EV Digest 3356
Topics covered in this issue include:
1) Re: Zilla Extremes
by Rich Rudman <[EMAIL PROTECTED]>
2) Re: death of a DCP raptor
by Rich Rudman <[EMAIL PROTECTED]>
3) Re: Cheap magnachargers on eBay
by Rich Rudman <[EMAIL PROTECTED]>
4) Re: Report: Investigation of breakdown of the SAFT STM5-100 battery
by Ralph Merwin <[EMAIL PROTECTED]>
5) Re: Is this mad? (Re: AC/DC hybrid drive combo?)
by Lee Hart <[EMAIL PROTECTED]>
6) Re: TS 90Ah production?
by Victor Tikhonov <[EMAIL PROTECTED]>
7) Re: Motor Slotted Ring to Adjust Timing (Re: Sparrow reborn)
by "Joe Smalley" <[EMAIL PROTECTED]>
8) Re: Zilla Extremes and corporate EE's
by Rod Hower <[EMAIL PROTECTED]>
9) Re: Edan 100Ah cells
by Peter VanDerWal <[EMAIL PROTECTED]>
10) Re: Carbon pile? and blowers
by Rod Hower <[EMAIL PROTECTED]>
11) Re: Motor Slotted Ring to Adjust Timing (Re: Sparrow reborn)
by "Joe Smalley" <[EMAIL PROTECTED]>
12) Re: Is this mad? (Re: AC/DC hybrid drive combo?)
by "Joe Smalley" <[EMAIL PROTECTED]>
13) Re: death of a DCP raptor
by Seth <[EMAIL PROTECTED]>
14) Re: Cheap magnachargers on eBay
by "Joe Smalley" <[EMAIL PROTECTED]>
15) Tevan part and corporate idiocy
by Rod Hower <[EMAIL PROTECTED]>
16) Re: Edan 100Ah cells
by Peter VanDerWal <[EMAIL PROTECTED]>
17) Re: death of a DCP raptor
by Rod Hower <[EMAIL PROTECTED]>
18) Re: Tevan part and corporate idiocy
by Derrick J Brashear <[EMAIL PROTECTED]>
19) Re: High Voltage DC/DC
by Peter VanDerWal <[EMAIL PROTECTED]>
20) Re: Tevan part and corporate idiocy
by Rod Hower <[EMAIL PROTECTED]>
21) Re: High Voltage DC/DC
by Seth <[EMAIL PROTECTED]>
22) Re: Edan 100Ah cells
by Jude Anthony <[EMAIL PROTECTED]>
23) XCD install update, questions and a doh!
by [EMAIL PROTECTED]
24) Re: Edan 100Ah cells & New ethanol reformer
by Lightning Ryan <[EMAIL PROTECTED]>
25) Re: High Voltage DC/DC
by "Joe Smalley" <[EMAIL PROTECTED]>
26) Re: XCD install update, questions and a doh!
by "Joe Smalley" <[EMAIL PROTECTED]>
27) Chrome and text only, duh
by JD & Heather <[EMAIL PROTECTED]>
--- Begin Message ---
John Wayland wrote:
>
> Hello to All,
>
> Seth Murray wrote:
>
> > Hi Otmar,
> >
> > Thanks for such a lengthly and interesting response. This motor
> > control stuff is really cool and I'm glad you like sharing some of your
> > expertise.
>
> Those new to the EV since, say, post nineties, should take note about Oat's
> expertise in
> controller design and manufacture.
>
> In an era when the standard conversion type EV motor controllers were the Curtis
> 1221B,
> the Auburn Kodiak, and a few other 400-600 amp, 120-156V models by various makers,
> Oat
> blew in with no college degree or other documents to wear on his shoulder (high
> school was
> too boring for him) and made a controller capable of triple the amperage power
> levels and
> able of running at before unheard of voltages up 336V! Where it's proven difficult
> for
> major manufacturers with rooms full of engineers to make a controller that runs at
> 120V
> and 400 amps 'and' stays reliable....in between trips to Burning Man to hang with the
> artsy fartsy crowd, Oat builds a controller that blows them all into the bushes!
>
> Keep in mind, that when Oat talks of the three controllers that had a problem, one
> was
> hooked up backwards by college students, one was at the cruel hands of Crazy Rod
> (run at
> super duty loads without its cooling system...tortured), and one was running the
> world's
> quickest EV...just a bit of a load test! Out of interest, Dennis caught his hair on
> fire
> when the controller, mounted right behind his head, ignited the wind-fluffed Berube'
> hair
> ball! How Oat could tell the story of that blown controller and 'not' include the
> famous
> flaming Berube', is beyond me!
>
> The Zilla controllers power up the most of the world's record setting, quickest EVs
> with
> over a half megawatt of steady power. They do it without resorting to goofy squeal
> inducing frequencies, they do it reliably, and they do it while other controller
> manufacturers play catch up to a man that can be found in a seedy unground garage
> racing
> grocery carts powered by electric motors with flames shooting out the back, cruis'n
> through the desert with a couple of au'natural ladies in a 12 foot high electric
> tricycle
> he just threw together, flying around in a Frankenstein s-t-r-e-t-c-h-e-d VW bus
> with a
> 780 watt sound system pump'n, or popping wheelies in a twin motor electric couch down
> College Ave. in Palo Alto!
