Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-12-2016, 01:16 PM   #2571 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,368
Thanked 1,151 Times in 754 Posts
Quote:
Originally Posted by mitsui View Post
1.I have Lem La 100-p current sensors at hand and these things require +-15V supply voltage.If I connected these to the circuit with 5v and ground would they work like yours?(like 2.5V at 0A and ~5V at max current)
If not is it possible to make an external circuit that will make the sensor reading the same format with it?
Maybe with some op amps you could do a level shift and scale of the -15v to 15v output to 0-5v.

Quote:
Originally Posted by mitsui View Post
2.Is it possible to replace 5x22uF MLCC ripple smoothing capacitors feeding bjts with single 100 uF electrolytic aluminum-tantalum ones with the polarity in mind or would reverse transients blow up these ones? If it is possible what were the reasons for choosing 60 pieces of relatively expensive capacitors?
This is a very severe environment for caps. Like 8 or 12amp pulses. Must be super low ESR. You might be able to get away with an electrolytic if it is low ESR and rated for 105degC and you keep the pulse current low by using a large gate resistor (10 Ohms or more). But in that case, you can skip the whole boost stage and just use the 2.5amp drive from the white fod8316.

Quote:
Originally Posted by mitsui View Post
3.If I supplied the dc bus voltage from a rectified high power 3 phase transformer with no ground connection and 24V from AC-DC converter fed with same grid would it cause a isolation & short circuit fault?
rectified 3 phase would probably work pretty well since it's low ripple by nature. Generally AC-DCs are isolated, so you should be fine.

__________________
kits and boards
  Reply With Quote
The Following User Says Thank You to MPaulHolmes For This Useful Post:
mitsui (02-12-2016)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-12-2016, 02:51 PM   #2572 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,368
Thanked 1,151 Times in 754 Posts
Quote:
Originally Posted by thingstodo View Post
AWESOME! If you would like someone to critique/comment on the instructions - I am available!

Paul - what do you say to an official release version number? Change the firmware from 1.00 to .. 1.1? 2.0? Make no other changes and post the source and executable, schematic files, etc on your web site?

Do you have a revision number for the instructions? Maybe 2.0?
That sounds like a good idea! It's so hard to commit sometimes because I'm always adding something. Let's say 1.1. haha.
__________________
kits and boards
  Reply With Quote
Old 02-18-2016, 10:34 PM   #2573 (permalink)
Modding for Eris
 
Thalass's Avatar
 
Join Date: Dec 2007
Location: North Bay, Ontario, Canada
Posts: 129

SilverCivic - '08 Honda Civic
90 day: 28.69 mpg (US)
Thanks: 39
Thanked 11 Times in 8 Posts
So I've been following this thread for a while, and while I hate to admit it many of the details have whooshed right over my head. So can I ask what the overall status of the project is right now? It sounds to me like you're close to a produce-able design?
__________________
Making do with a Honda Civic. Tesla Model 3 reserved. Still kinda want an SVX for fun, though.

  Reply With Quote
The Following 2 Users Say Thank You to Thalass For This Useful Post:
MPaulHolmes (02-18-2016), thingstodo (02-19-2016)
Old 02-19-2016, 02:25 AM   #2574 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,368
Thanked 1,151 Times in 754 Posts
Yes, I just submitted a surface mount board that is all one sided, so I could assemble it at home much faster than the other board. I'm planning on saving up for something like this:
http://www.liteplacer.com/

I think I'll then stick the soldered board on the website my wife made. Completed controllers would probably be more popular. I just don't want to get sued. "Bill was driving down the road, and crashed into a little old lady. He claims that none of his extensive modifications were related to the cause of the crash. You are going to jail!"
__________________
kits and boards
  Reply With Quote
Old 02-19-2016, 07:35 AM   #2575 (permalink)
AC Customs car builder
 
Join Date: Jan 2009
Location: Kansas
Posts: 51

S10 - '99 Chevy S10 Base
90 day: 23.5 mpg (US)

Purple People Eater - '95 Geo Metro LSi
90 day: 34.76 mpg (US)

