Local loop control system for a multiple output power converter
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United States of America Patent
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Sep 3, 2002
Issued Date -
N/A
app pub date -
Jun 28, 2001
filing date -
Jun 28, 2001
priority date (Note) -
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Abstract
A local loop control system and method of operating the same for use with a power converter. The power converter includes a first output coupled to a first synchronous rectifier circuit and a second output coupled to a second synchronous rectifier circuit. The power converter employs a main controller configured to regulate a voltage proportional to a weighted sum of the first and go second outputs. In one embodiment, the local loop control system includes: (1) a first output controller configured to regulate a voltage at the first output and (2) a second output controller configured to regulate a voltage at the second output, one of the first and second output controllers configured to reduce a drive signal to a corresponding one of the first and second synchronous rectifier circuits when a corresponding voltage at one of the first and second outputs exceeds a voltage proportional to the weighted sum.
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