Search found 2140 matches

by ElectricGod
Dec 15 2018 12:24am
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 50
Views: 1313

Re: Epic 7kw+ 12 fet controller...or there abouts :)

The mosfets arrived today. https://i1055.photobucket.com/albums/s515/rkenders/EV%20Stuff/Motor%20Controllers/12%20FET%207kw%20PV%20controller/CSD19536%20TI%20mosfets.jpg My bench is grounded. There's a long section of 2"x2" angle aluminum across the front edge of the bench. It has a 16 awg wire goin...
by ElectricGod
Dec 14 2018 5:46pm
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 50
Views: 1313

Re: Epic 7kw+ 12 fet controller...or there abouts :)

Surely the one big heatsink or one cpu cooler should be plenty. :shock: Heat will be the biggest enemy to longevity in this 12 fet. Keeping the mosfets cool will matter a lot. I am going for 7kw+++ in a 12 fet running TO-220 mosfets. I'm looking to get pretty darn close to the leg limits of the TO-...
by ElectricGod
Dec 13 2018 4:20pm
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 50
Views: 1313

Re: Epic 7kw+ 12 fet controller...or there abouts :)

Changed my mind... This is just ridiculous with that heat sink hanging off the side of the controller. The 2 CPU coolers will be plenty despite not being mounted directly to the mosfet wall. I don't know yet, but the dual CPU coolers may be overkill and I can use this heat sink in place of them. htt...
by ElectricGod
Dec 13 2018 2:43pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

For many of us, we are not even competent enough to do our own controller-work-repair anyway so we might as well don't care too much. And that's why in just about any city anywhere are people like me working for companies that do these kinds of repairs. I haven't done component level repair as a jo...
by ElectricGod
Dec 13 2018 12:37pm
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 278
Views: 21594

Re: Nucular electronics - complete kit for ev! [beta]

tahitiboob wrote:
Dec 13 2018 4:42am
As usual electriGod well edited beautiful photo,I look forward to seeing the rest of your tests.
Thanks for the compliment!
I want to make what I do repeatable by anyone. That means good descriptions and pictures.
by ElectricGod
Dec 13 2018 12:32pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

OK...NVM...going to use the P-word. lol! Potting has it's place to be sure. If it's life or death, by all means make those electronics as hard as possible to damage as can be done. OF course on any kind of commercially made airplane the cost for parts is insane. A simple 12v light bulb that can be f...
by ElectricGod
Dec 13 2018 4:09am
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

In my testing, conformal coating made only a few minutes difference from uncoated in salt-fog testing. Potting entirely prevents the failure. This is because conformal coating leaves the upper sharp geometry edges thin/pinholed. I experimented with multi-layer sprayed conformals, dipped conformals,...
by ElectricGod
Dec 13 2018 3:30am
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 50
Views: 1313

Re: Epic 7kw+ 12 fet controller...or there abouts :)

A bit more work done on the shell and cooling... This is the CPU cooler adapter plate. I got the top of the controller shell drilled and tapped for M3 to mate to the adapter plate. The close up shot is showing 2 dots in the aluminum...registration marks so I know how the plate orients to the top of ...
by ElectricGod
Dec 12 2018 11:10pm
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 50
Views: 1313

Re: Epic 7kw+ 12 fet controller...or there abouts :)

Work from last night... CPU cooler mounting plate. This will screw down to the top of the controller via 6 M3 screws. I need to transfer those 6 screw positions to the top of the controller shell yet. https://i1055.photobucket.com/albums/s515/rkenders/EV%20Stuff/Motor%20Controllers/12%20FET%207kw%20...
by ElectricGod
Dec 12 2018 11:07pm
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 278
Views: 21594

Re: Nucular electronics - complete kit for ev! [beta]

I finally got around to setting up a 12 fet controller. I looked at the documentation long enough to figure out the wiring, but never looked at programming. I wanted to see if I could make the controller run without reading anything. Historically FOC controllers have been fairly difficult to configu...
by ElectricGod
Dec 12 2018 10:30pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46445

Re: bluetooth BMS?

