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DC Fans

DC fans, or direct current fans, are mainly used in places that require powerful and very precise air flow control. They are ideal for cooling applications in electronic equipment, such as computers, set-top boxes, air-conditioners, refrigerators, microwave ovens, game consoles, etc. DC fans use a motor of the brushless direct-current (BLDC) type for powering the fan.

A brushless DC (BLDC) fan is essentially a small, electronically controlled motor that is used to move air through the fan blades. A traditional brushless motor has a stator, which is a set of coils with poles that generate a rotating magnetic field and a rotor that is comprised of permanent magnets. As the stator’s magnetic field rotates, it interacts with the rotor’s magnets, pushing them in the appropriate direction and allowing the motor to turn. The BLDC motor can be adjusted to control the speed and power of the fan. This allows for precise control of the air flow rate and volume. The DC fan also uses a fan controller to adjust the output power of the fan and thus can provide more accurate cooling.

The working principle of a DC fan is similar to that of an AC fan, which consists of blades that rotate in order to blow air through the fan. However, a DC fan uses the DC power from a power supply to spin the blades, which thus produce the air flow. The DC fan also uses a fan controller to adjust the power output of the fan for optimal cooling. The fan controller is usually integrated into the fan housing, and can be adjusted by the user for the desired speed and air flow level.

DC fans are increasingly becoming popular as they provide more precise cooling, require less power, and are more efficient. They are an ideal choice for applications where a consistent and controlled air flow is needed. Additionally, DC fans are also lightweight and come in a variety of sizes and shapes, so they can be fitted to almost any application.

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