Search found 22 matches

by vehiculeselectriques
Apr 11 2017 7:43am
Forum: Battery Technology
Topic: Internal resistance tester
Replies: 45
Views: 3794

Re: Internal resistance tester

https://oakingtonmanor.files.wordpress.com/2014/09/dsc03489-copy.jpg Hello, after few years of careful use mine just burned today :shock: i was reading 4S LIFEPO4 voltage (A123), good polarity though after some cracking noise and bad smell it just went. now there is no more data on the LCD, only th...
by vehiculeselectriques
Jul 01 2016 2:21pm
Forum: Items for Sale - Used
Topic: EU - 48V/54V-1800Watt 30A DELTA
Replies: 41
Views: 5253

Re: EU - 48V/54V - 900Watt 18,75A Eaton power supplys - 40 E

2 units for me, 1 week shipment to europe inside double cardboard package. i'm short on freetime but impatient so i decided to adapt and test just one :mrgreen: here are the results: 54,6V unloaded 52,6V 3ohms loaded 924W peak 17,5A peak AND probably continuous as it was steady for 1mn....... then i...
by vehiculeselectriques
Jun 15 2016 3:12am
Forum: Battery Technology
Topic: DIY spot-welder, FET-switched, processor-timed adj. pulse
Replies: 599
Views: 48271

Re: JP spot welder

Please it's the JP spot welder thread don't mix it with other welder DIY, open new thread ! and please be patient Sat Apr 16, 2016 11:43 pm Just waiting on the open source info for this JP spot welder, did he post that info or is it scattered in with the battery config & weld posts? Be nice if there...
by vehiculeselectriques
Jan 17 2016 5:19am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1127
Views: 140823

Re: JP spot welder

this is resistance welding, you have to be in the right spot of contact resistance to obtain enough heat to weld. keep in mind simplified rule what you discovered yourself: at same current pushing hard equal less resistance, less heat, weaker weld pushing gently equal more resistance, more heat( so ...
by vehiculeselectriques
Jan 16 2016 2:55am
Forum: Motor Technology
Topic: LIVE NOW.. Zerocast about Zero motor!
Replies: 14
Views: 1449

Re: LIVE NOW.. Zerocast about Zero motor!

you could probably double the torque with a v shape mag config partly due to the increased reluctance torque and partly due to the increased magnet surface area (research papers and multi variate sims dont pick up on this) you may call this flux focusing but the important thing is the increases sur...
by vehiculeselectriques
Feb 04 2014 4:35am
Forum: E-Bike Technical
Topic: Awesome new FET package :) :) :) Not a geek? you won't care
Replies: 75
Views: 6357

Re: Awesome new FET package :) :) :) Not a geek? you won't

Hi,

>4 years have passed ... is there some usage news about this FET ?
by vehiculeselectriques
Dec 04 2013 9:46am
Forum: Battery Technology
Topic: BM16LP Monitor
Replies: 20
Views: 2136

Re: BM16LP Monitor

Hi I tested a BM16LF on 16 cells pack assembly, cost is arround 50$. functionnalities as 2 temperature reading, alarms, % SOC gauge etc. make it a very interesting BMS at first glance >>>BUT <<< unfortunately after testing i found: the tiny black SOC digital needle is impossible to be seen other tha...
by vehiculeselectriques
Aug 07 2013 2:20pm
Forum: Motor Technology
Topic: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)
Replies: 421
Views: 73365

Re: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)

thanks a lot for your help Thud :D i'm already racing with a 180kV SKF mounted and EB212 upgraded controller ... 48V and 137A max on the watt's up :mrgreen: i have enough acceleration but need more speed ! I have a couple 130KV to rewind and will try your 212kv solution, should be a good compromise ...
by vehiculeselectriques
Aug 06 2013 3:56pm
Forum: Motor Technology
Topic: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)
Replies: 421
Views: 73365

Re: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)

