chinese-ST 6 mosfet 24v-250w controller

[zEEz]

hi, parabellum
the programming port is identical to any other Infineon controller I have seen. PCB is painted white.
Schematic is overall identical to any other Infineon 6 fet ... only difference is the microcontroller:
not an Infineon but a piece from the ST 6 family. If yours has an ST logo printed on the chip it is indeed similar.
The seller I bought if from, for up to 48v and 500w is selling the same box with few changed components, going to more watt it packs more mosfets in a bigger pcb-alubox.

have fun

 

[Volter]

Hey zEEz,
I just picked up the 36v version of this controller from the same vendor as you, digital2brother.
I was wondering if you can take a photo of the sheet that came with yours and post it or pm me with it..
My instruction sheet is cut in half, mid sentence of the first part.
Does the phase learn allow me to just hook up the hall wires in any order and the controller will learn where to apply
proper phase v?

I am using this controller on a rabbit tool/sanyo motor,250w geared hub.

Thanks for your time!
cheers
-V=

 

[zEEz]

hi volter,
no problem to send you a copy of my instruction sheet, but it would be no use of it:
it was sent wrong to me by mistake and was not describing our controllers.
The correct connections are depicted in the photo in the first page of this thread.
As you can see from there, our controller is not having any 'learn' cable loop.
From what I can understand from my experience, this controller is working properly
with any permutation of the hall wires and even without hall connections.
If you try you should confirm me that it is valid for your controller too. 8)

have fun

 

[def215]

i thought i add to this thread with the controller i just got.

it came ion the mail today and i opened it up to see what was in it:

top

bottom

ive never owned an infineon or any bldc controller like this before so i might need help with identifying the insides.

as far as i can see it uses 75nf75 mosfets, i saw an lm317 so i guess thats what feeds the controller circuits, i see an ic in there that says NEC f9234, and another ic that says xc0608.

i didnt think the 6fet controllers were this small.

 

[ZOMGVTEK]

^ Thats the exact controller I purchased a little while ago for a backup. I dropped some IRFB4110PBF's in there, along with 1 mil kapton polyimide to isolate the FETS on the block, replaced all the 63V marked caps, threw some more resistance before the reg, and plugged it in.

I didn't touch the LVC on it, but i'm fairly sure I know how to modify it if need be. I left the current limit at 20A, and it was pulling a touch over 2KW on my 24S setup. I removed all the random wires that I don't know or care what they do. The throttle input is very jumpy, I wouldn't be able to use it as my daily controller, its too damn crude feeling. It does run cool under WOT clamps at only 20A, which is all I need for a backup.

 

[zEEz]

ive never owned an infineon or any bldc controller like this before so i might need help with identifying the insides.

as far as i can see it uses 75nf75 mosfets, i saw an lm317 so i guess thats what feeds the controller circuits, i see an ic in there that says NEC f9234, and another ic that says xc0608.

i didnt think the 6fet controllers were this small.

So you have an Infineon based controller: Luky YOU
Perhaps someone else can confirm if you can program it with the standard or even the
Open Source PC program for the Infineons ....

On my side, I can say that the last controller I bought from

ecrazyman

contains
a SUNPLUS microcontroller
I am very curious -waiting his website to come online- to discover if there is any program to
tune it .....

have fun

 

[def215]

thats great news!

i had a question, how do you power this controller on?

you dont have to jump anything on the alarm plug right? i have the thick black and red wire from the battery plug going to a battery(6s lipo). do i power it on with the thin red wire from the battery plug by putting it to the thick black?

 

[zEEz]

it is simple to power it up:

alarm plug: you can leave it disconnected.
Supply plug: thick wires to battery and thin red shorted to thick red to power it on. :wink:

have fun!

 

[def215]

Thanks zEEz. I did that and it powers on, but it doesnt spin the motor at all. And im pretty sure theres power. I get ~4.2v from the throttle when i plug in the battery. I guess this one doesnt do sensorless mode. time to fit the motor with some halls...lol

 

[zEEz]

hehe, for testing I use a simple trimmer as a throttle (10K).
You should care about the fact that, because of internal failsafe in the controller, it wants only
from around 1.5v to 4.2v --- so the extreme positions of the trimmer are not permitted
and usually they result in a controller-off state. :?
Moreover, it is good practice to power up the controller with the trimmer at around 1.5v ....

... but I easily believe that your problem is just the lack of the halls ....

have fun!

 

[zEEz]

As a sidenote ... I gave a look to the source code provided with the 'motor control developer Kit' for the ST6 microcontroller that is used in this 250w e-bike controller.
It is a quite complex piece of stuff: it provides Hall, sensorless, mixed, PID control and several other features ... 8)
In particular it looks like that in standard mode it is providing a fixed PWM sequence that is adapted better to the specific motor as soon as it gather a pair of cycles of valid hall data.
Of course, when the hall is disconnected, the controller continue to work indefinitely providing the standard sequence, thus explaining why it is working even when the sensor is lacking.
Additionally, it is provided also a piece of code that is gathering synchronization data from the unenergized phase (classical sensorless). 8)

have fun!