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DC-DC converters are the heart of any switched mode power supply (SMPS) system. Rather than using multiple number of DC-DC converters for regulating voltage of each of the outputs in a multi-output SMPS, the reliability and cost-effectiveness can be improved if a single DC-DC converter is used and viable control technique is employed to regulate the voltages effectively. This paper deals with such...
Many of the multiple output Switched Mode Power Supplies (MOSMPS) that are widely used in low power applications such as personal computers (PC) and medical electronic systems with stringent voltage regulation requirements, are often plugged into a standard utility power outlet (Single-phase ac 110-270 V, 50/60 Hz). It is not easy to regulate the output voltages using a single DC-DC converter especially...
This paper deals with a novel autotransformer based improved power quality eighteen-pulse ac-dc converter feeding vector controlled induction motor drives (VCIMD's). The design of the proposed autotransformer is presented along with the necessary modifications required for making it suitable for retrofit applications, where presently a 6-pulse diode bridge rectifier is used. The proposed ac-dc converter...
This paper deals with the design and analysis of a novel reduced rating autotransformer based twenty-four-pulse ac-dc converter for improving power quality at the point of common coupling (PCC) in vector controlled induction motor drives (VCIMD's). The proposed twenty four-pulse ac-dc converter is realized based on a tapped delta autotransformer having different windings at different phase angles...
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