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Search took 0.05 seconds. Search: Posts Made By: dave koller
Forum: Fossil Fuel Free 05-24-2018, 01:10 PM
Replies: 1,499
Views: 541,223
Posted By bennelson
I've now posted all of the BUILD YOUR OWN...

I've now posted all of the BUILD YOUR OWN ELECTRIC CAR DVD as a playlist series on youTube. You can watch the whole thing there now for free.
...
Forum: Open ReVolt: open source DC motor controller 01-09-2017, 05:41 PM
Replies: 7,381
Views: 2,409,011
Posted By MPaulHolmes
Here's a new board for the high powered IGBT DC...

Here's a new board for the high powered IGBT DC controller:
http://i419.photobucket.com/albums/pp280/MPaulHolmes/DCBoard21Top.jpg...
Forum: Fossil Fuel Free 01-06-2017, 06:15 PM
Replies: 3,480
Views: 915,121
Posted By motorulf
I hade some success with the reverse. Now there...

I hade some success with the reverse.
Now there is full power going backwards too, but thats just thrilling :p
Not quite ready for public release yet, but soon.

I made a small adapter that...
Forum: Fossil Fuel Free 11-10-2016, 07:13 AM
Replies: 3,480
Views: 915,121
Posted By MPaulHolmes
It is 8 pole (4 pole pairs). Here's a video I...

It is 8 pole (4 pole pairs). Here's a video I just finished with testing it on our go-kart. I don't think it would spin if the pole pairs were wrong:
https://www.youtube.com/watch?v=6FUEo_TXSDg
Forum: Open ReVolt: open source DC motor controller 07-21-2016, 02:47 AM
Replies: 7,381
Views: 2,409,011
Posted By duncan
Batteries in their new home Do you like the...

Batteries in their new home
Do you like the Chevy Power sticker?

Covers for the battery compartment

Controller mounted above the batteries
Forum: Fossil Fuel Free 05-30-2016, 02:46 AM
Replies: 3,480
Views: 915,121
Posted By thingstodo
An update! The last of my April 27 videos ......

An update! The last of my April 27 videos ... it`s not pretty, but the information should be there! Well, most of it anyway :D

https://youtu.be/KMspwOGJGZ0

Youtube is processing .. should be...
Forum: Fossil Fuel Free 02-25-2016, 11:33 PM
Replies: 3,480
Views: 915,121
Posted By MPaulHolmes
I've got the "saliency adjuster" code working, so...

I've got the "saliency adjuster" code working, so it can run an interior permanent magnet motor now. well, I'm going to switch back to the Toyota mgr and get that working now that I know it works...
Forum: Fossil Fuel Free 02-19-2016, 02:57 PM
Replies: 3,480
Views: 915,121
Posted By jackbauer
I just built one of the resolver to encoder...

I just built one of the resolver to encoder boards that Paul kindly sent to me. Will be testing it out on a Lexus GS450h motor tomorrow. Plan to build one of these controllers as soon as I get a PCB...
Forum: Fossil Fuel Free 01-26-2016, 12:54 AM
Replies: 3,480
Views: 915,121
Posted By MPaulHolmes
My wife made a Ken Burns documentary of me...

My wife made a Ken Burns documentary of me testing out our new Nissan Leaf motor:
https://www.youtube.com/watch?v=qzlLh8xxx1g

The resolver to encoder chip I used is AD2S1210.
Forum: Fossil Fuel Free 01-15-2016, 11:21 PM
Replies: 3,480
Views: 915,121
Posted By e*clipse
Ok, as promised here are some pics showing the...

Ok, as promised here are some pics showing the test. Paul - I would like to apologize in advance because these pics have nothing to do with AC motor controllers. I'm absolutely not trying to hijack...
Forum: Fossil Fuel Free 01-04-2016, 12:51 AM
Replies: 3,480
Views: 915,121
Posted By thingstodo
Update for Dec 21 This is an addition to the...

Update for Dec 21

This is an addition to the safety of my test setup, an Emergency Stop slap switch

https://youtu.be/_rEIyofKuTc
Forum: Fossil Fuel Free 11-01-2015, 05:07 PM
Replies: 3,480
Views: 915,121
Posted By MPaulHolmes
Hi Chinuhark! I wrote the FOC code from scratch...

