07-20-2015, 03:20 PM
|
#1881 (permalink)
|
|
EcoModding Apprentice
Join Date: Nov 2012
Location: East Midlands
Posts: 180
Thanks: 13
Thanked 81 Times in 52 Posts
|
Perhaps we shuld open a specific thread for the boost converter?
Paul have you still got that PCB layout for the gate driver IC, showned a couple posts behind?
The issue I'm having is the compromise between using a single big IGBT with a huge inductor at 20Khz or so or going SIC mosfet's at a few hundred Khz, perhaps interleaved, with much smaller size/higher efficiency. I havent been able to find such a thing as a 200A mosfet in a brick package, rated for 600V.
Not to forget I plan to use the same setup for a high power vehicle charger, which complicates things (EMI/Harmonic compliances). I'm wondering how none of you guys ever mentioned the charger, how do you people charge!??
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
07-21-2015, 12:46 PM
|
#1882 (permalink)
|
|
Master EcoModder
Join Date: Sep 2010
Location: Saskatoon, canada
Posts: 1,488
Thanks: 749
Thanked 565 Times in 447 Posts
|
Quote:
Originally Posted by cts_casemod
Perhaps we shuld open a specific thread for the boost converter?
|
Sounds like a plan. I'm interested in a boost converter for several projects.
Quote:
|
The issue I'm having is the compromise between using a single big IGBT with a huge inductor at 20Khz or so or going SIC mosfet's at a few hundred Khz, perhaps interleaved, with much smaller size/higher efficiency.
|
I read about IGBTs from someone ... around January of this year .. GaS? 100 KHz, 1200V. Something like that. It looked very interesting - the inductors were so much smaller that the extra cost was *ALMOST* a wash. They were actually for sale, not just sampling, so I had missed the sample announcement somehow.
Quote:
|
I'm wondering how none of you guys ever mentioned the charger, how do you people charge!??
|
I bought a charger .. and I don't have my EV running as yet - since I blew up the Netgain Industrial Controller  |
|
|
|
|
07-21-2015, 04:19 PM
|
#1883 (permalink)
|
|
EcoModding Apprentice
Join Date: Nov 2012
Location: East Midlands
Posts: 180
Thanks: 13
Thanked 81 Times in 52 Posts
|
|
|
|
|
|
07-21-2015, 07:11 PM
|
#1884 (permalink)
|
|
Permanent Apprentice
Join Date: Jul 2010
Location: norcal oosae
Posts: 523
Thanks: 351
Thanked 314 Times in 215 Posts
|
Great! thanks for starting that thread.
Didn't someone here suggest using a controller that could handle 4 pairs of switches, using the two extra for the boost converter?
I like that from the integrated design perspective - also it may be easier for the motor controller functions to interact with the boost controller functions in order to obtain an optimum operating point.
Thoughts, Paul? Or would this make the motor controller function much more difficult?
- E*clipse
|
|
|
|
|
08-03-2015, 10:38 AM
|
#1885 (permalink)
|
|
PaulH
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832
Thanks: 1,368
Thanked 1,202 Times in 765 Posts
|
Hello, sorry i have been working in oregon for the last few weeks and havent been on the internet much at all. Im doing a charger right now that is almost identical to a 3 phase controller, that does a full bridge output with a boost input yhat is for power factor correction. I'll be back home in a couple more weeks and will get back to helping thingstodo. My wife was recently diagnosed with MS and I've been pretty busy with helping with the kids and stuff, but a major diet change has been helping her, and she is getting some mobility back.
|
|
|
|
|
08-03-2015, 11:14 AM
|
#1886 (permalink)
|
|
AC-DC enthusiast
Join Date: Nov 2009
Location: Long Island, NY
Posts: 282
Thanks: 123
Thanked 54 Times in 37 Posts
|
I'm sorry to hear about her illness. I'll keep her in mind during my prayers.
__________________
. .. .. . .... ...
Prius Absolutum Dominium . ..........KOPPER
PHEV conversion since Dec 2006.. . .... .Future EV
. . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !!
. . . . . . . . . . . . . . . . .. . ........
|
|
|
|
|
The Following User Says Thank You to mrbigh For This Useful Post:
|
|
|
08-03-2015, 11:28 AM
|
#1887 (permalink)
|
|
PaulH
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832
Thanks: 1,368
Thanked 1,202 Times in 765 Posts
|
We would really appreciate that.
|
|
|
|
|
08-03-2015, 01:06 PM
|
#1888 (permalink)
|
|
Permanent Apprentice
Join Date: Jul 2010
Location: norcal oosae
Posts: 523
Thanks: 351
Thanked 314 Times in 215 Posts
|
I'm sorry to hear that, Paul.
I'll e-mail some of the information I have about it; we have a friend who's been able to get her ms into remission. She works as a nurse and does long bike rides (100miles) and hikes for fun. There's hope. 
Take care,
E*clipse |
|
|
|
|
The Following User Says Thank You to e*clipse For This Useful Post:
|
|
|
08-03-2015, 01:10 PM
|
#1889 (permalink)
|
|
EcoModding Apprentice
Join Date: Feb 2010
Location: Northern Wisconsin
Posts: 137
Thanks: 32
Thanked 39 Times in 23 Posts
|
Paul
Sorry to hear that -- Google Moducare and MS - see if that makes sense and helps.
Dave
__________________
Dave  ...
|
|
|
|
|
The Following User Says Thank You to dave koller For This Useful Post:
|
|
|
08-04-2015, 12:58 AM
|
#1890 (permalink)
|
|
Master EcoModder
Join Date: Sep 2010
Location: Saskatoon, canada
Posts: 1,488
Thanks: 749
Thanked 565 Times in 447 Posts
|
Quote:
Originally Posted by MPaulHolmes
Im doing a charger right now that is almost identical to a 3 phase controller, that does a full bridge output with a boost input yhat is for power factor correction.
|
Cool!
Quote:
|
I'll be back home in a couple more weeks and will get back to helping thingstodo. My wife was recently diagnosed with MS and I've been pretty busy with helping with the kids and stuff, but a major diet change has been helping her, and she is getting some mobility back.
|
Take care of your wife and family - I can wait!
|
|
|
|
|
The Following User Says Thank You to thingstodo For This Useful Post:
|
|
|
