OD3506-12MSS

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DC Fans are used for a wide range of indoor or outdoor cooling applications. The OD3506-12MSS is a brushless DC fan, which offers many benefits over traditional brush fans, such as increased efficiency, reliability, and quieter operation. In this article, we’ll discuss the application field and working principle of the OD3506-12MSS, so that potential customers can better understand it and determine if it’s the right cooling solution for their needs.

Application Field of OD3506-12MSS

The OD3506-12MSS is well-suited for cooling applications which require a moderate airflow and static pressure. It is often used in IT server rooms, medical equipment, musical instruments, industrial machines, and many other electronic equipment. It has a rugged construction, making it able to withstand harsh environments, and its high EMI rating ensures that it won’t produce unwanted noise or interference.

The fan is also capable of operating at a wide operating temperature of -25ºC to +70ºC. This makes it suitable for a range of different applications, both indoors and outdoors. The fan has a wide speed range of 5-7500 RPM and a wide speed range control option, which helps to manage noise levels and optimize airflow.

Working Principle of OD3506-12MSS

The OD3506-12MSS is a brushless DC fan, which means that it uses a permanent magnet motor instead of a brush motor. In a brush motor, electrical power is provided to the armature via a series of carbon brushes, which contact the rotating commutator segments. This produces electrical sparks, which wear out the brush and commutator over time. In contrast, a brushless DC fan produces electricity through an electromagnet within the stator, and this electricity is then routed through the wiring to the rotor. This eliminates the need for brushes, which reduces wear and improves efficiency and reliability.

The OD3506-12MSS also uses a Hall-effect feedback circuit to detect the position of the rotor within the stator. This circuit is connected to two Hall sensors, which detect the rotational magnetic field of the stator. If the rotor moves away from its normal position, the sensors will detect the change in the magnetic field and adjust the speed and torque to maintain efficient, reliable operation.

In addition, the fan has an integrated tachometer output, which is used to measure the speed of the fan. The tachometer output is connected to an opto coupler, which transmits a signal to the system controlling the fan’s speed. This signal is used to match the speed of the fan to the system’s performance requirements, helping to further maximize efficiency.

Overall, the OD3506-12MSS is a compact, reliable, and efficient fan. Its brushless motor eliminates the need for wear-prone brushes, and its integrated tachometer output ensures that the speed and torque are always precisely adjusted for efficient operation. This makes it well-suited for a variety of cooling applications, both indoors and outdoors.

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