Method for controlling fan start-up and fan
A technology for fan and start-up phase, applied to the start-up control method of three-phase fans in the start-up phase and the field of fans, which can solve problems such as wind noise and achieve the effects of saving power, reducing start-up noise, and reducing fan speed overshoot
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[0043] The fan start control method and the fan according to the preferred embodiments of the present invention will be described below with reference to the related drawings, wherein the same elements will be described with the same reference symbols.
[0044] Please refer to figure 2 , Figure 3A to Figure 3E , figure 2 It is a schematic block diagram of a fan in a preferred embodiment of the present invention. Figure 3A It is a schematic diagram of the working cycle, noise and rotational speed of the preferred embodiment of the present invention. Figure 3B to Figure 3E for Figure 3A A schematic diagram of the first driving signal S1 having different reduction modes.
[0045] Please refer to figure 2 , the fan 20 includes an impeller 21, a motor 22 and a control circuit 23; wherein the motor 22 is a three-phase motor, and is respectively connected to the impeller 21 and the motor to be electrically connected to the control circuit 23, and drives the impeller accor...
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