Cheap "high voltage" esc Quest

[sikeston34m]

Are you out there Griffin?

[GriffinRU]

Originally Posted by sikeston34m

OK, I got the Brain Board lifted.

Here's a picture.

Looks like inductors, do you see any coils inside?

All the rest is clear Fet's drivers with bootstrap caps and diodes.

Also looks like you lost couple via's in process of taking it apart, not good, but can be fixed.

I can try to fix it for you, but later in April :(

[sikeston34m]

Originally Posted by GriffinRU

Looks like inductors, do you see any coils inside?

All the rest is clear Fet's drivers with bootstrap caps and diodes.

Also looks like you lost couple via's in process of taking it apart, not good, but can be fixed.

I can try to fix it for you, but later in April :(

I noticed the coupler. I can fix that.

What I'm really wondering is:

Can I remove the regulator altogether and power the brain board with an external regulator that feeds 5 volts IN through the red wire?

[GriffinRU]

Originally Posted by sikeston34m

I noticed the coupler. I can fix that.

What I'm really wondering is:

Can I remove the regulator altogether and power the brain board with an external regulator that feeds 5 volts IN through the red wire?

I don't see any reasons why not, but looks like you have two DC-DC convertors, so you need to remove diode/inductor/resistors from first one and than check if second one is still working (from smoked inductor I think it is dead too).

So to make it happy again you need to restore 5V and 12V for MCU. How you are going to do that it is up to you. I would rather check datasheet on both DC-DC convertors and fix them properly.

Are you sure MCU is not dead?

[lutach]

I have to go get my daughter at school now, but if I have some time, I'll take a picture of what I got a few months ago. It is surprising. Artur, I might send a couple more stuff for you my friend LOL.

[lutach]

I'm getting trying to figure out who makes the driver of the picture posted by sikeston34m and now I can't find the manufacturer of the MOSFET (Edit: I found the MOSFET manufacturer) of the ESC in the pictures I have attached, but look at the brain board, it looks identical and the onlu differance are a few colors of some components and the drivers are from IRF (IR2103S). Good things will come out of this. I'll go take some pictures of the big car controller with this one to see if we get a match .

[lutach]

They are the same size, but the little one was closer to the camera and it seems bigger. I also attached a side view of the little controller.

[lutach]

And 3 more.

[snellemin]

oooh, the controller looks similar. I got mine working again. Gonna test it some more tomorrow.

[snellemin]

Did some more testing during my lunch hour. This is what I found:

It will not run the 7700kv mamba motor, even with 2s2p A123. Just sits there and stutters. However it does run the 3500kv c40 hacker motor on both 2s and 4s without issues. The esc was barely warm after the packs dumped.

[jzemaxx]

How does it run on 10S???...lol. That is what I'm waiting for...hehe

[snellemin]

10 AA batteries. I'll leave it alone for now. Put some foamies in the rear for the next TNT dragrace.

[lutach]

The MGM 16018-3 handles up to 6S lipos and up to 18NC cells. Now the controllers I posted pics of also handle up to 18NC cells, but it handles up to 5S lipos. Can those controllers actually handle 6S like the MGM?

[snellemin]

Dunno man. But 5s would be the max I would put through mine. Maybe if I upgraded all the fets it would do 6s. I might try it out in the rustler that has 6s A123, and use small gearing with 3750kv hacker.

[triggeraa]

Any updates? I just ordered 2 of these escs with a programing card. I'll put them through their paces when i receive them.