Design and Evaluation of Quadratic Buck Converter

Power electronic systems are circuits that switch to process power cyclically. Their function is to transform irregular input power into controlled output power. Various types of converters are used, depending on the input and output voltages. In DC switching-mode power supply and electrical DC motor drives, DC-DC converters are employed. Power factor correction circuits employ AC-to-DC rectifiers. DC-to-AC inverters are used in uninterruptible power supply and electrical AC motor drives. AC-to-AC cycloconverters, on the other hand, are used to convert frequencies from one level to another. In industrial applications, power electronics help productivity and product quality improvement. With the advancement of technology, the cost decreases, the size becomes compact, and the device's performance improves. Again, power electronics are increasingly essential in renewable energy generation, utility system energy storage, and electric vehicles. In this, we have designed and evaluated the Quadratic Buck Converter which is characterized by a voltage conversion ratio that is equivalent to the square of the duty cycle. Due to its ability to achieve significant voltage step-down, the QBC finds substantial application in DC-DC converters, particularly in areas where a significant reduction in voltage is needed, such as in modern automobiles. The simulation results of QBC and conventional Buck Converter are compared to verify the accuracy of the obtained model.