TY  - JOUR
T1  - Design, Development and Simulation of a Microcontroller Based Automatic Electrical Mains
Changeover System
AU - Islam, M.N. AU - Akhter, H. AU - Begum, M. 
JO  - International Journal of Electrical and Power Engineering
VL  - 13
IS  - 4
SP  - 61
EP  - 64
PY  - 2019
DA  - 2001/08/19
SN  - 1990-7958
DO  - ijepe.2019.61.64
UR  - https://makhillpublications.co/view-article.php?doi=ijepe.2019.61.64
KW  - Automatic transfer switch
KW  -switching transistors
KW  -relays
KW  -PIC microcontroller
KW  -MPLAB IDE
AB  - Design, development and simulation of an
automatic Electrical Mains Changeover System (EMCS)
using PIC microcontroller (μC) has been presented in this
study. The system consists of 18-pin DIP package
enhanced flash microcontroller PIC16F84A with 4 MHz
crystal used as main processor, two switching transistors,
two relays and Low Voltage Power Supply (LVPS). The
electrical mains control signal output at RB0 and RB2 of
PortB actuate two switching transistors which drive two
relays to operate the loads depending on the availability of
mains or backup power source. An assembly language
program based on MPLAB IDE has been developed to
control the operation of the system. The design and
verification of the PIC μC based EMCS in Proteus 7.7
simulation platform has been completed successfully.
ER  -