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This paper presents a simple applied space vector modulation (SVM) strategy using a duty-offset component injection for three-phase/level power factor correction rectifier, based on current sector control. In the proposed strategy, the duty cycle equations are determined by utilizing the calculated switching time method in order to generate the duty cycle signals based on a seven-segment switching...
The PFC Boost Converter is an integral part of modern power supplies to improve power factor in electronic devices. The inherent problem associated with it is common mode (CM) Electromagnetic interference (EMI) noise arising due to the higher switching transition rate (dv/dt). The main coupling path for the CM noise is provided by parasitic capacitance occurring between the switching node and ground...
This paper presents two single-phase, single-stage, ac-dc buck-boost converter topologies (A and B), for low-voltage low-power applications. The proposed converters draw sinusoidal input currents from the ac grid at unity power factor, and generate stable step up/down dc output voltage from an ac voltage with fixed or variable magnitude and frequency. Topology ‘A’ connects its two dc inductors in...
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