What is a temperature-controlled cooling fan?

Temperature-controlled cooling fan, as the name suggests, is the use of temperature to control the cooling fan, the principle is: sensing the high rise in temperature around the cooling fan thereby increasing the cooling fan speed colleagues increased air flow (air volume), is based on the use of thermistors to detect the temperature, installed in the cooling fan hub sensor can detect the temperature through the cooling fan, in such a configuration, must be completely installed this fan. After installation, the thermistor sensor can be sensed by a special connection cable.

Temperature-controlled cooling fans run at a speed that changes with the temperature, and in the case of temperature-controlled cooling fans running at a slower speed, only a lower noise level and low power consumption are produced.

Of course we need to pay attention to when choosing to use temperature-controlled cooling fans.

1. The choice of temperature-controlled cooling fan must be able to provide enough speed to cool the hot air inside the device at high temperatures, when the temperature of the hot air is relatively low or less hot airflow when the fan is doing reverse work.

2. In the installation of the inductor to ensure that it can be placed in the appropriate location, try to make the inductor can be directly clamped on the surface to be dissipated, in operation if the heating temperature is high, the regulator will feel the temperature-controlled cooling fan in accelerated operation. And at lower temperatures, the fan speed will hardly change, the response time depends on the length of the sensor and its thermal sensitivity.