INSIDE Curtis 12xx ELECTRIC VEHICLE CONTROLLER - WE GOT IT

[bigstiggerNo1]

have u got the circiut diagrams?

[user100ja]

do you still have PCB ?

[DanFrederiksen]

pop open a zilla controller and show that in detail instead. the curtis is well known

[noubal]

How about Alltrax, heard it is epoxy sealed,

[BatteryReviver]

Haven't tried those. This Curtis was also sealed with goop. I don't suggest that you try the "boil it in water" technique suggested by one of Curtis' competitors with that Alltrax.

[Dilekz]

WOW a DC controller... Wait till you see a 3phase frequentie controller for 3phase motors.

That is like 1000 times more complicated.

This is just basic electronics.

[tsport100]

What's so mega complicated about 3 phase? It's 3 half bridges run by a microprocessor.

If you want to see how simple 3 phase can be look at a brushless RC speed controller. I've seen them fro sale as cheap as $20.00!

[terrorist420x]

Any plans to upgrade it to handle more current? I recall some company selling refurbished Curtii capable of 1,000A or more.

[wires99]

Nice work. Did you de-pot this, or do you have some inside track at Curtis?

Does this controller work, or was it already a junker?

[cant7think7clearly]

Very interesting! I paid $1500 for one of those things and it's basically empty! Amazing stuff! :)

[BatteryReviver]

Actually, its not empty. However, the parts quality and heat-dissipation design, in our opinion, are surprisingly mediocre.

[hempev]

Rows of rusty screws holding paralleled MOSFETs on a heatsink...

It would be nice to see the insides of a Zilla controller (used in the record-breaking KillaCycle), but most Curtis controllers run fork-lifts and airport tugs, so they aren't as confidential as the heart of a dragster!

[lazzer408]

Yup... Only water can get in a Curtis. They win the "how complicated can an op-amp circuit be?" award.