Comparative Analysis of Transformer and Transformer Less-Based Variable DC Power Supply
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2013, Vol 3, Issue 1
Abstract
Abstract: Electronics circuitry needs DC power source of a specific value to work effectively. This paper considers the design and evaluation of transformer-based and transformer less-based variable regulated DC power supply with the aim of presenting a comparative analysis between them; and their respective areas of applications. The quality, cost, size, weight, performance and efficient production of DC power supply thus pose a great deal of concern and attention in the DC power production of any electronic device. The design methodology used in this work involves Software design for component selection, improved hardware design, computer simulation and evaluation of transformation, rectification, filtration and regulation stages for both transformer-based and transformer less -based adjustable DC power supply with graphical outputs. The results obtained after following the design specification was very satisfactory. The transformer-based has a robust output current and well isolated from the supply voltage, which makes it more suitable for high current application, highly reliable for powering electronics devices while the transformer less based DC source has smaller size, weight and cheaper so as to miniaturize electronics devices but limited to low current devices . It also generates far less noise, heat, input harmonic distortion levels, and higher transient response but lack of proper isolation unlike its counterpart thus result in lower Mean Time To Failure (MTTF).Transformer less variable DC power supply should be considered a viable option for lower power, small and low current applications where achieving the highest availability is not the top concern and cost, size and weight restrictions inhibit the use of traditional transformer-based DC power supply.
Authors and Affiliations
B. O. Omijeh
Keywords
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