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2019-03-26

[know no] dc fan and ac fan cooling what is the difference?

1. Working principle: The working principle of the DC cooling fan: through DC voltage and electromagnetic induction, electrical energy is converted into machinery to drive the blades to rotate. Relying on the coil and IC to switch continuously, the induction magnetic ring drives the blades to rotate. The working principle of AC fan: driven by AC power supply, the voltage will be positive and negative alternating, and it does not rely on circuit control to generate a magnetic field. The power frequency is fixed, and the magnetic pole change speed generated by the silicon steel sheet is determined by the power frequency. The higher the frequency, the faster the magnetic field switching speed, the faster the rotation speed will theoretically be. However, the frequency can not be too fast, too fast will cause difficulty in starting. 2. Structure group

[know no] dc fan and ac fan cooling what is the difference?
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JSL Fan

Contact: Mr. Bao
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