Device, method and system for controlling rotation

专利名称：Device, method and system for controlling

rotation speed of motor

发明人：Yongyuan Yang,Yuanhao Liu,Dongming

Zhang,Zhijia Wang

申请号：US14171520申请日：20140203公开号：US09112446B2公开日：20150818

专利附图：

摘要：The present application discloses a device, method and system for controlling arotation speed of a motor. The device includes: a reference voltage generating module

generating a reference voltage; a PWM signal converting module converting a PWMsignal into a voltage signal; a first comparator outputting a first level or a second level; afirst switching element having a control terminal connected with an output terminal ofthe first comparator and a first terminal input with a first signal, and being turned onwhen receiving the second level and being turned off when receiving the first level; afollower having an input terminal connected with the PWM signal converting module; anda control signal outputting terminal outputting the first signal or the voltage signal. Thedevice, method and system are capable of controlling the rotation speed of the motor tojump at a specific duty cycle.

申请人：DELTA ELECTRONICS (DONGGUAN) CO., LTD.

地址：Dongguan CN

国籍：CN

代理机构：Eaton & Van Winkle

代理人：Yunling Ren

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