| 摘要 |
<p>A device and a method of fan speed regulation comprise: an electrical level conversion unit used for carrying out electrical level conversion on an input control signal, and a switch control unit used for controlling the power of the fan to switch-on or break according to the signal outputted by the electrical level conversion unit. The device and method are easy to realize, with low power consumption and low cost, and can achieve multiple rotating speed gears which can accurately regulate the speed and obtain good effect according to need.</p> |
