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Apparatus for improved general-purpose PID and non-PID controllers

  • US 6,847,851 B1
  • Filed: 07/12/2002
  • Issued: 01/25/2005
  • Est. Priority Date: 07/12/2002
  • Status: Expired due to Fees
First Claim
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1. A proportional, integrative, and derivative (PID) controller comprising a proportional element, an integrative element, and a derivative element coupled together and responsive to a reference signal to generate a control signal in response thereto to cause a plant to generate a plant output, wherein the proportional element has a gain element with a gain being substantially equal to 0.72*Ku*

  • -1.6Ku+1.2Ku2-.001234000198



    *Tu
    -6.117274273



    *10-6
    where Ku is the ultimate gain of the plant and Tu is the ultimate period of the plant.

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