Hi Chinuhark! I wrote the FOC code from scratch without using or even looking at any other code. I agree that debugging becomes almost impossible if you are using stuff that you don't completely...
Forum: Fossil Fuel Free 09-27-2015, 04:59 PM
Replies: 3,480
Views: 915,121
Posted By MPaulHolmes
Ya, the mulss takes a couple cycles off the...

Ya, the mulss takes a couple cycles off the normal multiply. I think because there are 4 variations:
mulss
mulus
mulsu
muluu

(signed signed)
(unsigned signed)
(signed unsigned)
(unsigned...
Forum: Fossil Fuel Free 09-14-2015, 01:44 PM
Replies: 3,480
Views: 915,121
Posted By MPaulHolmes
This is awesome info. I just made a change where...

This is awesome info. I just made a change where it will show every fault that happens rather than just one of them. Also, I can make the rotor test probably 100 times faster now too. Although we...
Forum: Open ReVolt: open source DC motor controller 01-17-2015, 02:02 PM
Replies: 7,381
Views: 2,409,011
Posted By flores
So I'm BACK!!! Sorry for the delay friends,...

So I'm BACK!!!

Sorry for the delay friends, I've been busy.
Today I mounted the controller in the beetle.

Set the amps limit to 300 (so that is 1200A) and took it for a spin... it drives...
Forum: Open ReVolt: open source DC motor controller 12-10-2014, 04:21 AM
Replies: 7,381
Views: 2,409,011
Posted By duncan
Pictures from the Evelocity event Pictures...

Pictures from the Evelocity event

Pictures are from Orion who sponsored the event
Forum: Open ReVolt: open source DC motor controller 12-01-2014, 02:41 AM
Replies: 7,381
Views: 2,409,011
Posted By duncan
Hi Paul Just got back in We did the event on...

Hi Paul
Just got back in
We did the event on Sunday and drove home today
I will have to look and see if Jane managed to take any usable pictures

Anyway the controller was great
But I have made...
Forum: Fossil Fuel Free 11-19-2014, 08:22 PM
Replies: 3,480
Views: 915,121
Posted By cts_casemod
I am actually developing an application using...

I am actually developing an application using instaspin from texas that uses that concept.

I use the motor encoder to get 200% torque at zero speed and switch to a completely sensorless...
Forum: Open ReVolt: open source DC motor controller 11-13-2014, 05:55 PM
Replies: 7,381
Views: 2,409,011
Posted By MPaulHolmes
It was 81 here today. Haha. I wish it was...

It was 81 here today. Haha. I wish it was snowing.
Forum: Open ReVolt: open source DC motor controller 11-03-2014, 12:56 AM
Replies: 7,381
Views: 2,409,011
Posted By duncan
Talking Hi Guys Got the cooling plate attached also the...

Hi Guys
Got the cooling plate attached also the two end plates,
Paul has sent the software so I will have to fight with that
keep fingers crossed:D
Forum: Fossil Fuel Free 09-29-2014, 09:27 AM
Replies: 3,480
Views: 915,121
Posted By redneck
.

.
Forum: Fossil Fuel Free 09-26-2014, 07:27 PM
Replies: 3,480
Views: 915,121
Posted By e*clipse
Smile Yea! I'm making a bit of progress on that front...

Yea! I'm making a bit of progress on that front as well. :)

I've gotten both sin and cosine ouputs to work simultaneously. Here's a sample of the output. This output is actually a pair of...
Forum: Open ReVolt: open source DC motor controller 07-01-2013, 01:29 AM
Replies: 7,381
Views: 2,409,011
Posted By jackbauer
Video as promised! ...

Video as promised!
https://www.youtube.com/watch?v=9EIZR-oXUxQ
Forum: Open ReVolt: open source DC motor controller 06-03-2013, 08:11 AM
Replies: 7,381
Views: 2,409,011
Posted By jackbauer
Video here :...

Video here : http://www.youtube.com/watch?v=nkZNFCsi-A4

Only took 15 hours to upload! Gotta love Irish broadband :)
Forum: Open ReVolt: open source DC motor controller 01-10-2013, 04:14 PM
Replies: 7,381
Views: 2,409,011
Posted By jackbauer
A lot of people have been asking me for some of...

A lot of people have been asking me for some of the custom software that Paul and others put together for me over the years for the 500A controller so here it is :...
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