Method of communicating internet-based data
In accordance with an embodiment, a method of operating an electronic system includes detecting an incoming transmission on a power line, and modifying a switching behavior of a switched-mode power supply coupled to the power line upon detecting the incoming transmission. Modifying reduces the level of interference produced by the switched-mode power supply.
1. A method of communicating Internet-based data, comprising:
detecting, via a transmission detector of a power line modem, a preamble of an Internet-based communication signal received on a 50 to 60 Hz alternating current (AC) power line; and
based on detecting the preamble, automatically directing a switched-mode power supply that receives power on the 50 to 60 Hz AC power line to modify an associated operating mode.
2. The method of communicating Internet-based data of claim 1 , wherein directing the switched-mode power supply to modify the associated operating mode includes directing the switched-mode power supply to set a switching behavior of the switched-mode power supply.
3. The method of communicating Internet-based data of claim 1 , wherein directing the switched-mode power supply to modify its operating mode includes synchronizing modification of the operating mode with a pattern detected in the Internet-based communication signal.
4. The method of communicating Internet-based data of claim 1 , wherein directing the switched-mode power supply to modify its operating mode includes directing a load coupled to a DC output of the switched-mode power supply to reduce power consumption.
5. The method of communicating Internet-based data of claim 1 , wherein directing the switched-mode power supply to modify its operating mode includes limiting current supplied to a load coupled to a DC output of the switched-mode power supply.
6. The method of communicating Internet-based data claim 1 , wherein communicating the Internet-based data conforms to a HomePlug protocol.
7. The method of communicating Internet-based data of claim 1 , wherein modification of the associated operating mode reduces levels of communication interference caused by the switched-mode power supply.
8. The method of communicating Internet-based data of claim 1 , wherein the associated operating mode of the switched-mode power supply includes at least one operation to disable harmonic spreading of the switched-mode power supply, reduce a power output of the switched-mode power supply, or suspend frequency fluctuation of the switched-mode power supply.
9. The method of communicating Internet-based data of claim 1 , wherein automatically directing the switched-mode power supply includes omitting at least one frequency in a frequency hopping schedule.
10. The method of communicating Internet-based data of claim 1 , wherein automatically directing the switched-mode power supply is in response to a pattern detected in data of the communication signal.