FAD1-12038CBLW32

DC Fans play an important role in maintaining the ventilation system of all kinds of electronic equipment, making them work in the best environment. FAD1-12038CBLW32 is one of the most common types of DC Fans. In this article, we will explore its application field and working principle.

Application Field

The FAD1-12038CBLW32 DC Fan is mainly used in areas where the aircraft\'s electronic systems (such as CPU, motherboard, etc.) need to cool and operate safely, such as computer mainboards, servers, workstations, industrial controllers, power storage devices, and various other information technology and industrial electronics products. In addition, it can also be used in automotive, military, marine and other fields.

It has many advantages over traditional AC Fan, such as wider working temperature range(-20℃~ +75℃), higher power efficiency, and less production noise. Moreover, its 18s delayed startup technology can prevent surge current and ensure longer service life.

Working Principle

The FAD1-12038CBLW32 is an electronically commutated DC Fan with brushless motor. The commutation and rotation of the motor are controlled by two pairs of semiconductor switches. When the power is turned on, the processor chip will detect the variation of the Hall effect sensor and output a three-phase PWM pulse to the driver circuit, and then rotate the motor in a specified direction through the speed regulation signal.

The speed and airflow of the fan can be adjusted through the speed control signal sent from the chip. It can work from a wide range of voltage (2.2V ~ 12V). When the fan is running, its magnetic field will interact with the current in the Hall element, and the voltage on the Hall element will be sampled, and the induced signal will be analyzed and then processed through the CPU. According to the result, PWM pulse will be re-outputted to the driver circuit to adjust the fan speed and airflow.

In addition, the FAD1-12038CBLW32 DC Fan is equipped with overtemperature protection circuit. When the temperature exceeds the specified range, it can accurately issue the signal, and then the fan speed can be automatically reduced or stopped for heat dissipation.

In summary, the FAD1-12038CBLW32 DC Fan is a high-performance cooling fan with a wide range of applications. Its special speed control technology and temperature protection circuit make it an ideal choice for automotive, military, marine vehicles, and other high-end equipment.