Designing buck chopper converter by sliding mode technique
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2014, Vol 8, Issue 9
Abstract
In many industrial applications, it is needed to convert a DC source with a variable voltage. The purpose of DC-DC converter is providing DC output voltage set to a resistance with a variable load from a swinging DC input voltage. Choppers are DC-DC converters used for transmission of electric power from a DC source to another DC source that a load might be passive. Choppers have two separate operation mode that have very different properties: continuous conduction mode and discontinuous conduction mode. In practice, a converter may operate in two modes. So, control of converter is designed for both operations controlled in order to create a desired level, in which input voltage and output load may fluctuate. DC-DC transformers in the switch mode, apply one or more switches for DC transmission from a desired level to another one. In DC-DC converter with a given DC voltage the average output voltage is controlled by controlling on and off times in the switch. Buck converter produces the average output voltage which is less than input DC voltage.
Authors and Affiliations
Sepideh Fazel| Tabriz Islamic Azad University, email : fazel.sepideh@gmail.com, Seyedeh neda Ashraf| Tabriz Islamic Azad University
Keywords
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