Programmable DC-DC Buck Converter

Abstract

Abstract: Design of the power electronics circuitry are now-a-days reducing the size, space and weight of converter and inverter circuits. This is possible because of the availability of new high switching frequency devices. This paper presents a generalized model of buck converters that is programmable. The converter used for stepping down the voltage is called buck converter. Buck converter is designed, analysed, simulated & developed. The proposed model of this Buck converter consists of two parts: (a) Main converter circuits with the components like switch, inductor, diode, capacitor, and a load, (b) A control circuit for controlling the operation of the switch using microcontroller through digital potentiometer. This model can accurately give the power output voltage up-to three decimals.