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QFR0812DE-F00 DC Fans

DC Fans are a type of electric motor characterized by the use of direct current instead of alternating current. As the name suggests, these fans use direct current, as opposed to alternating current, for power and operation. By using direct current, more efficient air circulation and cooling is achieved. Because of this, DC fans enjoy a wide range of applications. The QFR0812DE-F00 is just one example of a DC fan.

Application Field

The QFR0812DE-F00 DC fan is a powerful, high-performance fan designed to provide reliable cooling in a variety of circumstances. Its primary use is to cool the interior of electronic equipment or devices, including computers and laptops. It can also be used to cool larger devices, such as medical instruments, machine control systems and communications radios. It is also suitable for industrial environments such as ventilation systems, engine cooling fans and large air handlers.

The QFR0812DE-F00 is designed to be used in humid and dusty environments and can operate at temperatures as low as -20°C and as high as +50°C. It is also IP55 rated, meaning it is dust and water proof, making it suitable for harsh environments.

Working Principle

The QFR0812DE-F00 DC fan operates using direct current. This makes it more efficient than traditional AC fans, as direct current allows for higher speeds and better control over the speed of the fan. Direct current also eliminates the need for a physical switch, making it more reliable.

The fan is powered by a DC brushless motor that is controlled by an analog, pre-programmed controller, which allows for the speed of the fan to be adjusted. The controller is connected to a power source, usually 12VDC. A Hall sensor is used to detect the position of the rotor and adjust the speed as required. The RPM (Revolutions Per Minute) is adjustable using either a potentiometer or a voltage input.

The controller also helps protect the fan from overloads and shorts, ensuring the fan runs safely and effectively. The fan features a PWM (pulse width modulation) control which enables the fan to be automatically adjusted to match varying loads.

Conclusion

The QFR0812DE-F00 is a powerful DC fan that is designed for a variety of different applications. It is efficient, reliable and capable of operating in challenging environments. The fan is powered by a brushless motor that is controlled by an analog pre-programmed controller and is adjustable using a potentiometer or voltage input. Additionally, it features PWM control and overload protection which enables it to run safely and effectively.

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