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Battery-charger device with improved stability

  • US 7,692,406 B2
  • Filed: 06/16/2004
  • Issued: 04/06/2010
  • Est. Priority Date: 06/18/2003
  • Status: Active Grant
First Claim
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1. A circuit for controlling a battery-charger device with a closed-loop architecture, the circuit comprising:

  • sensing means for sensing an operative quantity of the device and comparing the operative quantity that is sensed with a reference value;

    control means for controlling the sensing means such that the sensing means alternately tracks the operative quantity during a tracking phase and holds the operative quantity during a holding phase; and

    driving means for generating a regulation signal so as to regulate the operative quantity based on a result of the comparison by the sensing means,wherein the control means controls the driving means such that the driving means holds the regulation signal during at least part of each of the holding phases during which the sensing means holds the operative quantity.

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