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Digital voltage regulator

  • US 5,285,147 A
  • Filed: 06/19/1991
  • Issued: 02/08/1994
  • Est. Priority Date: 11/02/1989
  • Status: Expired due to Term
First Claim
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1. In an electrical power generating system having a generator, sensing means for sensing generator system conditions, and means responsive to a control signal for varying generator output power, a voltage regulator comprising:

  • a digital control circuit comprising a single VLSI digital chip including an input circuit operatively connected to said sensing means and a processor having a memory circuit and an output circuit developing said control signal which comprises a pulse width modulated signal, said processor being responsive to system condition inputs for establishing a duty cycle of the control signal in accordance with an algorithm, which algorithm includes a control loop determining a difference between the sensed system conditions and desired system conditions to determine an error and a gain and compensation function responsive to such error for developing said duty cycle of the pulse width modulated control signal to maintain generator output power at a desired voltage level, and said memory circuit storing said algorithm and coefficients for said gain and compensation function.

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