Go Back   EcoModder Forum > EcoModding > DIY / How-to
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-13-2010, 09:51 AM   #31 (permalink)
Wiki Writer
 
Join Date: Jul 2010
Location: Melbourne, Australia
Posts: 236

bugler - '91 Mazda 626
90 day: 35.89 mpg (US)
Thanks: 15
Thanked 25 Times in 22 Posts
electrowizard, great to see you have it all working now and looks like you learnt a lot on the way. Switching 380 amps is impressive for any electrical design.

Hope your looking forward to your next electrical challenge

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 03-29-2012, 10:45 AM   #32 (permalink)
Deyan Stoev
 
Join Date: Jan 2012
Location: Bulgaria
Posts: 6

Silver Slut - '95 Renault Laguna
Thanks: 104
Thanked 1 Time in 1 Post
How exactly do you increase dt?

Hi to everyone in this wonderful forum!!!

It is an old thread with solution, which is not really obvious to me...

Quote:
Originally Posted by electrowizard View Post
Hey guess what? My controller no longer blowing mosfets!!!

The only thing we can change is dt, the time to switch. I have increased it to 200ns. The theoretical inductance needed to fry my mosfet is now 60nH.
So, electrowizard, how exactly do you increase dt - by adding 100 om gate resistance?

Thank you in advance!

P.S. I'm on 378-th page of the thread "Open ReVolt: open source DC motor controller" and still reading that marvelous guide!

Last edited by deodeo; 03-30-2012 at 05:07 AM..
  Reply With Quote
Old 03-29-2012, 07:35 PM   #33 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,191
Thanks: 179
Thanked 1,521 Times in 1,122 Posts
"Congratulations upon your success!"

As a retired-EE, I can definitely empathize with you and your problem. Turning voltage or current ON and OFF at high rates is always a headache, even when it's NOT power, but just signal-levels that are being switched!

Today's giga-Hertz computer board traces aren't designed, they're RF-traced, as constant imedance (Z) antennas!

  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 7308 10-09-2019 03:30 AM
Hybrid PWM/Contactor controller turbo-boost bennelson Fossil Fuel Free 24 05-12-2011 11:26 AM
Hondo's new controller Hondo Open ReVolt: open source DC motor controller 12 08-03-2010 10:59 AM
Fun with Voltage Controller Heatsinks Dradus Fossil Fuel Free 14 05-02-2008 04:16 PM
Video: first high voltage power up: Mazda RX-7 with homebrew controller MetroMPG Fossil Fuel Free 1 02-10-2008 11:17 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com