BLDC Temperature controlled fan using Arduino ! BLDC Protection system using Arduino project

#bldcmotor #arduinoprojects #btechprojects
Contact for project -
PROJECTRONICS www.projectronics.in
Buy here - https://projectronics.in/products/bldc-temperature-controlled-fan-using-arduino-with-protection/
Other electrical projects - https://www.youtube.com/watch?v=dKZ8IDoNfk0&list=PLp45IQls-6QfTfBXmmz5IwZWxExT-oJA-

We ll provide 50 pages of pdf and 20 pages pf PPT as a soft copy

What you have to arrange -

1. 24x18 inch any hardsheet - 1
2. Glue gun and stick - 1
3. 100watt Bulb - 1

More projects - www.projectronics.in

Abstarct - The system architecture revolves around an Arduino Uno microcontroller that processes inputs from multiple sensors and controls the AC fan through phase-angle triggering of a TRIAC. The temperature sensor connected to analog pin provides precise temperature readings with 10mV per degree Celsius output, which the Arduino converts to actual temperature values through analog-to-digital conversion. The zero crossing detector circuit, connected to interrupt pin , generates a pulse at every zero crossing of the AC mains waveform (occurring every 10ms for 50Hz systems), which triggers an interrupt service routine that sets a flag for TRIAC firing. Based on the temperature reading, the Arduino calculates the required fan speed using a linear mapping function where temperatures between 20°C and 40°C correspond to fan speeds ranging from 10% to 100%. The calculated delay angle, inversely proportional to desired speed, determines how long after zero crossing the TRIAC receives its gate pulse through the MCT2E optoisolator. The voltage sensor continuously monitors the AC mains voltage with a 0-5V input range mapped to 0-300V actual, triggering an over-voltage fault and activating the buzzer if readings exceed 250V. Similarly, the power sensor on pin A3 monitors consumption with 0-5V corresponding to 0-20W, activating protection if power exceeds 10W. The LCD display, interfaced through pins 2-7, updates every 500ms showing current parameters. During fault conditions, the TRIAC firing is immediately stopped, the buzzer activates for 3 seconds, and fault messages appear on the display until conditions normalize with built-in hysteresis. The system employs volatile variables for interrupt-safe communication and includes debouncing mechanisms for reliable zero-crossing detection, ensuring smooth and accurate fan speed control while maintaining complete electrical isolation between control and power circuits.

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Видео BLDC Temperature controlled fan using Arduino ! BLDC Protection system using Arduino project канала PROJECTRONICS