International Journal of Microelectronics and Digital integrated circuits
4-Channel Relay Driver Circuit and PCB Design
Abstract
Relay means “the act of passing something from one thing to another” the same thing can beapplied to devices because the signal received from one side of the device controls theswitching operation on the other side. So relay is a switch which controls (open and close)circuits electromagnetically. Relays plays an important role in protection of power systemand are frequently used in our electronic applications especially when we need to drive highloads using Arduino and digital microcontroller circuits. So in this project I have made a 4-Channel Relay Driver Circuit which can be used in relay based applications. Also I havedesigned an isolated Printed Circuit Board for 4 relays to operate 4 AC appliancessimultaneously at a time.Keywords: Arduino, controls circuit electromagnetically, digital microcontroller, relay, 4-channel relay, printed circuit boardReferences (3)
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