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    • 1. 发明授权
    • Fan control system using a microcontroller
    • 风扇控制系统采用微控制器
    • US06779981B2
    • 2004-08-24
    • US10193790
    • 2002-07-12
    • Wen-Shi HuangKuo-Cheng LinHsu Kuo SungShou Te Yu
    • Wen-Shi HuangKuo-Cheng LinHsu Kuo SungShou Te Yu
    • F04B4900
    • F04D27/004F01P7/048G06F1/206H02P7/29H05K7/20209
    • A fan control system. The fan motor is operated normally at not greater than a preset maximum rotation speed. The fan control system has a programmable microcontroller to receive an input voltage and a rotation speed signal corresponding to the actual rotation speed of the fan motor, determining an output signal according to the input voltage and the rotation speed signal, and outputting the output signal; and a fan-driving unit to receive the output signal and adjusting the rotation speed for driving the fan motor according to the output signal. When the rotation speed is lower than a predetermined rotation speed, the rotation speed is in a relation of a first function to the input voltage; when the rotation speed is greater than the predetermined rotation speed, the rotation speed is in a relation of a second function to the input voltage. The first function and the second function are separate mathematical functions, and a first maximum voltage obtained from the maximum rotation speed in the relation of the first function is lower than a second maximum voltage obtained from the maximum rotation speed in the relation of the second function.
    • 风扇控制系统。 风扇电机在不大于预设的最大转速的情况下正常运行。 风扇控制系统具有可编程微控制器,用于接收与风扇电动机的实际转速相对应的输入电压和转速信号,根据输入电压和转速信号确定输出信号,并输出输出信号; 以及风扇驱动单元,用于接收输出信号并根据输出信号调节用于驱动风扇电动机的转速。 当旋转速度低于预定旋转速度时,转速与第一功能与输入电压成关系; 当旋转速度大于预定旋转速度时,旋转速度与第二功能与输入电压成关系。 第一功能和第二功能是分开的数学函数,并且从第一功能的关系中的最大转速获得的第一最大电压低于从第二功能的关系中的最大转速获得的第二最大电压 。
    • 2. 发明授权
    • Self-stabilizing heat exhaust system
    • 自稳排热系统
    • US06501648B2
    • 2002-12-31
    • US09859420
    • 2001-05-18
    • Wen-Shi HuangKuo-Cheng LinShou-Te YuMing-Shi Tsai
    • Wen-Shi HuangKuo-Cheng LinShou-Te YuMing-Shi Tsai
    • H05K500
    • G06F1/206F24F11/77
    • The present invention discloses a self-stabilizing heat exhaust system including at least several rate-variable fans. Each of the rate-variable fans further includes a power-input terminal for inputting power to the rate-variable fans; a grounded terminal for providing the rate-variable fan a lower level; a signal-output terminal coupled to an adjacent rate-variable fan for outputting a speed signal which may be a normal signal or an abnormal signal; a signal-input terminal coupled to another adjacent rate-variable fan for receiving the speed signal; and a control circuit responding to the abnormal signal to make the rate-variable fan rotate at the higher rotation rate and responding to the normal signal to make the rate-variable fan rotate at the lower rotation rate.
    • 本发明公开了一种自稳定排热系统,其包括至少几个速率可变的风扇。 每个速率可变风扇还包括用于向速率可变风扇输入电力的电力输入端子; 用于向所述速率变量风扇提供较低电平的接地端子; 耦合到相邻速率可变风扇的信号输出端子,用于输出可以是正常信号或异常信号的速度信号; 耦合到另一相邻速率可变风扇的信号输入端子,用于接收速度信号; 以及响应于异常信号的控制电路,使变速风扇以较高的转速旋转,并响应于正常信号,使变速风扇以较低的转速旋转。