Circuit and method for detecting zero-crossings and brownout conditions on a single phase or multi-phase system
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United States of America Patent
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Feb 28, 2017
Grant Date -
May 15, 2014
app pub date -
Sep 18, 2013
filing date -
Nov 14, 2012
priority date (Note) -
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Abstract
A circuit configuration detects zero-crossings and/or a brownout condition. The circuit configuration contains a zero-crossing detection circuit, a brownout detection circuit, an isolation and digitization circuit connected to the zero-crossing detection circuit and the brownout detection circuit, and a filtering circuit connected to the isolation and digitization circuit. The single circuit configuration can be used for detecting zero-crossings of single-phase and multi-phase systems as well as ascertaining a brownout condition of either the single-phase or the multi-phase systems.
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