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Miniaturization of magnetic components employed in power electronic devices is interrelated to increasing switching frequency. That increases the need of studies on magnetic components at high frequency, above 1MHz. Some models have been developed for core loss calculations. Models based on Steinmetz's parameters are the most convenient ways. However, these models are still in need for more validation...
The stability analysis of the adaptive variable step size MPPT algorithms is extremely depending on the value of the scaling factor (N), which typically adjusts the input signal to a proper magnitude prior to determine the proceeding step size. This paper proposes a new small signal analysis of the variable step size incremental resistance INR MPPT algorithm used in photovoltaic PV battery charging...
Light emitting diodes (LEDs) with their current performances have become the most convenient solution to replace conventional lighting sources. LEDs are current driven devices with low equivalent dynamic resistance. This causes instabilities and bifurcations in the driver. Therefore, this paper provides the analysis and design considerations of the stability boundaries of the LED lamp model in comparison...
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