Recent content by sdobbie

They gave me passwords but I just get password error when I enter them.

Thanks very much for that, I am able to see all the settings but they still don't save. I saw a passwords section but don't know what the passwords are, I think I need those to save settings.

Hi everyone, I am having a lot of bother setting up my ant bms, it pairs fine and I can read the cell voltages in the app but it doesn't save any settings I put in even after I select save. They always stay at 0. How do I set the cell count and save the settings I put in? When I select read...

My design will be similar but I am using a totally different set of components and layout. The mosfets will be heatsunk to the bottom of the aluminium box I am mounting this in so they will be bent back against the pcb. I have yet to design the board that goes on top, this is just a rough layout.

Hi, Help with power stage layout and design would be good, if there's any flaws you might see. I am going to redesign this controller where the power stage, 12v, 5v and 3.3v power supplies are on the bottom board and the MCU will be on a separate board which plugs in on top. That way I will...

It's just the hub motor noise. So I can diagnose the regen issue, can I use a hc05 Bluetooth module with the vesc app?

So here is my first road test. It works perfectly apart from the regen cutting out for about a second before coming back on again. This only happens during hard regen braking. The motor sometimes doesn't start properly but I think that is because of my loose axles. https://youtu.be/EgfNWWEtfNQ

I was wondering if there are any companies who would sell me empty controller cases like the ones found on the kt 12 fet controllers for example?

Thanks, did that, run a test and no squealing at all. Motor runs silently and smoothly so will need to do a road test soon.

I have built the second prototype now with the suggested inprovements. I flashed it with the bldc master branch and downloaded the vesc tool from the vesc website but I am getting an error that the vesc has newer firmware than the vesc tool and the vesc has test firmware which isn't a safe...

How does this look? I managed to fit everything in.

So if I don't include C1 and R3, what will stop the high side mosfets from ringing?

If you don't have a need for the board, then I will pay your return postage to me. Is this what I should start with? Hope I understood your suggestions properly.

Wow, never expected it to be that easy to find what the issue was. It seems to be partly a layout and mostly a component selection issue. Agreed, ringing looks horrible and must be sorted. I hope we can work out what mosfets are best for this design as well as work out a snubber. I take it the...

Is there any way I can find the KV of the motor? I also attached a scope to all three phases and I am getting PWM across all of them. Maybe I can try openloop mode if there is any way to use it like a vfd where I can adjust voltage and frequency?