>
> See Ya......John Wayland
OOO!! Otmar better save this one as add copy!!
--
Rich Rudman
Manzanita Micro
www.manzanitamicro.com
1-360-297-7383,Cell 1-360-620-6266
--- End Message ---
--- Begin Message ---
Seth wrote:
>
> Freewheeling diodes again
>
> On eBay now if you search under SOT-227 and include desciptions in the
> search, you will find dual channel 60A 600V fast recovery diodes from
> IXYS. So if you have a higher voltage pack (like 192 or 240V), these
> might be for you, but you would need to parallel them. 4 of them is for
> 8 total diodes, 8 would be 16. My personal preference would be to use
> larger individual diodes, but they are more rare and expensive.
>
> Right now they are at ~5 British pounds for 4 pieces.
>
> Seth Allen
Humm famillure device. I had one in my hands at the SEVA meeting
Tuesday, it came out of a KiloVac Sparrow drive.
It was a Ixys part. It was blown from what they tell me.
I have the APT version APT2x61D60BJ in every PFC20 and 30 power stage.
Very nice device. I have no plans on changing the design.
They are 60 amps each for a 120 amps in paralel.
The Apt part has some other notable specs.
Ultra fast soft recovery.
Trr of 90nS
600 amp Non repeditive pulse.
1.75 Max Junction voltage drop
Rtheta of 0.66 DegC/Watt.
I use them as the high speed rectifiers in the chargers.
--
Rich Rudman
Manzanita Micro
www.manzanitamicro.com
1-360-297-7383,Cell 1-360-620-6266
--- End Message ---
--- Begin Message ---
Diana Trevino wrote:
>
> Next Question, (I will get the picture asap) Where is the AC voltage
> rectified, in the receptacle or the charge controller? We have a small
> paddle charger but nothing gets to the batteries. The cable from the
> receptacle to the charge controller has a bunch of black leads on one
> terminal and a bunch of white leads on one terminal. (I have tried
> uselectricar.com for schematics , but no luck on the charge circuit) . There
> is neither AC or DC on these leads. I am assuming the AC gets to the charger
> controller where it is rectified and sent on to the contactors to the
> batteries. A card where the contactors are that come from the charge
> controller is fried. I am trying to bypass some things to get the batteries
> charged with the one small paddle (1000w) charger that we have untill I can
> get another charger. This is a 3/4 ton cheve pickup we are working on. The
> prizm is identical except some things are in different places. Neither
> vehicle will accept a charge with that paddle charger. I am trying to build
> a 400 volt charger to charge the batteries directly.
> ----- Original Message -----
> From: "Christopher Zach" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Friday, February 13, 2004 3:23 PM
> Subject: Re: Cheap magnachargers on eBay
>
> > Ok, that's interesting. On my Prizm the front radiator section is
> > intact, that's where the AC condenser and main radiator are.
> >
> > If it is a real MC port, than any MC paddle will work. There were two
> > types, a large paddle and a small paddle. The small paddle could work in
> > large paddle cars with a little carrier thingie that also converted the
> > optical interface to the large paddle RF standard.
> >
> > Picture is worth a million words. Take a few and we'll see if we can
> > figure this out.
> >
> > Chris
> >
> >
The rectifiers are in the toaster slot. AC in from the paddle gets
rectified, and sent out AS DC into the EV. This explains why the Toaster
slot has 10,200 RPM cooling fans.
Not only do you have the transfromer losses but the rectifier losses are
there also.
I would love to have a Magna charger complete to play with as a Antique
sample.
I know that if I need 60 MM fans with a REAL agressive attitude, I can
find ones that suck about 50 watts and make a LOT of airflow. Let's
pray I don't have those kind of losses in a PFC charger!!! Well not
until I get to 25Kw or greater power flow.
Rich Rudman
Manzanita Micro
www.manzanitamicro.com
1-360-297-7383,Cell 1-360-620-6266
--- End Message ---
--- Begin Message ---
"Wow" indeed! The report does talk about similar symptoms to what I saw,
and a couple of the photos could easily be of batteries in my old pack
(little volvano shaped holes in the sides).
Here are some pictures of the more severely damages modules in my old pack:
http://www.aracnet.com/~rmerwin/prizm/nicadboom.html
Ralph
damon henry writes:
>
> Wow, that's the first time I have seen this. There are some pictures in
> there that look an awful lot like Ralph Merwin's batteries that popped. Of
> course Ralph figured that he had just been running at to high of currents as
> he was routinely taking them above the 200a continous rating for a few
> minutes, but keeping them below the 500a 10 second rating. Perhaps they
> were just defective from the beginning, or perhaps these other users were
> also pushing too many amps through them. Who knows, it could have been a
> combination of the two.
