Fan system and motor control device

Fan system and motor control device

  • CN 101,372,984 B
  • Filed: 08/22/2007
  • Issued: 04/03/2013
  • Est. Priority Date: 08/22/2007
  • Status: Active Grant
First Claim
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1. fan system comprises:

  • One control end device comprises a first node;

    One tach signal circuit for generating is electrically connected on this first node, and a speed controling signal is provided;

    And a rotating speed reading circuit, be electrically connected on this first node, in order to receiving a motor rotary speed signal, and obtain the actual speed value of a motor;

    AndOne fan end device comprises a Section Point, is electrically connected on this first node, and and this first node between form a transmission path;

    One signaling conversion circuit is electrically connected on this Section Point, and this transmission path receives this speed controling signal certainly, and this speed controling signal is converted to a fast voltage signal of control and output;

    And one drive circuit, be electrically connected on respectively this Section Point and this signaling conversion circuit, control fast voltage signal in order to receive this, and control fast voltage signal according to this, produce this motor rotary speed signal, and by this transmission path output,Wherein be connected with wired mode between this first node and this Section Point, and this transmission path is Wired transmission path that this motor rotary speed signal and this speed controling signal are incorporated into same this transmission path and transmit.

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