| 摘要 |
<p>A method and apparatus for controlling electrical for communicating over AC mains wires, comprising: providing a master unit and at least one slave unit; connecting the master unit to at least one wire of AC mains; connecting a slave unit to at least two wires of an AC mains; and communicating between the master unit and the at least one slave unit by a plurality of data elements in a half cycle of an AC current about the zero-crossing while substantially maintaining the current waveform.</p> |
