• Musaib Ibni Bashir Dar
• Shilpa Acharya
• Chethan K P
• Arathi N
• Gowtham M

Integral cycle switching, facilitated by Arduino and IoT technologies, offers precise control of AC voltage, targeting the modulation of light bulb intensity and AC motor speed. The method involves manipulating complete cycles of an AC signal to achieve the desired outputs. A comparator is employed for zero crossing detection, which sends triggers to an Arduino. These triggers are then used to generate pulses that control opto-isolators, effectively driving a TRIAC for accurate cycle control based on user inputs interfaced with the microcontroller. The power supply configuration includes a step-down transformer, a bridge rectifier, a capacitive filter, and a voltage regulator to ensure stable operation of system components. A lamp is utilized in the setup to visually demonstrate the output, highlighting the ability to maintain load activation at the zero crossing of the voltage waveform, despite random switching. The focus is on validating the effectiveness of the voltage control strategy and examining potential waveform imbalances resulting from the switching technique. The approach demonstrates a scalable method for AC power control, applicable to various industrial and domestic applications requiring precise voltage adjustments.

IoT (Internet of Things), Arduino UNO, Zero Crossing Detection, AC Voltage Control

"IOT and Arduino based AC Voltage Control", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 5, page no.g603-g609, May-2024, Available :http://www.jetir.org/papers/JETIR2405674.pdf

"IOT and Arduino based AC Voltage Control", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 5, page no. ppg603-g609, May-2024, Available at : http://www.jetir.org/papers/JETIR2405674.pdf