Just a btw, 20uA is impossible without a switching device; according to the engineers who designed the FOC Unity, electrolytic capacitor leakage current is much higher than this, on the orders of hundreds of microamperes.
However, it is theoretically possible to get an antispark with an operating current this low, I just can’t be bothered to design one because it would be ridiculously expensive.
Parts needed are LM5163, LTC7000 or LTC7003, and some ultra-low power MCU, like STM32L0 with half-decent firmware, if someone else wants to take a stab at it.
We meassure the current during hibernation. The outcome is 20uA. Datasheets are one thing, reality is another thing.
The current you mark is the operating supply current, non switching. That is different from the sleep mode.
Going to put it in a belt drive scooter, FOC offers minimal benefit, and considering the International Rectifier garbage thats in these things, would just make it heat up excessively.
Also a custom FOC algorithm would take me a lot longer to implement.
Alright guys, I took one for the team and ordered a tramp vesc 6.
Going to test it in my scooter and subsequent (non-ddestructive) teardown and analysis, can’t wait to report to you guys what I find. I expect the actual sleep current to be around 1-2mA.
Interested to see how it performs compared to Flipsky’s 6.6 with enclosure, since that one uses much better MOSFETs, but has a worse QC roll.
Expect the teardown to have me rant about the MOSFETs for a bit.
Expect in the next few weeks for a <$200 trampa vesc 6 being sold on the forums.