4 ms·
Perhaps. Can you elaborate on how your own idea works? I think I know what you mean, but I'd like for it to be explained. My own idea implies a potential of
by ssl-3 2y ago
Perhaps. Can you elaborate on how your own idea works? I think I know what you mean, but I'd like for it to be explained.
My own idea implies a potential of ~100% charging duty cycle even as low-speed data is being transferred, and that's good because charging seems to be the primary goal here in this application.
(My other idea, that I have not yet espoused, involves a waveform on top of a fairly-constant charging voltage. It can perform asynchronously, and might even be just amplitude modulation. But it probably means more parts and complexity than my first idea involves: Functional analog filters always seem to take a handful of parts to get the it right, whereas my polarity-swap idea only uses a couple of high-tolerance jellybean MOSFETs and some parts-bin diodes.)
- fragmede 2y agoevery 10 milliseconds (or whatever), the base goes high or low, and by having a clock on board that can count 10 milliseconds, the puck can sample the pin and read a high or low value, and then you specify patterns from there. You'd have to make it so it can be connected in the middle of a packet and ignore it and such, but those are solvable. (Technically you'd sample more frequently on the pucks due to Nyquist.) Ooh, just AM off the power pin itself is another clever of doing it. All comes down to price and what's the cheapest to implement so you can drive the BoM on the puck's down as much as possible.