Recent content by bradleyk

I've got this to the stage where it can now balance cells over multiple iso bus slaves. logging voltage every minute, accessable via a web interface. not yet talking over can. I'll be doing a pcb revision soon to clean up the layout to make assembly easier...

Anyone managed to get anywhere with this? I've just finished designing a low parts carrier for this. So far I can measure cell voltage and do 50mA per cell and 200mA per pack about to start testing isobus chaining then looking at writing a standalone balance firmware for the esp32 master...

Made a few changes to zombies layout with a new bus made out of 1.2mm copper sheet black is battery -ve and red is battery +ve. Modeled the controller in solidworks with a quick water cooling block.

Ahh yes, thank you. I did have a look at the datasheet and all the examples had that pin disconnected but it has an internal pullup. sweet thanks, solved that problem.

Let's see if we can't get this back on topic :D Just starting my development. Essentially 150v 20Kw motor driver I am not entirely sure what I am doing, But there is so much info on endless sphere. https://endless-sphere.com/forums/viewtopic.php?f=30&t=91723 just in the designing stage.

Hey Guys. Aiming to build a motor controller over the summer(Aus) for an electric car. Current battery is 24s2p, once everything is up and running I will be aiming for 30s(120v nominal) or so. Planning an 18 fet controller. 12-15Kw Continuous, 20-25Kw peak for starters I believe I should be able...

Woot, Just ordered two of these. Plan to put them in a smart car with zombies mosfet driver. I have a question about the CAN bus. Can regen be controlled from the can bus? I couldn't see anything about it in the manual.

OT the charger, here are the files i did them in eagle. the controller is still a work in progress, and will go above the fet's

it was a synchronous buck converter

i have now ordered a copy of zombies driver board to have a look at, will be ordering the BOM soonish

IGBTS require voltage > ~400 to be efficient. on a bike that is painful. im not planning on using the ac-35, they just had nice dyno graphs showing extended torque at highter voltages. im willing to swap to 100v and see how it goes. doesn't require that much effort to rewire the pack

yeah cool, ok i thought the extended torque range might be worth the switching performance. i'll rewire the pack for 24S

yeah, does seem that way, makes a charger easier. hmm deffently some food for thought but this is what has me a bit concerned, have a look at the range of usable torque At 96v, torqure drops off at 3000rpm...

3kw, yes it is. i was originally planning to go with ~150v volts, but i fount a 10kw nisson leaf module that fits where my petrol tank used to be. it's a 48s2p(180v nominal 200v max), i could make it a 90v nominal pack, but that was getting a bit low for my liking. what would you recommend...

hey, i looking at designing a 3kw motor controller for a bit of practice before i try at a 15kw continuous for a car. from reading arlo's and zombies i will be using Lebowski's controller. i have a bunch of these (ixth88n30p) lying around, i know these aren't the best and should probably get...