Quark ESC Power Board Comparisons/Mods - RC-Monster Forums

sikeston34m · 11.04.2007, 08:11 AM

It would be the high voltage back EMF sensing that would cause the problems in a HV setup?

GriffinRU · 11.04.2007, 10:24 AM

Quote:

Originally Posted by sikeston34m

It would be the high voltage back EMF sensing that would cause the problems in a HV setup?

That is minor and must be solved at the same time when you figure out how to generate supply voltage for your ESC microprocessor and subsystems (It is complicated going from above 35V down to 5).
You still need to sample supply voltage, if you plan to monitor battery voltage to use LiPo cutoff.

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As far high voltage problems, it is a complex to describe, but think of your ESC as a hammer. When it is small you can use it and neighbors won't even hear you, while if you start using pneumatic one then entire neighborhood will know that you mean business. :)

lutach · 11.04.2007, 10:38 AM

One thing I have to add. As you all know there are some delays with m ESC, but the engineer that is building it told me that it would be easier to make a 80 or 100 volts controller. I already told him I will do a few after I receive the one I'm waiting for. Just te thought of having a ESC capable of 18S and 22S lipos just makes me happy LOL. I think I like HV stuff mainly because I got electrocuted twice. First time was in Brasil with 220 volts, I was 7yrs old. The other time was in HS in Florida. It was from a nasty Hi Amp Audio Grade battery that knocked me a few feet back LOL.

sikeston34m · 11.04.2007, 06:17 PM

Quote:

Originally Posted by lutach

One thing I have to add. As you all know there are some delays with m ESC, but the engineer that is building it told me that it would be easier to make a 80 or 100 volts controller. I already told him I will do a few after I receive the one I'm waiting for. Just te thought of having a ESC capable of 18S and 22S lipos just makes me happy LOL. I think I like HV stuff mainly because I got electrocuted twice. First time was in Brasil with 220 volts, I was 7yrs old. The other time was in HS in Florida. It was from a nasty Hi Amp Audio Grade battery that knocked me a few feet back LOL.

Please keep us updated Lutach. You sure have my interest in that. But please, be careful around all those flowing electrons. LOL

lutach · 11.04.2007, 06:26 PM

I will keep everyone informed, but I might wait until I have one unit here for testing. Now I'm really liking your controller. Size wise, yes it looks big, but the power you might be capable of producing, the size of the controller will not matter. Keep me informed on how good your monster (In a good way) performs.

sikeston34m · 11.05.2007, 08:27 AM

Thanks Lutach

This powerboard has 30 of the larger 80v 75amp Mosfets. This will be a hefty gate load for the drivers to carry. This is why I need to study Brain Board Components alot closer to calculate driver load carrying ability.

lutach · 11:45 AM

Quote:

Originally Posted by sikeston34m

Thanks Lutach

This powerboard has 30 of the larger 80v 75amp Mosfets. This will be a hefty gate load for the drivers to carry. This is why I need to study Brain Board Components alot closer to calculate driver load carrying ability.

That is nice. You might be able to use 18S lipos with your controller. Good for speed runs LOL. Make sure all the components are rust free.