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| CFW for KSGER/Quicko STM32 Soldering Stations |
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| porlock:
--- Quote from: DavidAlfa on January 02, 2025, 08:39:01 pm ---Have doubts? Take an oscilloscope and watch the pwm output. --- End quote --- Actually i did that :-) Because of 10ms delay for 200ms we loose 5% of duty, that is 10W from 200W heater, so if someone want more power should set ADC time longer, but that will increase read delay, and make PID works worse, setting delay shorter will also help to get more power. 200ms/10ms mul=x1 seems to be optimal, for clone C245 tips This is interesting its has 200ms/20ms and PWM mul set at x2, set point was 300C and current temp 100C, so Kp should push as much it can, but we can see some extra 10ms delay between PWM cycles, not sure why. (there was no power limit set) |
| DavidAlfa:
Yep pwm mul simply makes smaller cycles in the same way as the main one, also replicating the dead time. I could fix that, put pwm mul was really meant for power limiting, so the heater doesn't take a huge punch at once. I won't fix that anytime soon, got better things to do... Longer adc than 200ms will likely make the station oscillate like crazy, there won't be any real world difference between 65 and 70w, specially with cheap tips. |
| ascarons22:
First of all, happy new year David, I'm getting down to business. If you remember, I have a handskit on which I installed your wonderful firmware, but the bastard only works with 2 T12 tips, the rest continually fail. Those tips that don't work on that station work on the other one that has a ksger 2.1s PCB, with that one it's wonderful, so I don't know if something is wrong with your handskit. Regards |
| DavidAlfa:
What do you mean exactly by "doesn't work"? Happy new year! :-+ Enable debug menu, show ADC avg value for 300°C. If something is broken in the amp it'll be very noticeble! |
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