FPGA Controlled DC-DC Buck Converter

This paper describes a complete digital controlled DC-DC buck converter performed by Field Programmable Gate Array (FPGA) circuitry. All tasks as are Analog to Digital conversion (A/D), control algorithm and Pulse Width Modulation (PWM) were implemented in the (FPGA). This methodological enables high speed dynamic response and programmability of the controller without external passive components and more the controller structure could be changed from linear to non linear easily, also without external components. The applied algorithm enables the switching frequency of 100 KHZ.