The authoritative expert of the cooling fan knows that if we disassemble the motor of the DC cooling fan, we can see that the DC cooling fan is a variable frequency motor, which can be identified from the position of the electromagnetic coil.
The inverter motor control circuit board and the control chip integrate the DSP function and the driver equipment to simplify the power circuit construction. The motor speed can be changed according to the programming of the power supply chip.
Everyone has wood that has such confusion. The notebook has been used for a long time, the notebook will be slow, the network will change, and there is no problem in viewing the network. So where is the problem?
In fact, it is also a computer cooling problem. When the notebook is turned on for a long time, the temperature will rise. Especially in summer, if the temperature is too high, the connector will identify the fatigue and then slow down. To alleviate this problem, a DC fan can be completely solved for the notebook.