Volt - '14 Chevy Volt Premium
90 day: 1680 mpg (US)
Thanks: 6
Thanked 31 Times in 14 Posts
Quote:
Originally Posted by MPaulHolmes View Post
Yes, I just submitted a surface mount board that is all one sided, so I could assemble it at home much faster than the other board. I'm planning on saving up for something like this:
LitePlacer | The Low Cost Prototype Builder's Pick and Place Machine

I think I'll then stick the soldered board on the website my wife made. Completed controllers would probably be more popular. I just don't want to get sued. "Bill was driving down the road, and crashed into a little old lady. He claims that none of his extensive modifications were related to the cause of the crash. You are going to jail!"
Set up an LLC, they're cheap!
  Reply With Quote
The Following User Says Thank You to WindyDrew For This Useful Post:
MPaulHolmes (02-19-2016)
Old 02-19-2016, 03:57 PM   #2576 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 301 Times in 171 Posts
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 from Paul
Attached Thumbnails
Click image for larger version

Name:	2016-02-19 19.51.11-800x800.jpg
Views:	115
Size:	136.3 KB
ID:	19678   Click image for larger version

Name:	2016-02-19 19.51.24-800x800.jpg
Views:	79
Size:	90.5 KB
ID:	19679  
__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
The Following 4 Users Say Thank You to jackbauer For This Useful Post:
dave koller (02-19-2016), MPaulHolmes (02-19-2016), mrbigh (02-19-2016), thingstodo (02-19-2016)
Old 02-19-2016, 04:30 PM   #2577 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,368
Thanked 1,151 Times in 754 Posts
There were a few things to look out for that just involved swapping cables (sin+ and sin-, cos+ and cos-. I think I had it cos- and cos+), and also a few settings so that the index pulse happens when QEA is high. With my regular encoder, I could do "index pulse must happen when QEA is low" in the configuration at the start of the program. But with this, index very rarely registered with that setting, so I had to do index pulse happens when QEA is high, and then it was totally glitchless. So, if it acts a little weird at first, just know that some such thing could be lurking in the shadows, but they aren't serious.
__________________
kits and boards
  Reply With Quote
Old 02-20-2016, 11:55 AM   #2578 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 301 Times in 171 Posts
the Lexus gearbox motor loves the Paul resolver board worked straight out of the box. Now if I just had those controller pcbs.....
Attached Thumbnails
Click image for larger version

Name:	2016-02-20 14.35.58-800x800.jpg
Views:	58
Size:	105.2 KB
ID:	19680   Click image for larger version

Name:	2016-02-20 14.38.38-800x800.jpg
Views:	52
Size:	96.4 KB
ID:	19681  
__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
The Following User Says Thank You to jackbauer For This Useful Post:
MPaulHolmes (02-20-2016)
Old 02-20-2016, 12:20 PM   #2579 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,368
Thanked 1,151 Times in 754 Posts
HURRAAYY!!!!!!!

They will be here in a couple weeks. sorry about the delay. To get them made cheap(er) (still really expensive) I do a long manufacturing time (4 layer). But they let me fix the silk screen so now the one mistake on the board (silkscreen mirror on 2 parts) is fixed. I also ordered some other boards set to 12 days, so sometimes what they do over there is ship the 18 day boards with the 12 day boards to save them shipping. So, it might be here in like 10 days instead of 15 or whatever.
__________________
kits and boards
  Reply With Quote
Old 02-20-2016, 12:38 PM   #2580 (permalink)
Modding for Eris
 
Thalass's Avatar
 
Join Date: Dec 2007
Location: North Bay, Ontario, Canada
Posts: 129

SilverCivic - '08 Honda Civic
90 day: 28.69 mpg (US)
Thanks: 39
Thanked 11 Times in 8 Posts
Awesome! Does the controller have a communication bus or something? I am interested in keeping 4WD on the subaru I want to convert, having two motors would be neat.

__________________
Making do with a Honda Civic. Tesla Model 3 reserved. Still kinda want an SVX for fun, though.

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Paul & Sabrina's cheap DIY 144v motor controller MPaulHolmes Open ReVolt: open source DC motor controller 7350 07-28-2021 06:32 AM
Paul & Sabrina's Cheap EV Conversion MPaulHolmes Fossil Fuel Free 542 11-12-2016 10:09 PM
Contest! Name Paul & Sabrina's controller MetroMPG Forum News & Feedback 120 10-22-2011 02:59 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com