>
> I've pulled a couple out of my pack that have seemed to have their nominal
> voltage drop, but I just figured they need a good initialization charge and
> I haven't gotten around to trying it yet.
>
> http://www.danskelbilkomite.dk/report.pdf
>
> _________________________________________________________________
> Check out the great features of the new MSN 9 Dial-up, with the MSN Dial-up
> Accelerator. http://click.atdmt.com/AVE/go/onm00200361ave/direct/01/
>
--- End Message ---
--- Begin Message ---
David Chapman wrote:
>
> Lee, I just scrapped a welder out that had DC and AC windings on one shaft.
> It was ICE driven from one end and had a comm on other end and then a set of
> slip rings. I wonder if this might be a starting point for someone that
> wanted to tinker cheaply with building a AC/DC hybrid type drive? I still
> have the armature but the field and casing was toast so it got recycled. One
> could probably find another readily, they are getting pretty old and
> probably are going obsolete, made by Lincoln and I think it was a "225"
> AC/DC portable stick machine. David Chapman.
Yes; you are describing a rotary converter. Looks like a DC motor
armature, but has a commutator at one end and slip rings on the other.
--
"Never doubt that a small group of committed people can change the
world. Indeed, it's the only thing that ever has!" -- Margaret Meade
--
Lee A. Hart 814 8th Ave N Sartell MN 56377 leeahart_at_earthlink.net
--- End Message ---
--- Begin Message ---
Sorry, my bad. This should have been 50Ah out of production.
Info is as resent as 2 weeks ago. TS still can make them to
order (300 ps or more), but do not just make and stock them
ahead of time as they do with more popular 100Ah and 200Ah
cells.
90Ah cells are really were originally designed for military
application. There is nothing too special about them
other than a bit greater energy density.
I haven't heard about any 90Ah production changes.
Sorry again for my mistake, 90Ah instead of 50Ah.
(must have been thinking about 90Ah because this is
what I have in my EV...)
Victor
Guy Morin wrote:
>
> Victor Tikhonov wrote:
> >
> > Reverend Gadget wrote:
> > >
> > > If you want to do a bulk buy, you can get the TS cell
> > > from everspring marketing
> > > http://www.everspring.net/product-battery-pricing.htm.
> > > at 101 pcs the price drops to $127 per cell plus
> > > shipping, and someone should match the cells before
> > > distributing them. Compared to the Edan cells it's
> > > like four for the price of three.
> > >
> > > Gadget
> >
> > Note, this info is outdated. They better know that
> > 90Ah cells are no longer in production for quite a while.
> >
> > --
> > Victor
> > '91 ACRX - something different
>
> Hi Victor,
>
> Recently, I received some TS 90Ah LiIon cells, Jan 2004
> to be more precise. They do not seem to be in danger of
> being discontinued. Do you have information to the contrary?
>
> The 50Ah is another story though. These were the batteries
> I wanted initially, but the fellow at TS mentioned that
> production was going to wait until their new year. Which
> should be soon.
>
> How recent is your information?
>
> Regards,
>
> Guy
--- End Message ---
--- Begin Message ---
I have not seen the slotted ring photo either.
I had the end bell in my hands but no photos.
It is difficult to the even see the slotted ring without taking the end bell
apart.
Joe Smalley
Rural Kitsap County WA
Fiesta 48 volts
NEDRA 48 volt street conversion record holder
[EMAIL PROTECTED]
----- Original Message -----
From: "Edward Ang" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, February 12, 2004 8:23 PM
Subject: Motor Slotted Ring to Adjust Timing (Re: Sparrow reborn)
> Joe,
>
> I have seen those photos, but they don't show the
> slotted ring.
>
> Ed Ang
>
> --- Joe Smalley <[EMAIL PROTECTED]> wrote:
> > Look at :http://www.manzanitamicro.com/download.htm
> > Scroll down to PHOTOS about 25% of the way down the
> > page.
> > Select the fifth and sixth entries in the list of
> > photos.
> >
> > Joe Smalley
> > Rural Kitsap County WA
> > Fiesta 48 volts
> > NEDRA 48 volt street conversion record holder
> > [EMAIL PROTECTED]
> >
> >
> > ----- Original Message -----
> > From: "Edward Ang" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Thursday, February 12, 2004 10:39 AM
> > Subject: Re: Sparrow reborn
> >
> >
> >
> > > Any pictures you can post about the slotted ring?
> > >
> > > Ed Ang
> > >
> > > >
> > > >
> > > > --
> > > > Rich Rudman
> > > > Manzanita Micro
> > > > www.manzanitamicro.com
> > > > 1-360-297-7383,Cell 1-360-620-6266
> > > >
> > >
> > >
> > > __________________________________
> > > Do you Yahoo!?
> > > Yahoo! Finance: Get your refund fast by filing
> > online.
> > > http://taxes.yahoo.com/filing.html
> > >
> >
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Finance: Get your refund fast by filing online.
