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Methods and systems for battery charging control based on CMOS technology

  • US 20050275377A1
  • Filed: 08/18/2005
  • Published: 12/15/2005
  • Est. Priority Date: 10/28/2003
  • Status: Active Grant
First Claim
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1. A method for protecting a battery charging control circuit implemented with low-voltage CMOS components, comprising:

  • (a) detecting a voltage of a battery;

    (b) if the battery voltage does not exceed a threshold voltage;

    (i) deactivating the battery charging control circuit, and (ii) charging the battery according to a first mode; and

    (c) if the battery voltage exceeds the threshold voltage;

    (i) activating the battery charging control circuit, and (ii) charging the battery according to a second mode, wherein a second mode charging current exceeds a first mode charging current.

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