H0TR0D my controller! help me out please...

[Arlo1]

Hotrod you must understand some of us get a lot of PMs and we are trying to keep them down and only for the uber important/private things otherwise the openness of the public forum is the best place to post and get responses. Amberwolf does not get paid to work his ass off on the forum like he does and without him and others like him this place would be in shambles and you would get no help at all nor would I for that matter. Some of us don't mind a PM here and there but you must try to be patient the guys who want to help will.

Now as for your controller you need to decide if its worth it. I see some caps with motorcycles or bicycles on them... Must be good quality with those So you can get into a 12 fet for ~$100 or a 18 fet for ~$200 The 12 fet would be good for ~45-55 amps continuous and the 18 should be able to hold 100+ and they will both be good for 100v max with the right motor.

You can get 9 irfb4110 fets for you controller and upgrade the caps and mod the shunt to see what you can get but how much do you want or need??

 

[h0tr0d]

Hotrod you must understand some of us get a lot of PMs and we are trying to keep them down and only for the uber important/private things otherwise the openness of the public forum is the best place to post and get responses. Amberwolf does not get paid to work his ass off on the forum like he does and without him and others like him this place would be in shambles and you would get no help at all nor would I for that matter. Some of us don't mind a PM here and there but you must try to be patient the guys who want to help will.

I do understand. Thank you all for the patience.

In other forums I've participated, since people didn't PM'ed "normal topic things" leaving more time to respond on topic. So PM's like mine, that take 5s to read, and no need reply by PM, just on topic didn't affect forum dynamics.

Here is different and I'll respect that.

I want to change the world in transportation, not in forums.

Now as for your controller you need to decide if its worth it. I see some caps with motorcycles or bicycles on them... Must be good quality with those So you can get into a 12 fet for ~$100 or a 18 fet for ~$200 The 12 fet would be good for ~45-55 amps continuous and the 18 should be able to hold 100+ and they will both be good for 100v max with the right motor.

a 9c motor is the right motor?

You can get 9 irfb4110 fets for you controller and upgrade the caps and mod the shunt to see what you can get but how much do you want or need??

honestly, for now, I don't think I need a bigger controller. My goal is 36V 35A peak 20A continous. So first shunt mod and better heat management.

If proves insufficient, the IRFB 3077 look better for my application (or any controller up 60V) they handle more current then the 4110's and less heat also.

Regarding caps, does anyone recomend anything in particular? 1 bigger cap, 2 smaller in parallel, etc.

 

[Jeremy Harris]

The forum search capability can help with questions like this. This is what I found (posting the link is quicker than me digging out the info again): http://endless-sphere.com/forums/viewtopic.php?f=30&t=22194

 

[h0tr0d]

hi everyone!

does voltage interfer with ESR?

thanks

(moderator edit: moved your other identical question (with more info) 13 minutes after this one into the same thread out of another thread. Please post your question only once and in one thread, and be patient, and wait for someone to be able to answer.)

(second moderator edit: since you ignored the advice in both of your first two posts about this, and reposted it again in yet another unrelated thread, all of your troubleshooting posts for anything are now being moved into your "hotrod my controller" thread, for the foreseeable future. Do not post any questions outside your original thread, or they are likely to be deleted rather than moved to save moderator time).

 

[h0tr0d]

hi everyone!

does voltage interfer with ESR? Just thinking what be the difference between a 100V 470uF and a 63V 470uF (with same datasheet ESR) in a 36V controller.
And what about the quantity of energy and power that each cap can receive in both cases?

thanks!

(moderator edit: moved this to the same thread as your first version of this question made only 13 minutes before this one. Please post your question only once and in one thread, and be patient, and wait for someone to be able to answer.)

(second moderator edit: since you ignored the advice in both of your first two posts about this, and reposted it again in yet another unrelated thread, all of your troubleshooting posts for anything are now being moved into your "hotrod my controller" thread, for the foreseeable future. Do not post any questions outside your original thread, or they are likely to be deleted rather than moved to save moderator time).

 

[h0tr0d]

hi everyone!

does voltage interfer with ESR? Just thinking what be the difference between a 100V 470uF and a 63V 470uF (with same datasheet ESR) in a 36V controller.
And what about the quantity of energy and power that each cap can receive in both cases?

thanks!

(moderator edit: since you ignored the advice in both of your first two posts about this, and reposted it again in yet another unrelated thread, all of your troubleshooting posts for anything are now being moved into your "hotrod my controller" thread, for the foreseeable future. Do not post any questions outside your original thread, or they are likely to be deleted rather than moved to save moderator time).

 

[Arlo1]

hi everyone!

does voltage interfer with ESR? Just thinking what be the difference between a 100V 470uF and a 63V 470uF (with same datasheet ESR) in a 36V controller.
And what about the quantity of energy and power that each cap can receive in both cases?

thanks!

You have to quit posting the same question all over the forums!

ESR is ESR if its got a rating then thats what it is. If its says the same ESR for 50v as 100v its the same ESR. I am not the guy for the best answer but as a rule just get the lowest ESR you can afford/find!

 

[Jeremy Harris]

I'm going to give up trying to answer questions from you, h0tr0d, unless you stick to forum etiquette. You ticked a few folk off by spamming them with PMs to get their attention and now you've taken to just posting the same question in different threads. You've been politely told twice now...................

 

[opz.EST]

Dear H0TR0D, did you find more about the manufacturer of this controller? I also have it, want to mod or program. Can you help me sourcing some ideas? Or anyone else? Thanx

 

[h0tr0d]

Dear H0TR0D, did you find more about the manufacturer of this controller? I also have it, want to mod or program. Can you help me sourcing some ideas? Or anyone else? Thanx

Totally forgot to put photos...

To do list for you:
Mod the shunt like advised before
Gold plated connectors from hobbyking or similar
Swap the thin phase wires to 4mm2 with heat shrink tube
Swap the mosfets for lower RDSon or (like I did, Pentium 3 cooler) put a decent anodized heatsink with fan and the mosfets bolted directly to the heatsink
Put additional low esr caps

I have 30A now with a cooler controller. Very reliable so far.

 

[h0tr0d]

More photos

 

[opz.EST]

Thank you.
Can you also post photo of modified shunt? Do you have cruise and regen braking working?

 

[opz.EST]

can someone tell me more about this controller?
Thanx