Abstract
In this paper, a dc-dc buck converter with digital PI-controlled is analyzed and designed considering all design parameters such as inductance current variation, output voltage ripple etc. The designed dc-dc buck converter provides stable output voltage against to load changes and output voltage variations. Buck converter control method relies on voltage mode controlled PWM (Pulse width Modulation) with digital PI (Proportional Integral) controller. The design criteria, operating mode selection, suitable material selection, etc. of low cost and high-performance buck converter are explained in detail. Finally, the designed converter is carried out experimentally and the experimental results shows the effectiveness of designed converter under different load profiles.
Highlights
W ITH THE widespread use of renewable energy sources, it is obvious that dc microgrid networks and smart home systems will take place more in our lives in the future
One of the circuits widely used for dc voltage conversion in power electronics applications, reduce the input dc voltage at the rate of duty cycle
These types of converters are widely used in motor drive applications [1], electric vehicle charging stations [2], li-ion battery supplied application [3], led lamp driver applications [4], dc micro-grid applications [5], wind energy systems [6], photovoltaic systems [7], server applications [8]
Summary
W ITH THE widespread use of renewable energy sources, it is obvious that dc microgrid networks and smart home systems will take place more in our lives in the future. One of the circuits widely used for dc voltage conversion in power electronics applications, reduce the input dc voltage at the rate of duty cycle These types of converters are widely used in motor drive applications [1], electric vehicle charging stations [2], li-ion battery supplied application [3], led lamp driver applications [4], dc micro-grid applications [5], wind energy systems [6], photovoltaic systems [7], server applications [8].
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