1. Field of the Invention
Embodiments of the present disclosure relate to cooling fans, and more particularly to a fan control circuit.
2. Description of Related Art
An electronic device usually requires cooling of the power supply or one or more components of the device. Traditionally, a fan may be used to cool the device where continuous rotation of the fan dissipates unwanted heat away from the device. A fan usually continuously rotates whenever the power supply of the equipment body is turned on, which may lead to undesired results. Unwanted noise from the fan rotation may be present in an environment where quietness is required. Additionally, continuous rotation of the fan will inevitably lead to accelerated deterioration in the equipment.
What is desired, therefore, is to provide a fan control circuit which controls the rotational speed of the fan to efficiently dissipate heat.