One more post on this BMS... Small components, board top: The large IC in the orange box is the charge controller. I don't know what part it is. The red box looks like 2 DC-DC converters. Probably one supplies 5 volts and the other 12 volts. Under the grey thermal gap filler in the green box is a b...
by ElectricGod
Dec 12 2018 10:26pm
Forum: E-Bike Non-hub Motor Drives
Topic: Full suspension mountain bike Friction Drive
Replies: 103
Views: 4199

Re: Full suspension mountain bike Friction Drive

This is a cool build! Totally stealth too. Probably 90% of people just looking at your bike standing still would ever know it has a motor under the BB and that your "bottle" is small battery pack. I didn't read the thread...just looked at the pics. I think I'd try to incorporate it somehow into the ...
by ElectricGod
Dec 12 2018 7:43pm
Forum: Stand-up E-scooters and E-skateboards
Topic: 50mph Razor E300
Replies: 25
Views: 853

Re: 50mph Razor E300

I'd try grab a gas guzzler that's spares or repairs and pull the old block and box the area up making it a battery tray and swap the rear wheel to a big boy hub 14kw form QSmotors with a 92v sabvoton contoller and enough 96v battery to discharge at 200amps and then you will be able to hit the magic...
by ElectricGod
Dec 12 2018 7:20pm
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 50
Views: 1313

Re: Epic 7kw+ 12 fet controller...or there abouts :)

Popped a few mosfets last night doing a test... I ordered 30 CSD19536KCS. I didn't have any on hand and I was down to 5 AOT290's. Oh thats sad to hear. Could you say more about the "test" and did the FET's really pop? Because mine had just a short and no burn marks etc. Those damn cheap fake part's...
by ElectricGod
Dec 12 2018 3:18pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

Yes, can we all agree that EG has a point but it's been stated enough/too many times now. I'd like to hear some user stories at the absolute max output side of things :D And samd i guess you'll want to explain how the controllers died :D now that the questions out there, I'd like to hear that too. ...
by ElectricGod
Dec 12 2018 2:12pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

Admins can you please remove the troll Sent from my iPhone using Tapatalk That is rude man. ElectricGod wrote a very informational and neutral piece to potential buyers of these controllers. Move on. Thank you! I deliberately chose to NOT attack anyone, but to present facts only. I understand the h...
by ElectricGod
Dec 12 2018 12:49pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Potting and electronics repair

After this, I promise, I won't mention "potting" again in this thread. I'll use "some other term". Depending on which one of these groups you fit into, potting is good or bad for you. 1. For OEMs and parts sellers, potting is brilliant. They know the electronic device can't be repaired so they get t...
by ElectricGod
Dec 11 2018 11:18am
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 50
Views: 1313

Re: Epic 7kw+ 12 fet controller...or there abouts :)

Popped a few mosfets last night doing a test...

I ordered 30 CSD19536KCS. I didn't have any on hand and I was down to 5 AOT290's and didn't have any of the mosfets already in the controller. Of course the actual mosfet installed was out of stock everywhere.
by ElectricGod
Dec 10 2018 5:10pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

Good lord we've jumped the shark. Haven't checked in and it looks like a bunch of kids squabbling and ranting. Its a small controller with high power capability. They use thermal potting. For thermal management. I suggest you move on son. Another investor in Mobipus...good for you! I really hope yo...
by ElectricGod
Dec 07 2018 3:25pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

Mobipus is selling a huge volume of controllers to dealers globally. There is the rare customer that owns a soldering and knows how to use it, but...I'm guessing that's less than 1% of their customers. If given a choice, I would source one with no potting, but...my main interest in Mobipus is that....
by ElectricGod
Dec 07 2018 2:33pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

The Mobipus controller is OEM level quality and reliability that's much more accessible than others. I'm not implying anything about the Mobipus controllers at all. 1. They are potted. AKA 100% non-servicable...which I really don't like! 2. They have not been around long enough to see what kinds of...
by ElectricGod
Dec 05 2018 3:31pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 831
Views: 46445

ICGOGOGO is on ebay now

Hi everyone, ICGOGOGO has put their product line on ebay. The cost is a little higher thanks to ebay fees, but for folks skittish about buying on aliexpress, now you have paypal and ebay backing up your purchase. https://www.ebay.com/usr/icgogogo?_trksid=p2047675.l2559 Just a few of my favorite thin...
by ElectricGod
Dec 05 2018 2:31pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

Don't know how it is with Fet's and other controller components. But from the pc and server world they got different quality on CPU's from the same batch. Maybe it is like that for controller components too? What I am thinking of is that if you buy the higher rated components before putting togethe...
by ElectricGod
Dec 04 2018 7:58pm
Forum: Items for Sale - New
Topic: Mobipus Controller Official
Replies: 30
Views: 2095

Re: Mobipus Controller Official

When will this have an android or IOS app?

There's no way when I already have 3 android phones and an iphone 6 that I'm going to buy a windows phone too!
by ElectricGod
Dec 04 2018 7:55pm
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 13419

Re: Mobipus Controllers

Potting is better than coating for both heat dispersion and moisture protection so for many users the potted controller is an advantage. Who hasn't had a controller die from water damage? 8) Water damage? Me? Never...other reasons...well several times... =( It's soooo easy to seal up a controller s...