12 V Fan Controller Board using NTC and Op-Amp (Assembled)
This assembled board is designed for temperature-controlled fan operation using an NTC thermistor and op-amp-based control circuit. Fan speed varies automatically with temperature.
Working Voltage:
Input supply: 12 V AC, 1 A to 2 A (step-down)
Fan output voltage: 12 V DC
Current Capacity:
Maximum fan current: up to 1 A
Control Mechanism:
Temperature sensing using NTC thermistor
Fan speed increases with temperature rise
Preset (R7) provided for adjusting idle fan speed
Installation:
NTC thermistor should be placed on the heatsink or temperature source for accurate sensing
Board Specifications:
PCB dimensions: 55 mm × 33 mm
Construction:
Fully assembled board
Uses through-hole components
Configuration:
Ready to use with external fan and power supply
Performance depends on proper installation and thermal contact of NTC
Intended Use:
Cooling control for amplifier heat sinks
Temperature-based fan control in power electronics
