01-15-2011, 05:37 PM
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#4261 (permalink)
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EcoModding Lurker
Join Date: Aug 2009
Location: Tn
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I have a question about IGBT's. looking at data sheets under applications some are for ac motor drive and some are for dc motor drive. what is the difference inside the IGBT?
Not that I am going to put another controller together.
alvin
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01-15-2011, 05:56 PM
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#4262 (permalink)
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EcoModding Lurker
Join Date: Jan 2011
Location: canada
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Quote:
Originally Posted by mrbigh
Adam, you could do the same for the VLA500-01 IGBT driver integrators group buy $$ deposits.
I guess at this point that to cover the minimum quantity order will be impossible, please inquire about a single unit price.
Horacio
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count me in new kid on the block igbt board and stuff got run thanks price
ken thank you!!!!! |
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01-16-2011, 05:27 AM
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#4263 (permalink)
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PaulH
Join Date: Feb 2008
Location: Seattle, WA
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Hi Alvin! Some igbts have 2 in one package, that are in series. It makes it really easy to use 3 of those to form a 3 phase bridge, which is basically the power section of a 3 phase AC controller. Other igbts are just a single transistor, which would probably be used in a DC controller, although you could also just use 6 of those in a 3 phase AC controller.
We also need a control board that has a 15v supply that shares the ground with the 5v supply, and we need the control board to do something with the desaturation fault signal from the igbt driver board.
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When I die, I would like to go peacefully, in my sleep, like my grandfather did. Not screaming and yelling like the passenger in his car.
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01-16-2011, 05:31 AM
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#4264 (permalink)
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Master EcoModder
Join Date: Sep 2009
Location: Ireland
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Paul could we just use an non isolated dc dc and send the desat signal to the overcurrent pin?
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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
www.evcbr.com
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01-16-2011, 12:51 PM
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#4265 (permalink)
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PaulH
Join Date: Feb 2008
Location: Seattle, WA
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Well shoot! I suppose we could, IF you wanted it to be simpler and more inexpensive! hahaha.
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When I die, I would like to go peacefully, in my sleep, like my grandfather did. Not screaming and yelling like the passenger in his car.
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01-17-2011, 02:50 PM
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#4266 (permalink)
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ReVolt Enthusiast
Join Date: Jun 2009
Location: Michigan, USA
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Quote:
Originally Posted by flores
Hi,
I've been searching the wiki for the PCB layout files and it seems like the links that are there are broken:
Full archives from MCUDOGS inc schematics, pcb files and software:
Power board V1d altium files --mcudogs 15 Sep 2009 (EDT)
Controller board V2d altium files --mcudogs 15 Sep 2009 (EDT)
Is there an alternative location, or can someone attach the pdf's with the pcb layout?
Thanks.
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The file links were corrected by MCUDOGS on 1-12-2011:
The Australian Electric Vehicle Asn: Open source controller
Also check out the ReVolt "OZ" Cougar on top of a Netgain motor .....
The Australian Electric Vehicle Asn: Open source controller
-Mark 
Last edited by sawickm; 01-17-2011 at 04:04 PM..
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The Following User Says Thank You to sawickm For This Useful Post:
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01-17-2011, 07:26 PM
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#4267 (permalink)
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EcoModding Noob
Join Date: Dec 2010
Location: Raleigh, NC, USA
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I've connected my thermistor and a pot, and faked the current sensor signal. I put a voltage divider across pins 3 and 4, and tapped about 2.5 V to pin 2. Apparently, the controller board likes all this as the yellow LED is now steady!
So, I should be able to look at the PWM signal at any of the G1 - G10 resistor connections, right? I'm having trouble finding it with my scope. What is the frequency there?
thanks,
Michael
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01-17-2011, 07:53 PM
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#4268 (permalink)
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PaulH
Join Date: Feb 2008
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around 15.5 kHz. It will go from 0 pwm to 100% of pwm very quickly (maybe 1 or 2 seconds?) because it will try to make the current match the throttle. Like 5% throttle will try to command 5% of 500 amps, but no amps will be there, so it will ramp pwm all the way up to 100%. By the way, you tricked it! You are one sneaky little bugger...
By the way, I should probably change that. 100% duty and no current means there's a problem under normal circumstances.
__________________
When I die, I would like to go peacefully, in my sleep, like my grandfather did. Not screaming and yelling like the passenger in his car.
Last edited by MPaulHolmes; 01-17-2011 at 08:07 PM..
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01-17-2011, 07:57 PM
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#4269 (permalink)
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AC-DC enthusiast
Join Date: Nov 2009
Location: Long Island, NY
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Quote:
Originally Posted by adamj12b
Good job Mark!
Looks like they have 15 in stock!
We can easily get 5 modules grouped. I will add another section to my site and people can get them from there. I will order then and then ship the out.
I just have to figure in a small amount for shipping from Richardson Electronics to me.
If this all sounds good I will set it up.
-Adam
Shipping is $5.20 inside the US and $13.95 International.
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I'm on the purchase with 2 pieces....
__________________
. .. .. . .... ...
Prius Absolutum Dominium . ..........KOPPER
PHEV conversion since Dec 2006.. . .... .Future EV
. . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !!
. . . . . . . . . . . . . . . . .. . ........
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01-17-2011, 08:08 PM
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#4270 (permalink)
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AC-DC enthusiast
Join Date: Nov 2009
Location: Long Island, NY
Posts: 237
Thanks: 87
Thanked 38 Times in 26 Posts
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Quote:
Originally Posted by adamj12b
Good job Mark!
Looks like they have 15 in stock!
We can easily get 5 modules grouped. I will add another section to my site and people can get them from there. I will order then and then ship the out.
I just have to figure in a small amount for shipping from Richardson Electronics to me.
If this all sounds good I will set it up.
-Adam
Shipping is $5.20 inside the US and $13.95 International.
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As soon as you make the nitche for the IGBT drivers with the Paypal collection logo, we'll be able to reach the minimum order; and I will be able to release de IGBT's driver boards with the parts kit.
__________________
. .. .. . .......
Prius Absolutum Dominium . ..........KOPPER
PHEV conversion since Dec 2006.. . .... .Future EV
. . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !!
. . . . . . . . . . . . . . . . .. . ........
Last edited by mrbigh; 01-17-2011 at 08:26 PM..
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