POWER CONVERSION APPARATUS
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United States of America Patent
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Aug 8, 2017
Grant Date -
Aug 10, 2017
app pub date -
May 23, 2016
filing date -
Feb 5, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A power conversion apparatus includes a power conversion circuit, a synchronous rectification transistor, a synchronous rectification control circuit, a feedback circuit, and a cable loss compensation circuit. The power conversion circuit converts an input voltage into an output voltage and provides it to a load. The synchronous rectification transistor is coupled in series to a current path on a secondary side of the power conversion circuit and switched according to a synchronous rectification control signal. The synchronous rectification control circuit generates the synchronous rectification control signal for controlling the switching of the synchronous rectification transistor. The feedback circuit generates an output indication current associated with the output voltage. The cable loss compensation circuit draws a compensation current from the feedback circuit according to the synchronous rectification control signal, so as to compensate for the output voltage based on a sum of the compensation current and the output indication current.
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