Circuit Documentation

Summary

This document provides a detailed description of a circuit that includes a Negative Temperature Coefficient (NTC) thermistor, a resistor, an IRFZ44N MOSFET, a fan, and a 12V battery. The circuit is designed to control the fan based on temperature changes detected by the NTC thermistor.

Component List

1. NTC Thermistor (NTC)

   • Pins: A0, A1
   • Description: A thermistor used to sense temperature changes.
   • Purpose: To detect temperature variations and provide a variable resistance based on temperature.

2. Resistor

   • Pins: pin1, pin2
   • Description: A resistor with a resistance of 1000 Ohms.
   • Purpose: To limit the current in the circuit.

3. IRFZ44N MOSFET

   • Pins: Gate, Drain, Source
   • Description: A MOSFET used for switching and amplification.
   • Purpose: To control the fan based on the signal from the NTC thermistor.

4. Fan

   • Pins: GND, 5V
   • Description: A fan powered by 5V.
   • Purpose: To provide cooling based on the temperature detected by the NTC thermistor.

5. 12V Battery

   • Pins: +, -
   • Description: A 12V power source.
   • Purpose: To provide power to the circuit.

Wiring Details

NTC Thermistor (NTC)

• Pin A0 is connected to:

  • 12V Battery: Pin +
  • Fan: Pin 5V

• Pin A1 is connected to:

  • Resistor: Pin pin1
  • IRFZ44N MOSFET: Pin Gate

Resistor

• Pin pin1 is connected to:

  • NTC Thermistor: Pin A1
  • IRFZ44N MOSFET: Pin Gate

• Pin pin2 is connected to:

  • IRFZ44N MOSFET: Pin Source
  • 12V Battery: Pin -

IRFZ44N MOSFET

• Pin Gate is connected to:

  • NTC Thermistor: Pin A1
  • Resistor: Pin pin1

• Pin Drain is connected to:

  • Fan: Pin GND

• Pin Source is connected to:

  • Resistor: Pin pin2
  • 12V Battery: Pin -

Fan

• Pin GND is connected to:

  • IRFZ44N MOSFET: Pin Drain

• Pin 5V is connected to:

  • NTC Thermistor: Pin A0
  • 12V Battery: Pin +

12V Battery

• Pin + is connected to:

  • NTC Thermistor: Pin A0
  • Fan: Pin 5V

• Pin - is connected to:

  • Resistor: Pin pin2
  • IRFZ44N MOSFET: Pin Source

Code

No microcontroller code is provided for this circuit.