Hi thanks a lot for your advise ... though i'm racing so going near or beyond melting things point is acceptable trade for having higher performances :wink: there is C8085 250kv and this one 220kV goes up to 55V, 12000rpm ! so what is it's secret, the fan ? i have such fan also even better it's Thud...
by vehiculeselectriques
Aug 05 2013 3:20pm
Forum: Motor Technology
Topic: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)
Replies: 421
Views: 73365

Re: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)

thanks ... what spike and iron loss % level are we talking about, do you have date curves please ? 11000rpm max not sustained is ok, i'm using SKF bearings not low cost original ones. Actually under high stress motor is just warm (hand touch without problem) so i think temperature can goes up a bit,...
by vehiculeselectriques
Aug 04 2013 1:15pm
Forum: Motor Technology
Topic: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)
Replies: 421
Views: 73365

Re: Re-wind of a turnigy 80/100 (Now-tutorial w/Video)

Hi,

do you think it would be possible to rewind a 130kv for 230kv ?

actually i have 6kW solid rock out of a 180kv,
i would like to use the 11 000 rpm maximum rating of the skirt bearing as a top speed limit with 48V nominal.

thanks,
Phil
by vehiculeselectriques
May 09 2013 7:38am
Forum: Battery Technology
Topic: CellLog 8 hacking
Replies: 224
Views: 35817

Re: CellLog 8 hacking

Hello,

i'm looking for a bigger cell log 30 pin lcd 128X64 replacement, did someone identified the LCD driver it is using ?
This OLED bigger LCD
would be great (though 31 pin...)
or maybe this 30 pin one

or a fresnel lens solution ?
by vehiculeselectriques
Dec 19 2009 5:59am
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

Hi,

you will find all this informations here
by vehiculeselectriques
Dec 07 2009 6:05am
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

Hi guys,

I received it few days ago, it's a 116A chip.
The mosfet and motor hall sensors are ordered from digikey
I'm going to beef up the big current path with Ø2,5mm copper wire and play with programmation.

Phil
by vehiculeselectriques
Nov 17 2009 3:07am
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

Hello,

i'm not from canada though it's funny digikey.ca is cheaper :D
IRFB3006 should be a good candidate ! i will go on that.
thanks for all and software

Phil
other the pond :wink:
by vehiculeselectriques
Nov 16 2009 2:49pm
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

Ok i will check that once controller is here :D
thanks for program
Phil
by vehiculeselectriques
Nov 16 2009 1:34pm
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

Hello

I ordered a 12 FET instant start new infineon from ecrazyman, will see...
Where can i find the software and interface for setting it please ?
I'm still looking for IR3006 mosfet, not easy to find :(

Phil
by vehiculeselectriques
Nov 15 2009 6:08pm
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

thanks for you opinion,
mine is t: it's too big, too heavy and too expensive.

regards,
Philippe
by vehiculeselectriques
Nov 15 2009 11:28am
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

thanks guys, yes its the 180kV turnigy, great to here it can take more though i need to stay as close to 48V nominal as possible. About controller to mod, Is this one a 12 fet ? if it is, it's not expensive so maybe it's simpler purchasing it than asking unpopulated one ? thanks for all informative ...
by vehiculeselectriques
Nov 15 2009 7:55am
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Re: Help in infineon controller choice, i'm lost !

Hi Mike, thanks for your answer, for sure i was thinking 18 fet is best (more power is always best :lol:) but this one is 100V which i don't need (only 48V) 48V 100-120A few seconds) would make me happy so my question is what best controller to mod (or does it exist) to have such power ? What do you...
by vehiculeselectriques
Nov 14 2009 5:43am
Forum: E-Bike Technical
Topic: Help in infineon controller choice, i'm lost !
Replies: 24
Views: 1666

Help in infineon controller choice, i'm lost !

Hello, i'm needing a controller for playing with a brushless 48V 6kW (peak) motor 8500rpm (12P14magnets) I already found the posts about adding hall sensor... and now i'm looking for a suitable controller... infineon from ecrazyman seems to be the key but boys going through 9C, 12, 18, millions of m...