4 ms·
can you explain how synchronizing phase is trivial? the previous post made sense to me. it is hard to shift phase. i agree that you could not try, and instea
by andrewcooke 17y ago
can you explain how synchronizing phase is trivial? the previous post made sense to me. it is hard to shift phase.
i agree that you could not try, and instead "hit the gap" (in which case synchronizing phase isn't important), but if you don't do that, and instead want to connect two supplies at once, how does a microcontroller make that easy?
- nearestneighbor 17y agoFirstly, you don't need to phase shift here, because you'll need to generate AC from DC (battery), so you may as well generate it in phase with the signal from the outlet. Secondly, if you need a phase shifting device (for something else), depending on the requirements, there are a number of options starting with something as simple as an RC unit. Thirdly, generating "AC" [periodically changing signal] of a given voltage and an (approximate) frequency in sync with some other signal is what CRT TVs did (for the CRT). > it is hard to shift phase. Not to the engineers building these kinds of devices (I'm explaining high school to freshman Physics here)
- andrewcooke 17y agomaybe instead of explaining the obvious you should read the original comments. the comment i was defending was about converting ac to ac. their conclusion was that it would need to go through dc (which no-one, including me, has disagreed with).