Controller having feed-forward and synchronization features
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United States of America Patent
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Nov 25, 1997
Grant Date -
N/A
app pub date -
Dec 13, 1995
filing date -
Dec 13, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An integrated circuit controller for a switching power converter implementing feed-forward and synchronization features. The controller IC has pins which permit dual functionality. The feed-forward feature is implemented with a supply voltage from an unregulated auxiliary winding which additionally powers the controller. The synchronization feature is implemented by coupling an external synchronization signal to a feedback pin of the controller IC to which a feedback signal from the output of the converter is also coupled.
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