: still wonder, maybe you can elaborate on one thing since you’re familiar with hardware design: Apparently the flipsky vescs are delivered with 75300 firmware but the 75300 hardware is apparently built with “phase” shunts. It’s mentioned in this thread that in the 100V vescs there are low side shunts due to the rating of one of the drivers:
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I guess that could relate also to the hi200 - if that’s delivered with 75300 firmware?
What i’m getting at is that if there is a wrong firmware also in the hi200 then that could explain the ”bursting into flame” part..
This is the thread:
They use 75_300_R2 on all of those models. 75100v2 Original ebike version 75100 Aluminum PCB 75200 Aluminum PCB 75300 Aluminum PCB The 100 and 200 are for sure low side shunts. I’m 99% sure the 75300 is as well. I have a working hardware config for it but need more testing.
: do you know which firmware the hi200 was delivered with?
What Frank says about the shunt amplifiers is true, but it's not entirely fair. The reason I think this is that until about a year ago the VESC firmware didn't really use the phase filters and phase shunts, so it made no difference. Then one day Benjamin went and made the 75xxx firmware all rely on the phase filters and used phase shunts for silent hfi and for a brief period this was terminal for any ESC that had previously worked absolutely fine. It wasn't just flipsky that was hit by this, it was plenty of home brew makers as well as maker x.
Few weeks later an update went out that detected non compliant hardware and converted it back to safety.
Regarding the naming convention, everyone else hates Trampa's naming convention and it's not what the rest of the controller world outside VESC uses. You can't run the Trampa hardware at the name ratings, they'll simply turn themselves off. So why name them such? A typical assumption people make is that a 75V ESC will run with a 72V battery. But if you mate trampa 75300 with 20s... Fire before you even try to spin. In other posts Frank gets angry when people name their VESC copies VESC or 75300/100250 and hence we have Axiom, a200s, hi200, Ubox100, CL1000... Flipsky just went and chose to name theirs with a daft combination of Trampa meets normal ebike rating system...
Regarding ypl copying... It's no more copying to use ypl firmware than 75300 firmware. The board ypl posted was clearly a different layout, whoever designed the flipsky version had clearly done it from absolute scratch so copying? I dunno... A dubious claim and hardly a crime when the entire VESC community just relentlessly copies the Trampa schematics. You could easily say ypl copied the original micro nucular design (check it, basically the same), it's just a really obvious layout.
The wrong firmware situation arose because they couldn't get the firmware from ypl until it was too late (which by the GPL licence they were entitled to) and then Frank/everyone on esk8 started yelling GPL at them... So they panicked, pulled the ypl firmware version and replaced it with a bodged 75300 "compatible"version. Absolute shit show.
The entire VESC world is copycat, crying for someone being copied and feeling bad about it is ridiculous.