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Search took 0.01 seconds. Search: Posts Made By: jedsmd
Forum: Open ReVolt: open source DC motor controller 07-14-2021, 03:35 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Okay ignore my previous posts. When I removed...

Okay ignore my previous posts. When I removed the damaged batteries it became obvious something completely different was happening.

My previous battery set had plastic casings. The new new...
Forum: Open ReVolt: open source DC motor controller 08-08-2017, 12:03 AM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Maybe I am over simplifying, but here is my...

Maybe I am over simplifying, but here is my take.

For the 4@ 300 amp IGBTs:
Avg current per device = 1000amps /4 = 250amps
From the first graph in the FF300R12KE3 pdf, voltage drop at 250amps =...
Forum: Open ReVolt: open source DC motor controller 07-23-2017, 11:48 AM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Or we you could continue with the big cat theme...

Or we you could continue with the big cat theme and call it "Panther"
Positively Awesome n Totally Hot Electric Race Controller
Forum: Open ReVolt: open source DC motor controller 01-06-2017, 09:08 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Hi Paul Yes the Controller is working great. I...

Hi Paul
Yes the Controller is working great. I have about 12K miles on it now and it has never let me down at all.

The controller is very meaty compared to other controllers I have owned. It...
Forum: Open ReVolt: open source DC motor controller 01-05-2017, 05:26 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Here is the post from Paul where he explained the...

Here is the post from Paul where he explained the Hall Effect modifications to the igbt controller board before:

...
Forum: Open ReVolt: open source DC motor controller 09-30-2015, 09:02 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Here is a copy of the schematic and a excellent...

Here is a copy of the schematic and a excellent video with links to firmware.

http://ecomodder.com/forum/showthread.php/paul-sabrinas-cheap-diy-144v-motor-controller-6404-701.html#post469297
...
Forum: Open ReVolt: open source DC motor controller 08-01-2015, 05:34 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Paul Thanks for developing a truly great...

Paul
Thanks for developing a truly great controller. I have had it in the truck for over a year now. In 2500 miles it has never missed a beat, it is smooth, and it delivers the power. :thumbup:...
Forum: Open ReVolt: open source DC motor controller 04-11-2015, 07:31 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Articus For testing you can replace the current...

Articus
For testing you can replace the current transducer with two equal resistors wired as a voltage divider to put 2.5v on the current sense line. That way the controller thinks it is producing...
Forum: Open ReVolt: open source DC motor controller 04-11-2015, 12:57 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Are you using a preprogramed chip from Paul? If...

Are you using a preprogramed chip from Paul? If not, have you successfully loaded the unified firmware?

Index of /firmware/cougar-v1.11b/hexfiles-m168...
Forum: Open ReVolt: open source DC motor controller 02-23-2015, 07:38 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
bedacz Is there a reason you are using Rev...

bedacz

Is there a reason you are using Rev 2D? Most people use Rev 2C and most of the available documentation is for 2C. I think Rev 2D was a special purpose version and I'm not sure it was ever...
Forum: Open ReVolt: open source DC motor controller 01-19-2015, 10:43 AM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
I find temperature rise to be pretty slow with...

I find temperature rise to be pretty slow with just a fan for cooling. Paul must of made them pretty efficient :)

Are you using a fan or heatsink?
Forum: Open ReVolt: open source DC motor controller 12-15-2014, 02:04 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Okay overtemp has not been a problem so far but...

Okay overtemp has not been a problem so far but fixing the software would be good.

Also we discussed having the software pull the main contactor if the power section failed shorted. ...
Forum: Open ReVolt: open source DC motor controller 12-14-2014, 05:56 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
I have been using one in a converted pickup for a...

I have been using one in a converted pickup for a little over 1000 miles now. If you check for posts under my userID I have made a few driving reports.

So far the controller is completely...
Forum: Open ReVolt: open source DC motor controller 10-15-2014, 12:15 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Duncan If you are happy with the software as...

Duncan
If you are happy with the software as Paul provides it than you don't really need the serial port. If you like to tweak the variables yourself, than that is done through the serial port...
Forum: Open ReVolt: open source DC motor controller 09-29-2014, 05:50 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Paul is right about the controller being smooth. ...

Paul is right about the controller being smooth. It responds to the pedal beautifully - even when creeping along with the motor barely turning. The controller also responds well to sudden throttle...
Forum: Open ReVolt: open source DC motor controller 08-28-2014, 09:46 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
The sound level is nice. It is enough that you...

The sound level is nice. It is enough that you can tell when you apply power, but not annoying at all.

The meter was not disturbed by the controller. However I have the parts for the noise...
Forum: Open ReVolt: open source DC motor controller 08-28-2014, 11:53 AM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Sorry Paul I 've been distracted on other stuff. ...

Sorry Paul I 've been distracted on other stuff. I will put the code in right now. I got quite a bit of running around to do today so it will get a good test.

Edit:
First reactions; it works,...
Forum: Open ReVolt: open source DC motor controller 08-20-2014, 12:40 AM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
I installed the fixed frequency software you just...

I installed the fixed frequency software you just sent and the meter is no longer going bonkers. The spread spectrum must generate a little more noise.

I prefer the spread spectrum. When the...
Forum: Open ReVolt: open source DC motor controller 08-20-2014, 12:25 AM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Paul ignore my previous answer to this question. ...

Paul ignore my previous answer to this question. The design of the 'EV display has changed significantly since I bought mine. Mine has a built in dc-dc and does not require an external one.
Forum: Open ReVolt: open source DC motor controller 08-19-2014, 09:58 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
I traded Emails with Dimitri of CleanPowerAuto. ...

I traded Emails with Dimitri of CleanPowerAuto. They have seen this type of EMI from newer controllers and they recommended a simple filter to add to their device:

http://i.imgur.com/jGmvsf4.jpg...
Forum: Open ReVolt: open source DC motor controller 08-19-2014, 07:33 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
A new problem... For monitoring battery...

A new problem...

For monitoring battery charge I use an 'EV Display' from Cleanpowerauto

EV Display - CleanPowerAuto LLC (http://minibms.mybigcommerce.com/products/EV-Display.html)

The...
Forum: Open ReVolt: open source DC motor controller 08-19-2014, 12:47 AM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Okay did some experimenting Being mounted to...

Okay did some experimenting

Being mounted to the firewall has nothing to do with it. bad guess

The 5V supply from the controller is fine it remains at 4.94V.

Drum roll ......

The...
Forum: Open ReVolt: open source DC motor controller 08-15-2014, 04:59 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
Hall effect throttle installed and working. Very...

Hall effect throttle installed and working. Very nice to drive. I think I was abusing the controller with the previous noisy pot, it is much happier now.
Jerald
Forum: Open ReVolt: open source DC motor controller 08-14-2014, 10:55 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
The the new hall effect PB-6 throttle box clone...

The the new hall effect PB-6 throttle box clone has arrived from China. I have installed it on the truck and made the wiring changes to the controller board.

It came without a datasheet of any...
Forum: Open ReVolt: open source DC motor controller 08-12-2014, 11:15 PM
Replies: 7,381
Views: 2,410,216
Posted By jedsmd
I am still using the original (brand new) Curtis...

I am still using the original (brand new) Curtis throttle pot that was causing problems before. My substitute pot isn't in a pot box and so isn't suitable for driving in traffic.

Looking forward...
Showing results 1 to 25 of 54
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