> http://taxes.yahoo.com/filing.html
>
--- End Message ---
--- Begin Message ---
I know the accomplishments that Otmar has made
and must say that he is a rare breed and a genius
in his field.
There are also many good control designers in the
corporate environment that are constrained to the
aspirations of the company. This often constrains
creativity and creates a product that conforms
to the corporate agenda.
I've been pushing my EV agenda at Ametek and have
had some success. Unfortunately the daily routine
of supporting everything from A to Z has left little
time to create a really good EV product like Otmar
and Rich make. I try to design on the side, but this
is quite difficult with a family of 5 and kids that
demand time (which is more important than Ametek or
EV's in my book) I still strive to create some EV
products that everybody on the list can use.
I think that goal is getting closer, but we'll see,
it depends on the company direction........
Rod
--- Rich Rudman <[EMAIL PROTECTED]> wrote:
> John Wayland wrote:
> >
> > Hello to All,
> >
> > Seth Murray wrote:
> >
> > > Hi Otmar,
> > >
> > > Thanks for such a lengthly and interesting
> response. This motor
> > > control stuff is really cool and I'm glad you
> like sharing some of your
> > > expertise.
> >
> > Those new to the EV since, say, post nineties,
> should take note about Oat's expertise in
> > controller design and manufacture.
> >
> > In an era when the standard conversion type EV
> motor controllers were the Curtis 1221B,
> > the Auburn Kodiak, and a few other 400-600 amp,
> 120-156V models by various makers, Oat
> > blew in with no college degree or other documents
> to wear on his shoulder (high school was
> > too boring for him) and made a controller capable
> of triple the amperage power levels and
> > able of running at before unheard of voltages up
> 336V! Where it's proven difficult for
> > major manufacturers with rooms full of engineers
> to make a controller that runs at 120V
> > and 400 amps 'and' stays reliable....in between
> trips to Burning Man to hang with the
> > artsy fartsy crowd, Oat builds a controller that
> blows them all into the bushes!
> >
> > Keep in mind, that when Oat talks of the three
> controllers that had a problem, one was
> > hooked up backwards by college students, one was
> at the cruel hands of Crazy Rod (run at
> > super duty loads without its cooling
> system...tortured), and one was running the world's
> > quickest EV...just a bit of a load test! Out of
> interest, Dennis caught his hair on fire
> > when the controller, mounted right behind his
> head, ignited the wind-fluffed Berube' hair
> > ball! How Oat could tell the story of that blown
> controller and 'not' include the famous
> > flaming Berube', is beyond me!
> >
> > The Zilla controllers power up the most of the
> world's record setting, quickest EVs with
> > over a half megawatt of steady power. They do it
> without resorting to goofy squeal
> > inducing frequencies, they do it reliably, and
> they do it while other controller
> > manufacturers play catch up to a man that can be
> found in a seedy unground garage racing
> > grocery carts powered by electric motors with
> flames shooting out the back, cruis'n
> > through the desert with a couple of au'natural
> ladies in a 12 foot high electric tricycle
> > he just threw together, flying around in a
> Frankenstein s-t-r-e-t-c-h-e-d VW bus with a
> > 780 watt sound system pump'n, or popping wheelies
> in a twin motor electric couch down
> > College Ave. in Palo Alto!
> >
> > See Ya......John Wayland
>
>
>
> OOO!! Otmar better save this one as add copy!!
>
> --
> Rich Rudman
> Manzanita Micro
> www.manzanitamicro.com
> 1-360-297-7383,Cell 1-360-620-6266
>
--- End Message ---
--- Begin Message ---
On Thu, 2004-02-12 at 21:43, Doug Martin wrote:
> umm... something odd about those 100AH cells when I looked at their site:
> www.edan.com.tw/Product-2002515153759.html..
Is it just me or do these look like re-badged TS batteries?
--- End Message ---
--- Begin Message ---
Rich,
Sounds like you need one of Ameteks blowers.
We were testing one today that puts out
1300 CFM at 20 inches of H2O.
It's only 14 inches in diameter and 5" thick
not including the 3HP 230Vac drive motor at
9,000 RPM.
Rod
Serious air
--- Rich Rudman <[EMAIL PROTECTED]> wrote:
> Jim Coate wrote:
> >
> > I came upon an automotive alternator tester headed
> for the trash... the
> > control panel with pretty meters and such is now
> in my basement.
> >
> > It includes some sort of stack of gray discs that
> get squished together
> > tighter as the "load" control knob is turned up.
> Is this a 'carbon pile'
> > that I have heard referred to in the past?
> >
> > The meter goes up to 300 amps... if this is a
> carbon pile, what are it's
> > likely limits? How long can it be under load?
> >
> > Picture of the potential carbon pile:
> >
>
http://www.coate.org/jim/ev/archives/tester_carbon.jpg
> >
> > and of the complete tester unit:
> >
>
http://www.coate.org/jim/ev/archives/tester_front.jpg
> >
> http://www.coate.org/jim/ev/archives/tester_back.jpg
> >
> > The rest of the tester consisted of a case with a
> 220 VAC motor inside
> > with a pulley and belt to spin the alternator
> under test.
