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DC-dC converter having dynamic regulator with current sourcing and sinking means

  • US 5,926,384 A
  • Filed: 06/26/1997
  • Issued: 07/20/1999
  • Est. Priority Date: 06/26/1997
  • Status: Expired due to Term
First Claim
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1. An electronic circuit comprising:

  • a dc-to-dc converter and a load connected thereto, said load being capable of generating a load current demand transient and a load current excess transient; and

    a dynamic regulator connected in parallel with said load and said dc-to-dc convertor and comprising;

    current sourcing means for actively sourcing current during the load current demand transient to thereby reduce a load voltage dip which would otherwise occur,current sinking means for actively sinking current during the load current excess transient to thereby reduce a load voltage spike which would otherwise occur,voltage sensing means for sensing a load voltage,load voltage tracking means for tracking the load voltage by following an average load voltage, andcontrol means for operating at least one of said current sourcing means and said current sinking means responsive to the sensed load voltage changing rapidly with respect to the tracked load voltage so that other changes in the sensed load voltage do not trigger operation of a respective one of said current sourcing means and said current sinking means.

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