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Journal : Journal of Educational Engineering and Environment

Analysis of Transformer Using Flyback Converter Circuit Ahmad Syarip Hidayatulloh; Rizki Idul Fitriansyah; Sandi Apriliyanto; Bayu; Ahmad Tubagus Zatin; Achmad Choirul Anwar; Andre Ramadhan; Alvin Mei Arisandi; Adi Mulyadi
Journal of Educational Engineering and Environment Vol. 2 No. 1 (2023): Journal of Educational Engineering and Environment
Publisher : Fakultas Teknik Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jeee.v1i2.2356

Abstract

This paper discusses two types of transformers 3 A and 5 A with the addition of a flyback converter circuit. The transformer 3 A is only able to lower the DC output voltage and cannot produce an AC output voltage. So that the addition of a flyback converter circuit is proposed to change the AC output voltage and increase the voltage based on the desired load. The results of the 3 A transformer test obtained an increased output voltage from 12.21 Vdc to 18.04 Vdc with a constant time period of 1 minute. While testing the 5 A transformer shows that the increase in output voltage is obtained by adding a flyback converter circuit. The result of the output voltage with the addition of a flyback converter circuit reaches 221 Vac to 252.2 Vac. The increase in output voltage is directly proportional to a constant time period of one minute.
Electric-Based Vehicle Control System with Modified Half-Wave Rectifier Circuit to Increase Battery Power Efficiency Firmansah, Arif; Mulyadi, Adi
Journal of Educational Engineering and Environment Vol. 2 No. 2 (2023): Journal of Educational Engineering and Environment
Publisher : Fakultas Teknik Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jeee.v2i2.3465

Abstract

This paper discusses electric-based vehicle control systems. Electric vehicle charging stations are only capable of charging based on slow, medium, fast, ultra fast charging and are not equipped with an overcharge system. So a control system is proposed for overcharge protection of battery current and voltage. The control system is modified with a half wave rectifier circuit to increase battery power efficiency. Method of modifying a half wave rectifier circuit with IC LM 7812 and capacitor. The results of the circuit modification show that the battery power is 7.96 w, 7.26 w, 6.60 w, 5.94 w, 5.24 w at varying input voltages of 220-200 Vac, and the efficiency is 0.87%-0.86% at an input voltage of 190-180 Vac. Meanwhile, the battery power is 7.96 w at an input voltage of 230 Vac and the efficiency is constant at 0.87%. The application of a control system can increase the efficiency of electricity-based vehicle batteries at a constant input voltage.