> >
> > _________
> > Jim Coate
> > 1970's Elec-Trak
> > 1992 Chevy S-10 BEV
> > 1997 Chevy S-10 NGV
> > http://www.eeevee.com
>
> Jim and List I am LOOKING FOR THESE!!
> The one I have is a old battery tester from the 40
> or 50s. It can get
> to 1850 amps, it's what I use on the battery
> blaster!.
>
> I need about 6 of them!! The larger the better.
> Mr. Berube knows of 5000 amp verisions, but won't
> tell me where to find
> them. These are going to be apart of the field
> control on my Medium
> sized dyno.
>
> When it catches fire, put it out, write down what
> the limit was!!!! I am
> NOT kidding here!
> They do lots of amp, are adjustable, but don't shed
> the heat well.Once
> hot you need a LOT of air to cool them. No water of
> they will shatter.
> Working temps in the many hundreds of Deg F. Like
> 500F to incandesent
> temps.
> The big warning is the expand when hot, cranking in
> 1000 amp jumps up
> as the plates heat and expand, and some timed they
> jam the nut, better
> have a breaker that can be opened!!
>
>
>
> --
> Rich Rudman
> Manzanita Micro
> www.manzanitamicro.com
> 1-360-297-7383,Cell 1-360-620-6266
>
--- End Message ---
--- Begin Message ---
My fault. I stand corrected.
Rich has the slotted end bell and with the adjustment plate on the outside.
It was not a slotted ring but a slotted end bell.
Joe Smalley
Rural Kitsap County WA
Fiesta 48 volts
NEDRA 48 volt street conversion record holder
[EMAIL PROTECTED]
----- Original Message -----
From: "Joe Smalley" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, February 13, 2004 4:37 PM
Subject: Re: Motor Slotted Ring to Adjust Timing (Re: Sparrow reborn)
> I have not seen the slotted ring photo either.
>
> I had the end bell in my hands but no photos.
>
> It is difficult to the even see the slotted ring without taking the end
bell
> apart.
>
> Joe Smalley
> Rural Kitsap County WA
> Fiesta 48 volts
> NEDRA 48 volt street conversion record holder
> [EMAIL PROTECTED]
>
>
> ----- Original Message -----
> From: "Edward Ang" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, February 12, 2004 8:23 PM
> Subject: Motor Slotted Ring to Adjust Timing (Re: Sparrow reborn)
>
>
> > Joe,
> >
> > I have seen those photos, but they don't show the
> > slotted ring.
> >
> > Ed Ang
> >
> > --- Joe Smalley <[EMAIL PROTECTED]> wrote:
> > > Look at :http://www.manzanitamicro.com/download.htm
> > > Scroll down to PHOTOS about 25% of the way down the
> > > page.
> > > Select the fifth and sixth entries in the list of
> > > photos.
> > >
> > > Joe Smalley
> > > Rural Kitsap County WA
> > > Fiesta 48 volts
> > > NEDRA 48 volt street conversion record holder
> > > [EMAIL PROTECTED]
> > >
> > >
> > > ----- Original Message -----
> > > From: "Edward Ang" <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Thursday, February 12, 2004 10:39 AM
> > > Subject: Re: Sparrow reborn
> > >
> > >
> > >
> > > > Any pictures you can post about the slotted ring?
> > > >
> > > > Ed Ang
> > > >
> > > > >
> > > > >
> > > > > --
> > > > > Rich Rudman
> > > > > Manzanita Micro
> > > > > www.manzanitamicro.com
> > > > > 1-360-297-7383,Cell 1-360-620-6266
> > > > >
> > > >
> > > >
> > > > __________________________________
> > > > Do you Yahoo!?
> > > > Yahoo! Finance: Get your refund fast by filing
> > > online.
> > > > http://taxes.yahoo.com/filing.html
> > > >
> > >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Finance: Get your refund fast by filing online.
> > http://taxes.yahoo.com/filing.html
> >
>
--- End Message ---
--- Begin Message ---
If you put AC on the stator and a load bank on the slip rings, it makes a
variable torque ,variable speed drive.
Joe Smalley
Rural Kitsap County WA
Fiesta 48 volts
NEDRA 48 volt street conversion record holder
[EMAIL PROTECTED]
----- Original Message -----
From: "Lee Hart" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, February 13, 2004 3:29 PM
Subject: Re: Is this mad? (Re: AC/DC hybrid drive combo?)
> Andre Blanchard wrote:
> >
> > Looking at the AC/DC motor hybrid. Would not just a wound rotor AC
motor
> > give basically all the same advantages?
>
> Yes it could; but big ones are rare nowdays.
