DONGGUAN XINGDONG ELECTRONICS CO., LTD.
Add: NO.2, Dagao Hengfeng 2nd Road, Changping Town, Dongguan, Guangdong, China
Tel：+86-769-83660708
Fax：+86-769-83660718
Email：info@d-fan.com.cn
URL：http://www.szdosense.com/eng/
"24V DC Cooling Fan" product TC642 style is a switch mode fan speed controller for controlling a brushless DC fan speed. Using pulse width modulation (PWM) to achieve proportional speed and temperature. We can enter the VIN pin connecting a thermistor (or other voltage output temperature sensor), provides the required 1.25V to 2.65V typical fan control voltage, and 0-100% duty cycle of the PWM we can control this, I think how to adjust how to adjust. These products can be a simple resistor divider VMIN input can be set to the minimum fan speed.