Sanyo DC fans are DC fans from the Japanese brand Sanyo. This type of cooling fan is multifunctional and widely used in our daily production and life. Today, SanAce fan distributors will give you a detailed introduction to the functions of Sanyo DC fans.
1. Automatic Restart
When the fan is locked, its operating current is automatically cut off, and the fan operates at a low current, thus protecting it from high current. And burn out; another function of Auto Restart: the fan automatically outputs a signal to start the fan at regular intervals. When the fan is not in the locked state, the fan will be restarted and run normally.
2. FG (Frequency Generator) signal / speed signal Output
The square wave output we often talk about mainly functions to output a square wave signal from inside the fan. The frequency of the signal represents the fan speed. For a standard four-pole fan: speed = FG frequency * 30. In other words, the fan speed can be read by reading the FG signal. .
3. Ration Detector (RD) function
The RD function is also known as the Alarm signal. RD is low when the fan is running and high when the fan is locked. The fan is checked for normal operation or locked status by monitoring the RD signal level.
4. Temperature control function
Through thermistor The ambient temperature during fan operation is monitored, and the fan speed is adjusted accordingly based on the temperature to achieve energy saving and noise reduction.
5. PMW (Pulse Width Modulation) speed control function
PWM stands for Pulse Width Modulation. It refers to a pulse signal... With a fixed frequency (period), the fan speed can be changed by altering the on-time and off-time of the pulse signal, thereby achieving energy saving and noise reduction.
6. Voltage signal speed regulation
Input a variable voltage signal This is used to change the fan speed, thereby achieving energy saving and noise reduction.
