This is great, I’ve messed with TRIAC designs, and safely sizing your resistors, calculating the correct snubber values (which admittedly is load-dependent so hard to make a general-purpose design), and correctly adding creepage distance and clearance is non-trivial. This board looks like it was designed and built to a much higher standard than cheap AliExpress-grade SSRs. I’d love to find low-priced copies of it!
Pretty sure you do not have sufficient clearance between the HV doings and that bit of bodge board with the isolated inputs on it.
Suggest moving the input board to the bottom edge below the optos, which should be safe, the while line passing under the optos is probably marking the isolation.
If that had anything to do with the production or distribution of Wolf Cola you might consider staying clear. That stuff can be a real nightmare.
Interesting. I alwqys wanted to see the calculations behind all these designs
This is great, I’ve messed with TRIAC designs, and safely sizing your resistors, calculating the correct snubber values (which admittedly is load-dependent so hard to make a general-purpose design), and correctly adding creepage distance and clearance is non-trivial. This board looks like it was designed and built to a much higher standard than cheap AliExpress-grade SSRs. I’d love to find low-priced copies of it!
Pretty sure you do not have sufficient clearance between the HV doings and that bit of bodge board with the isolated inputs on it.
Suggest moving the input board to the bottom edge below the optos, which should be safe, the while line passing under the optos is probably marking the isolation.
What are you trying to accomplish? Are you using the board for a new purpose or are you upgrading the oven? I am genuinly interested! 🙂