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Abstract: Automatic Battery Charger is designed for 12V sealed lead-acid batteries. The designed device consists of a circuit, which performs charging of the charging unit. Charging unit consist of 6 battery drovers which can be charged simultaneously. Each battery is provided with the driver circuit, transformer and power supply module. Power supply module is equipped with thermal analysis and protection for EMI/EMC issues. Once the battery is inserted circuit displays battery charging condition whether it is fully charged or half charged or fully discharged when the Battery is inserted. It also displays the damage battery. Battery charging level is displayed by LEDS. LCD is used to adjust battery voltage and current manually through keypad 4*4. Battery type and left time are displayed on screen during charging on LCD. PIC 18f452 Microcontroller continuously monitors the battery condition and displays on LCD. Charging stops when battery is fully charged and the buzzer blows, LED glows and with the help of DC motor the battery comes out and the connection is opened. This is advantageous as it prevents the battery from damage and over charging. In the front panel of charger there are 6 buttons, LCD, keypad and 6 LEDs. Facility of fast charging and slow charging is provided as per the need. Main charger circuit is constant current-constant voltage charging method.
Keywords: Lead Acid Battery, PIC 18f452, L298, LCD, Keypad, DC motor
How to Cite:
[1] MR. V. KRISHNAMURTHY, RASHMI VARMA, SONALI TRIBHUVAN, AFRIN SHAIKH Director(Scientist D), Electronics Design Technology, NIELIT, Chennai, India Student(M-tech), Electronics Design Technology, NIELIT, Aurangabad, India Student(M-tech), Electronics Design Technology, NIELIT, Aurangabad, India Student(M-tech), Electronics Design Technology, NIELIT, Aurangabad, India, βAutomatic Battery Charger,β International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
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