Dc fan speed control

Fan operation is changed by the condition of the heat, operating at a slower speed, the noise of fan will produce less and consume less energy.

In most of the design requirements, the fan speed running hours after the air temperature is usually lower than the design of the maximum temperature value. Usually, low speed of cooling fan can work enough to finish it. But also should consider when choosing and installation:

First of all, the choice of the fan must provide enough (speed), exhaust air cooling equipment under high temperature condition inside the hot air; When the temperature is lower and the heat flow is less time to do instead of work.

Secondly, on the sensor installation position should be paid attention to when the choice, the sensor in place, can make the sensor directly clamped on the surface of need cooling. In operation, a temperature control fan, if feel thermistor temperature is higher when operating at a rapid speed; And the temperature is lower, will be operating at low speed; In the middle of the high and low, the fan speed will almost will not change by temperature

Fan of the temperature change is slow, the fan speed change is slower, not suddenly change fan speed and noise. The length of the reaction time mainly depends on its sensor for thermal sensitivity.