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AC-DC adapter interface and battery charger having high speed battery charger current foldback when adapter current demand exceeds prescribed limit
AC-DC adapter interface and battery charger having high speed battery charger current foldback when adapter current demand exceeds prescribed limit
Using an overcurrent detector and one-shot, an AC-DC adapter interface and battery charging circuit is operative, in response to the total current being drawn from an AC-DC adapter exceeding a prescribed limit, to immediately reduce (e.g., interrupt) the supply of battery charging current for a prescribed interval, and thereafter allow the battery charging current to incrementally adjust to an acceptable level, while maintaining the total current drawn from the AC-DC adapter to less than the prescribed limit.
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