Electric motor control device

Electric motor control device

  • CN 1,482,733 A
  • Filed: 06/11/2003
  • Published: 03/17/2004
  • Est. Priority Date: 09/13/2002
  • Status: Active Grant
First Claim
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1. the control device of a motor is transformed into it resistance that the current detecting that exchanges inverter that motor is driven, be located at the DC side of this inverter uses, and generates the device that break-make is instructed for the element that constitutes above-mentioned inverter according to the above-mentioned motor of the Current Control ground that is gone out by this resistance detection thereby have the input direct current;

  • Wherein, have carrier frequency when when the rotating speed of above-mentioned motor is low, reducing to generate above-mentioned break-make instruction, when rotating speed is high, increase the device of carrier frequency.

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