Simulation and analysis of a buck converter based on an arduino PWM signal using a single cell li-ion load

Wing Wira Adimas Ramadhan, Tomy Abuzairi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

This paper presents a simulation of a buck converter using pulse-width modulation (PWM) signal frequencies and duty cycles generated by an Arduino microcontroller for solar panel application. The frequencies used are 23 kHz, 62.5 kHz, 92 kHz, and 186 kHz. A circuit is composed from the results of calculating the buck converter design needed to operate with continuous current mode at minimum value of the component needes. Load used in the circuit is a single Li-ion cell which has a voltage of ~4.2 V, with a simulated panel specifications are 18.36 V and 0.56 A. The I-V characteristics of the converter are studied at input and output in changes of duty cycle and frequency to obtain the overall operating characteristics for each frequency. Overall, the panel current increases before the peak power voltage and decrease after. A peak current of ~1150 mA occurs at frequencies of 23 kHz, 62.5 kHz, 92 kHz, and 186 kHz for duty cycles of 50%, 35%, 35%, and 20%, respectively. Thus, 23 Khz PWM signal is the optimal frequency to drive the circuit beecause of the wide duty cycle operation. In addition, the values of both input current and voltage increase along with the duty cycle rate according to the character of the corresponding I-V curve.

Original languageEnglish
Title of host publication2019 16th International Conference on Quality in Research, QIR 2019 - International Symposium on Electrical and Computer Engineering
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728118987
DOIs
Publication statusPublished - Jul 2019
Event16th International Conference on Quality in Research, QIR 2019 - Padang, Indonesia
Duration: 22 Jul 201924 Jul 2019

Publication series

Name2019 16th International Conference on Quality in Research, QIR 2019 - International Symposium on Electrical and Computer Engineering

Conference

Conference16th International Conference on Quality in Research, QIR 2019
Country/TerritoryIndonesia
CityPadang
Period22/07/1924/07/19

Keywords

  • Arduino fast PWM signal
  • Buck converter
  • Continuous current mode
  • Li-ion battery
  • PWM signal
  • Solar Panel

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