Dual transformer communication interface
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United States of America Patent
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Jul 11, 2017
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N/A
app pub date -
Jun 23, 2008
filing date -
Jul 25, 2006
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Abstract
A power line communication device comprises a plurality of transformers in series. These transformers are used to increase the voltage of a digitally encoded signal in a stepwise fashion prior to being coupled into a power line. While a transmit path includes at least a first transformer and a second transformer in series, a receive path may include only one of these two transformers. For example a receive path may include only the first transformer, or include the first transformer and a third transformer. The net ratio of voltage increase and decrease may be different in the transmit and receive paths.
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