Power Shield Release Date?

Hello! I wondered when the Power Shield version of SimpleFOC will be released.

I am looking for a low cost BLDC controller that is easy to learn, and SimpleFOC seems perfect, but 5amps is a little low for the burst of speed I am looking to get. My project runs fine with ODrive, but i am looking for a smaller, single-BLDC controller that isnt so expensive.

But the Power Shield looks just right! Can I have a early version? haha j/k
Any suggestions on a controller that is similar to the Power Shield’s specification and is easy to learn? (Arduino preferred)

Thanks

Hi and welcome @stiener ,

While we wait for the PowerShield :wink: there is also this one:


and maybe also this one:

Some people are also running SimpleFOC on VESC based hardware…

awesome, thank you for the info!

Hey @stiener,
I’m happy you like it.
I’m working on intgrating the LDO and making it stackable and then I’ll release the version v1.
Version that is available in the repo at the moment is not stackable but it can already do the torque control and all the features that the simplefoc supports at the moment.

You can order it from the jlcpcb directly and the price for the batch of 2 boards for me was around 60$ (including shipping) It’s still pretty high but its reasonable.

Regarding the early versions, I do have one early version (v0.1) board (without in-line current sensing). If you are interested in having it send me a PM. I’d be happy to send you one, as I am not using it any more. :smiley:

That sounds great! I will PM you for the early board, so that it doesn’t go to waste =)

Darn, when i try to PM, it says “Sorry, you cannot send a personal message to that user.” Maybe i havent posted enough to PM or something

Keep in mind that 30 Amps is rather optimistic. It says in the specs that the drivers can handle this, but you should read the entire spec, not just the top :

  1. Specified R thJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The Product
    (Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70μm Cu, 2 x 35μm Cu).
    Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.

The board is not that big or made from those materials, so you should think of 10 Amps max.
Putting a heatsink on the top of the plastic when the device was designed to dissipate heat through the bottom can lead to a cracked housing.

Interesting, thanks. The Power Shield version still looks great.

That’s true!

The board is still in the testing phase and i have really no idea about the true current capacity of it.
I’d say that’s the heat evacuation is not the biggest problem but also the size of copper traces and their thickness.
I still have to test everything properly, but what i can confirm is that I’ve tested it up to 10Amps and it works without any problem.
The housing gets a bit warm.

Bit as I said, this board is still in it’s early stages.

That sounds like a less effective way to design things.
More usual would be to set your design-goals first.
I think that approach would lead to a different design, where you would first find a heatsink exactly the size of an Arduino shield or have one made. It would then have through-hole components instead of surface-mount.
( JLCPCB doesn’t do via’s to an inner layer )
But maybe nobody needs more than 10 Amps ?

Wow! Great work.

Interesting to see a bridge with integrated driver.

Concerning the heat dissipation. Since the shield is just about 60x60mm you could integrate a 60mm cooling fan on top, just by rounding out the corners and making holes for standoff´s :slight_smile: With active cooling, I would say 30 amp, hmm why not. You would need a fan controller though or just a small Mosfet for gnd wire. Then again, the fan would need to be VIN voltage tolerant (12/24V).