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Apparatus and method for controlling operation of linear compressor

  • US 6,537,034 B2
  • Filed: 11/21/2001
  • Issued: 03/25/2003
  • Est. Priority Date: 11/29/2000
  • Status: Expired due to Fees
First Claim
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1. A method for controlling an operation of a linear compressor comprising the steps of:

  • outputting a stroke command value according to user'"'"'s input information;

    outputting a current and a voltage generated when the linear compressor 32 is driven by the stroke voltage;

    receiving the detected current and the voltage and computing a displacement;

    receiving the displacement and the detected current, multiplying the current and the displacement together, integrating the multiplied value, and outputting the integrated value as a work operation value;

    receiving the work operation value (W), comparing it with a previous work operation value (W) and outputting a variation amount of the work operation value;

    outputting a switching control signal having a duty ratio of the current time point if the variation amount of the work operation value is more than a predetermined value; and

    switching an AC power with the triac 31 according to the switching control signal, applying a stroke voltage to the linear compressor 32, and driving the compressor.

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