybrid switched capacitor...
In this paper a simple two-loop voltage mode control scheme for the switched capacitor step down buck converter is proposed. This is a voltage-mode control scheme in which the external saw-tooth generator for the PWM generation is not required. The controller implementation requires only a single error amplifier and gives almost current mode control performance. The proposed switched capacitor converter...
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