Abstract :
At the moment the application of DC-DC Converter has allowed the electronic
appliance to function using a small battery energy source and the output voltage can
be personalised as desired. The existence of this design can regulate the magnitude of
the output voltage and know the efficiency of the design Build buck converter.
In this study, Buck Converter sought an output voltage by changing the duty
cycle from 12V voltage. PWM frequency setting to change the duty cycle value using
the TCCR1 listing program on the Arduino IDE.
By using a duty cycle adjustment is inserted by 30%-60% The resulting
microcontroller, resulting in output voltage 4, 5V-7, 4V. Then, the output voltage is
measured using the current sensor and the voltage displayed on the LCD. The results
of the voltage test vary in output resulting in maximum efficiency by 84%