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The issue is actually about the transformer cores periodically saturating when connected to the mains, something that happens on a fairly random basis as I explained. The tendency for them to...

It's interesting that the original design talks about using this kind of inrush limiter with toroidal transformers "up to 500VA." This surprised me as I have been cheerfully using toroidal...

Yes, another option might be a means of turning on and off at a defined phase angle, ideally ensuring the appropriate polarity.

A phase angle controller using a triac to gradually open up the duty...

One issue with a thermistor is the fairly long time constant for it to cool down again and until it does so, the resistance may be too low to prevent tripping the breaker. For an application like a...

SSRs typically switch at the zero crossing point, however that is the worst point to switch as it'll cause the biggest inrush, which is why they're a poor choice for switching transformers (plus the...

If you want to take this IM please feel free to do so, this isn’t the place to iterate a design. Hint: consider how you’re going to support a differential drive from the encoders, if someone was...

Please do me a favour and design your hardware to behave in a robust and dependable manner within the environment that you're advertising it. Don't think for a second that a RC filter will protect...