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Method of and apparatus for controlling motor

  • US 5,808,429 A
  • Filed: 04/06/1993
  • Issued: 09/15/1998
  • Est. Priority Date: 08/31/1990
  • Status: Expired due to Term
First Claim
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1. A method of controlling operation of a DC motor comprising the steps of:

  • supplying the DC motor with a first driving voltage;

    measuring the level of acceleration of an output shaft of the DC motor;

    determining the square root of the detected level of acceleration; and

    supplying the DC motor with a second driving voltage which is equal to the difference between the square root of the measured level of acceleration and the first driving voltage.

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