8 ms·
Are you sure they modulated the frequency of the actual AC power (typically 50 or 60 Hz) and didn't overlay it with a high frequency signal? It's very common wi
by flakeoil 2y ago
Are you sure they modulated the frequency of the actual AC power (typically 50 or 60 Hz) and didn't overlay it with a high frequency signal? It's very common with power line communication or power line modems. You modulate a data signal on top.
- immibis 2y agoIt's a data signal on top. The system is called "ripple control".
- ZeroGravitas 2y agoPossibly some version of this: https://en.wikipedia.org/wiki/Zellweger_off-peak https://en.wikipedia.org/wiki/Zellweger_off-peak In use for 7 decades or so.
- gorbypark 2y agoThis sounds like what I remember it being described as. Thanks!