>
> For those who don't know what this is, a normal car alternator is an
> example of a wound-rotor AC motor. Simply short the rotor, and it can be
> run as an induction motor (slips, but relatively straightforward to
> control). Apply DC power to the rotor, and it runs as a synchronous
> motor (more efficient, but harder to control). Lock the rotor, apply AC
> to thr stator, and put a bridge rectifier on the rotor winding; it
> becomes a transformer.
> --
> "Never doubt that a small group of committed people can change the
> world. Indeed, it's the only thing that ever has!" -- Margaret Meade
> --
> Lee A. Hart 814 8th Ave N Sartell MN 56377 leeahart_at_earthlink.net
>
--- End Message ---
--- Begin Message ---
Ok, it's probably the same die in either the APT or IXYS part. Just
that APT probably costs 2X as much if it's like the stuff I priced last
week. So what are you driving at?
Seth
AKA "the cynic"
"the other Seth"
"I lost on eBay too"
"Lee Hart ASCII art fan club member #47"
On Feb 13, 2004, at 6:08 PM, Rich Rudman wrote:
Seth wrote:
Freewheeling diodes again
On eBay now if you search under SOT-227 and include desciptions in the
search, you will find dual channel 60A 600V fast recovery diodes from
IXYS. So if you have a higher voltage pack (like 192 or 240V), these
might be for you, but you would need to parallel them. 4 of them is
for
8 total diodes, 8 would be 16. My personal preference would be to use
larger individual diodes, but they are more rare and expensive.
Right now they are at ~5 British pounds for 4 pieces.
Seth Allen
Humm famillure device. I had one in my hands at the SEVA meeting
Tuesday, it came out of a KiloVac Sparrow drive.
It was a Ixys part. It was blown from what they tell me.
I have the APT version APT2x61D60BJ in every PFC20 and 30 power stage.
Very nice device. I have no plans on changing the design.
They are 60 amps each for a 120 amps in paralel.
The Apt part has some other notable specs.
Ultra fast soft recovery.
Trr of 90nS
600 amp Non repeditive pulse.
1.75 Max Junction voltage drop
Rtheta of 0.66 DegC/Watt.
I use them as the high speed rectifiers in the chargers.
--
Rich Rudman
Manzanita Micro
www.manzanitamicro.com
1-360-297-7383,Cell 1-360-620-6266
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400 VDC chargers are not as trivial to build as 120 VDC chargers.
My effort turned into the PFC line of chargers at Manzanita Micro.
You might take a look to get some ideas for what features you want to
include.
Are you trying to build a stationary or on board type?
Does Isolation matter to you?
How automatic do you want it to be?
Joe Smalley
Rural Kitsap County WA
Fiesta 48 volts
NEDRA 48 volt street conversion record holder
[EMAIL PROTECTED]
----- Original Message -----
From: "Diana Trevino" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, February 13, 2004 3:02 PM
Subject: Re: Cheap magnachargers on eBay
> I am trying to build
> a 400 volt charger to charge the batteries directly.
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I talked to my source at Chrysler today and he
said they have 'an official process' of scrapping
parts. He tried his best to get the goods for
me to support the EV drivers and TEVan operators.
Chrysler must 'contract' a company to dispose of
these parts. That means they will pay somebody to
pick up and distroy parts that can be used as opposed
to somebody picking them up for free.
Something is seriously wrong with this picture!!!!!
I will try to contact the 'demolision company', but
my guess is they'll tell me to get lost, lawyers will
not accept reasonable use of surpluss parts.
He also told me about 50 Vicor DC-DC convertors
(300Vdc max input, 120A, 13.8V output) that went
to the crusher when the TEVan program was cancled.
They also have hundreds of Chrysler Epics with AC
drives and NiMh battery packs that had 120mile range,
frying in the AZ desert awaiting their certain
unglorius death.
Go figure.
Rod
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--- Begin Message ---
> > umm... something odd about those 100AH cells when I looked at their site:
> > www.edan.com.tw/Product-2002515153759.html..
>
> Is it just me or do these look like re-badged TS batteries?
Disregard, I was looking at the wrong webpage (that'll teach me to post
when I'm taking pain killers, sheesh)
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I could be incorrect, but I believe IXYS and
APT are just packaging solutions and buy their
silicon die from the same or similar source?
I'm pretty sure neither company has their
own fab houses (they probably buy from the
same fab house in Taiwan or Korea)
Rod
--- Seth <[EMAIL PROTECTED]> wrote:
> Ok, it's probably the same die in either the APT or
> IXYS part. Just
> that APT probably costs 2X as much if it's like the
> stuff I priced last
> week. So what are you driving at?
>
> Seth
>
> AKA "the cynic"
> "the other Seth"
> "I lost on eBay too"
> "Lee Hart ASCII art fan club member #47"
> On Feb 13, 2004, at 6:08 PM, Rich Rudman wrote:
>
> > Seth wrote:
> >>
> >> Freewheeling diodes again
> >>
> >> On eBay now if you search under SOT-227 and
> include desciptions in the
> >> search, you will find dual channel 60A 600V fast
> recovery diodes from
> >> IXYS. So if you have a higher voltage pack (like
> 192 or 240V), these
> >> might be for you, but you would need to parallel
> them. 4 of them is
> >> for
> >> 8 total diodes, 8 would be 16. My personal
> preference would be to use
> >> larger individual diodes, but they are more rare
> and expensive.
