Design of DC Voltage Regulator Controlled by Boost Converter Close Loop System with Static Load using PSIM Abdil Jabbar Asyadili 1) , Rodhi Kelvianto 2) , Muhammad Taufiq Ramadhan3 ) , Imam Robandi 4) Department of Electrical Engineering, Faculty of Industrial Technology, ITS, Kampus ITS Sukolilo, Surabaya 60111, Indonesia. 1) abdiljabbar071@gmail.com; 2) rodhi.kelvianto@yahoo.com; 3) atreides_03@yahoo.com; 4) robandi@ee.its.ac.id. Abstract - The Boost Converter has known for many years and applied on industries, which commonly used in open loop system to raise the voltage level. By adjusting the set point, we could determine the amount of the desired output voltage on the static load. However, the switch influence cause on ripple voltage and current. Then, we need a closed-loop system that can minimize the ripple. The research of Boost Converter in close loop system, give a better result. By installing the PID controller in feedback system, we could improve the performance of Boost Converter close loop system. The analysis of these system using PSIM software. Keywords: Boost Converter, PID controller. I. INTRODUCTION The Boost Converter is one of many type DC to DC converter. Boost Converter has known for many years and applied on industries, which commonly used in open loop system to raise the voltage level. Boost converter circuit is capable of providing an output voltage higher than the input voltage. By adjusting the set point, we could determine the amount of the desired output voltage on the static load. II. BOOST CONVERTER Boost converter circuit is capable of providing an output voltage higher than the input voltage. The basic formula of Boost Converter shown as [1] : Vout = Vin . 1 (1) 1 – k Vout = Output voltage to the static load Vin = Input voltage from the battery k = Duty Cycle = t on / ( t on + t off ) 2.1. Boost Converter in open-loop system 2.2. Boost Converter in close-loop system 2.3. Boost Converter in close-loop system with PID