OD4020-12HHB01A

DC Fans are one of the most widely used and versatile types of fans available. The OD4020-12HHB01A is a DC fan with a number of features that make it an attractive choice for applications such as cooling electronic components and devices. This article will examine the OD4020-12HHB01A’s application field and working principle.

The OD4020-12HHB01A is a brushless DC fan that is designed for cooling applications in computers, servers, telecommunications, and other electronic devices. It features a 40 x 40 x 20mm frame size and is rated for 48V DC input voltage. The fan is designed to provide air flow of up to 7.6CFM with noise levels of 21.2-26.2dBA. The fan also features a low start-up voltage of 5.45V, which allows it to be used in a wide range of applications where the power supply may not have enough voltage to start the fan.

The OD4020-12HHB01A fan uses a 4-pole brushless DC motor to generate air flow. The brushless motor consists of a stator with multiple coils and a rotor with multiple magnets. The rotation of the rotor is controlled by an electronic circuit, which is powered by a DC voltage source. The rotor is driven by the interaction between the rotating field created by the electric current in the coils and the stationary magnets on the rotor. This creates a torque which causes the rotor to spin and thereby generates air flow.

The electronic control circuit is designed to maintain a constant speed of the motor, regardless of the load on the rotor. This helps to ensure the fan runs reliably and efficiently under various conditions. The control circuit also helps to reduce noise, vibration, and power consumption which makes the fan more attractive for various applications. The fan also features a PWM input that allows users to control the speed of the motor, allowing for precise speed changes at different loading conditions.

The OD4020-12HHB01A fan is a versatile and reliable choice for cooling electronic components, devices, and servers. Its brushless DC motor allows for reliable operation while the electronic control circuit helps to ensure smooth and efficient operation even under varying conditions. The PWM input also allows for precise speed adjustment under different loading conditions, making it a great choice for a wide range of applications.