> >>
> >> Right now they are at ~5 British pounds for 4
> pieces.
> >>
> >> Seth Allen
> > Humm famillure device. I had one in my hands at
> the SEVA meeting
> > Tuesday, it came out of a KiloVac Sparrow drive.
> > It was a Ixys part. It was blown from what they
> tell me.
> >
> > I have the APT version APT2x61D60BJ in every PFC20
> and 30 power stage.
> > Very nice device. I have no plans on changing the
> design.
> >
> > They are 60 amps each for a 120 amps in paralel.
> > The Apt part has some other notable specs.
> > Ultra fast soft recovery.
> > Trr of 90nS
> > 600 amp Non repeditive pulse.
> > 1.75 Max Junction voltage drop
> > Rtheta of 0.66 DegC/Watt.
> > I use them as the high speed rectifiers in the
> chargers.
> >
> > --
> > Rich Rudman
> > Manzanita Micro
> > www.manzanitamicro.com
> > 1-360-297-7383,Cell 1-360-620-6266
> >
>
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On Fri, 13 Feb 2004, Rod Hower wrote:
> They also have hundreds of Chrysler Epics with AC
> drives and NiMh battery packs that had 120mile range,
> frying in the AZ desert awaiting their certain
> unglorius death.
Tempts an honest man to auto theft. I'd love to have one.
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--- Begin Message ---
Sounds like a job fora PFC-50, not sure if a stock one can handle 400V+,
but Rich could probably build you a custom one that could.
On Thu, 2004-02-12 at 18:11, Fortunat Mueller wrote:
> This is a question for you power electronics gurus out
> there:
>
> Does anyone know a manufacturer that makes a high
> voltage and high power DC/DC converter ?
>
> I actually don't even care what the output voltage is,
> so long as it is roughly constant (+/-15% is ok)
> regardless of varying input voltage. But i am looking
> for a device that can handle input V in the 400+V
> input range.
>
> I know the vicor can do it, but I am looking for one
> that is about 5x more powerful. Maybe a few kW instead
> of a few hundred watts.
>
> any leads ?
>
> thanks
> ~fortunat
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Finance: Get your refund fast by filing online.
> http://taxes.yahoo.com/filing.html
--
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?
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--- Begin Message ---
Derrick,
I agree, I was a passenger in the Epic
at the Chrysler proving grounds in Auburn Hills.
This van performed as well as any V6 version, pulling
the 15% grade test hill with no problem carring 4
200lb passengers.
I can imagine the practical interchange with a soccer
mom, 'why do we have to travel 100 miles extra round
trip in this van when we only need to go 20 miles
everyday?, We'll says the soccer mom, we have to
prove this vehicle is impracticle for everyday
commuting, that's what George, Exxon, BP and Shell
told me!.
Heck, this van can't compare to the H2 that I need for
taking you to school, and this is not acceptable, I
need an 18 Wheeler for practical commuting, it's much
safer kids..............
Rod
--- Derrick J Brashear <[EMAIL PROTECTED]> wrote:
> On Fri, 13 Feb 2004, Rod Hower wrote:
>
> > They also have hundreds of Chrysler Epics with AC
> > drives and NiMh battery packs that had 120mile
> range,
> > frying in the AZ desert awaiting their certain
> > unglorius death.
>
> Tempts an honest man to auto theft. I'd love to have
> one.
>
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Brusa and Solectria both make them in different voltages, power levels
and isolated or not. I think Brusa offers more options.
Seth
AKA "the cynic"
"the other Seth"
"I lost on eBay too"
"Lee Hart ASCII art fan club member #47"
On Feb 12, 2004, at 8:11 PM, Fortunat Mueller wrote:
This is a question for you power electronics gurus out
there:
Does anyone know a manufacturer that makes a high
voltage and high power DC/DC converter ?
I actually don't even care what the output voltage is,
so long as it is roughly constant (+/-15% is ok)
regardless of varying input voltage. But i am looking
for a device that can handle input V in the 400+V
input range.
I know the vicor can do it, but I am looking for one
that is about 5x more powerful. Maybe a few kW instead
of a few hundred watts.
any leads ?
thanks
~fortunat
__________________________________
Do you Yahoo!?
Yahoo! Finance: Get your refund fast by filing online.
http://taxes.yahoo.com/filing.html
--- End Message ---
--- Begin Message ---
Doug Martin wrote:
Now on to my more pressing concern: why did I make such a stupid mistake on
a basic metric conversion like that? ...very troubling...
Relax, Doug. It's not like you're calculating orbits for a Mars probe
or anything. ;-)
Judebert
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* LP8.2: HTML/Attachments detected, removed from message *
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You know how I enjoy crunching numbers, so here goes...
A string of 100 cells = 360v @100Ah = 36kWh, 310kg (683 lbs), $17,500.
$486/kWh! 116wh/kg! 54kW nominal, 180kW max. (2'*8.5"*3'9") 6.38ft^3
So it looks like their density is less than the 'gold standard' t-zero
at 170 Wh/kg (roughly), but cheaper at $486/kWh which is reasonable!
They look more capable in the power area, has anyone tested any yet?
How about a string of 7*12Ah cells for my 24v scooters?
[EMAIL PROTECTED] 302Wh 3kg (6.6 lbs) ?$145
These would be great on a motorcycle!
So, is anyone ordering yet?
L8r
Ryan
PS. A new development in FuelCells, an ethanol reformer, still to large
for your car, and a lot of energy to produce the corn and ethanol...
http://www.cnn.com/2004/TECH/science/02/13/hydrogen.reactors.ap/index.html
umm... something odd about those 100AH cells when I looked at their site:
www.edan.com.tw/Product-2002515153759.html..
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They normally go to 400 VDC.
Yes, we have run them up to 450 VDC.
The input negative and the output negative are connected together
internally.
Joe Smalley
Rural Kitsap County WA
Fiesta 48 volts
NEDRA 48 volt street conversion record holder
[EMAIL PROTECTED]
----- Original Message -----
From: "Peter VanDerWal" <[EMAIL PROTECTED]>
To: "EV" <[EMAIL PROTECTED]>
Sent: Friday, February 13, 2004 6:25 PM
Subject: Re: High Voltage DC/DC
> Sounds like a job fora PFC-50, not sure if a stock one can handle 400V+,
> but Rich could probably build you a custom one that could.
>
>
> On Thu, 2004-02-12 at 18:11, Fortunat Mueller wrote:
> > This is a question for you power electronics gurus out
> > there:
> >
> > Does anyone know a manufacturer that makes a high
> > voltage and high power DC/DC converter ?
> >
> > I actually don't even care what the output voltage is,
> > so long as it is roughly constant (+/-15% is ok)
> > regardless of varying input voltage. But i am looking
> > for a device that can handle input V in the 400+V
> > input range.
> >
> > I know the vicor can do it, but I am looking for one
> > that is about 5x more powerful. Maybe a few kW instead
> > of a few hundred watts.
> >
> > any leads ?
> >
> > thanks
> > ~fortunat
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Finance: Get your refund fast by filing online.
> > http://taxes.yahoo.com/filing.html
> --
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> The problem with the world is stupidity. Not saying there should be a
> capital punishment for stupidity, but why don't we just take the
> safety labels off of everything and let the problem solve itself?
>
--- End Message ---
--- Begin Message ---
Got pictures?
I am having a hard time figuring out why you can't use 3/8 ring terminals on
a top lug.
One of the common ways to connect them is using a terminal similar to:
http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10001&langId=-1&catalogId=10001&productId=14723&catalogId=10001&classNum=208&subdeptNum=207&storeNum=9
This is not the terminal I use, but it was a photo that was handy.
Joe Smalley
Rural Kitsap County WA
Fiesta 48 volts
NEDRA 48 volt street conversion record holder
[EMAIL PROTECTED]
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, February 13, 2004 7:17 PM
Subject: XCD install update, questions and a doh!
I planned on making all my interconnects using the top posts. The cables
that
exit both battery boxes have regular flat lugs with 3/8 holes. Several of
these cables dont have enough length to cut those off and install top post
terminals, and we'd have to replace several feet of cable to change lug
ends.
Opinions and experiences greatly appreciated!!
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Sorry about that. Let's do this in text this time. Also, I need to
add that the exposed contactors (contacts?) would be under plexiglass.
I will soon start building the El Chopper and had a (possibly) neat idea
when I read the e-mail below. Harleys are an old school kind of bike and I guess
contactor controllers would fall into the same category. Are there any sort of
contactors that look good in an industrial age, clockwork kind of way? Is it
possible to nickel plate or polish them (except for the contact points of
course)? The contactors would be exposed and I think it would have the potential
to look kind of neat. Not exactly rolling science experiment, but more like the
innards of a clock. Plus, I assume a contactor controllor would be cheaper and
could get me on the road a bit quicker. I'll be using either the Scott motor or
the ADC 5.5" Ideas? Advice?
John David
Subject:
Re: AllTrax Controller Experienc
From:
"Mark Thomasson" <[EMAIL PROTECTED]>
Date:
Wed, 11 Feb 2004 17:58:11 -0600
To:
<[EMAIL PROTECTED]>
Damon, I have no Altrax experience, but that will probably be the next step
also on my 48 V motorcycle. (you're my inspiration . I think 200A is
about right for a snappy start. I currently have a 12/24/36/48v contactor
controller. Starting at 24 volts gives a 210 A peak. My sprocket ratio is
16/38. Top speed at 48v is 50 mph (195A). I only use 12v for puttering
around in parking lots.
Is there some kind of ramp limit that you can adjust on the Curtis? Mark T.
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