Instant Start 18 fet Infineon Boards are here...

[bigmoose]

Meth, don't give up

I have dropped the idea of manufacturing these...

You may just have to define the "positioning" of your product. It does appear that a certain part of the market is getting crowded. But your 2x2 drive is not the Wall Mart product line... Now shrink those two controllers to half the size of one, and make it rock solid.

 

[methods]

DATA POINTS ON 116 TUNING SOFTWARE


Shunt Resistance: 300uOhms -> 250uOhm precision 4W shunt + solder gap to pickup lines
Motor: 9x7 9C in 25" wheel
Voltage: 91V - 95V under load
Controller: 18 Fet Methods #3

Software Setting: 15A DC / 40A Phase
Resulting Limit: 34A DC
Resulting Peak: 45A DC Peak (taken with a grain of salt)

Software Setting: 30A DC / 80A Phase
Resulting Limit: 65A DC Continuous
Resulting Peak: 90A DC Peak (taken with 2 grains of salt)

Software Setting: 57A DC / 160A Phase
Resulting Limit: Indeterminate
Resulting Peak: 209A DC Peak (usually between 160 - 170, but I *tried* to peak it out)

Subjective:

The 65A limit was nice - very similar to no limit - definitely worth the heat savings.
The 34A limit was a little anemic. Top speed is attainable but it takes some time.

Advice:

Dont run your controller at superman settings... Too much heat goes into the motor.
Even superman has to slow down and take a dump sometimes or he will crap his pants.

-methods

 

[Arlo1]

DATA POINTS ON 116 TUNING SOFTWARE





Advice:

Dont run your controller at superman settings... Too much heat goes into the motor.
Even superman has to slow down and take a dump sometimes or he will crap his pants.

-methods

Thats because its not a motor I built! Although I am just a rookie at this I plan to build something amazing. Can't wait to get you kit meth!

 

[glv]

Even superman has to slow down and take a dump sometimes or he will crap his pants.

Dude, words of wisdom.

 

[no mods]

some jackass must ask for that alot or something... ?? :wink:

 

[steveo]

FYI

I run my 18mosfet @ 88.8v .. with .1400mohms shunt ..

I've hit peaks of 157amps on a 20" xlite.. and that was hard to hit .. had to put all my weight on the front of the bike .. and she still was lifting for takeoff..

-steveo

 

[HAL9000v2.0]

How long can you drive it on 80A constant?

 

[methods]

some jackass must ask for that alot or something... ?? :wink:

Yea.... There is this nOoB who jocks me constantly... Wish he would go find someone else to nag
I heard is bike is slow and busted - it is only 24S lipo on a 5305. He is always complaining about how it cant pop a wheelie


Speaking of constant nagging - I have bad news: I have sold the very last 18 fet kit. There will be no more kits.

The good news is that I have something brewing...
This will be a turn-key solution for nOObs -> but it will be costly

I still have a few boards that I will sell as parts boards - slow start and fast start
I have a few 1/2 built slow start kits I will sell
I also have 6 fully built 18 fet controllers... but I am going to use those to trade with my favorite members

-methods

 

[Arlo1]

Speaking of constant nagging - I have bad news: I have sold the very last 18 fet kit. There will be no more kits.

The good news is that I have something brewing...
This will be a turn-key solution for nOObs -> but it will be costly

I still have a few boards that I will sell as parts boards - slow start and fast start
I have a few 1/2 built slow start kits I will sell
I also have 6 fully built 18 fet controllers... but I am going to use those to trade with my favorite members

-methods

Hope this include the one I am about to send money for!

 

[methods]

I have one for you and one for another member who will be sending funds in a couple of days.
Dont worry

-methods

 

[Arlo1]

Sweeeeeet I'm as giddy as the chick I big bored a scooter for a few weeks ago! Can't wait to kick her ass with clean electricty :wink:

 

[methods]

I raced a clown in a souped up SUV last week.
We both made a left hand turn, me on his ass.
He stomped the poop-stick and tried to smoke me out

I was riding the double-booster so hit both throttles and got double-stupid.
Rode his ass all the way to 50mph - not fast enough to make a pass - but not falling far back - then ran out of KV

Oh well..... Probably better that I didn't pass him since he was an a security officer at my lab
Who soups up an SUV anyway ?

-methods

 

[CNCAddict]

Who soups up an SUV anyway ?

Who soups up a bicycle?? We are by far in the minority

 

[methods]

100% Geeksters!

-methods

 

[methods]

How to wire in the CA speed control:

The lazy way to do it is to just tap the ebrake.
This will allow you to use the LVC feature in the CA

To use the speed control and current limiter you need to tap the throttle line.
As we all know, a diode goes inline between the CA and the controller input
We also put a 2K - 5K inline between the controller and the throttle

If you do this with an 18 fet you will be disappointed
Your throttle signal will be limited to around 2.8V

This is because the 18 fet runs a 10K to ground and a 1.8K inline with the throttle signal.
This means that you dont need the external 2K - 5K resistor
Solder the throttle line in as normal.
Follow the trace from the SP terminal right into the 1.8K resistor.
Anywhere after that, scrape a trace and solder in a tiny tap wire. Dont just solder the leg of the diode onto a trace - this is too risky. It is better to solder in a tiny flexible wire to eliminate risk of fatigue. The traces are tiny and you dont want to be yanking on them.

There are ample points to tap...

Anyhow - thats how you do it.

-methods

 

[Arlo1]

Who soups up an SUV anyway ?

Who soups up a bicycle?? We are by far in the minority

If you start with a bicycle and "soup" it up then I garenty we can make FAR better gains! :lol:

 

[geoff57]

How to wire in the CA speed control:

The lazy way to do it is to just tap the ebrake.
This will allow you to use the LVC feature in the CA

To use the speed control and current limiter you need to tap the throttle line.
As we all know, a diode goes inline between the CA and the controller input
We also put a 2K - 5K inline between the controller and the throttle

If you do this with an 18 fet you will be disappointed
Your throttle signal will be limited to around 2.8V

This is because the 18 fet runs a 10K to ground and a 1.8K inline with the throttle signal.
This means that you dont need the external 2K - 5K resistor
Solder the throttle line in as normal.
Follow the trace from the SP terminal right into the 1.8K resistor.
Anywhere after that, scrape a trace and solder in a tiny tap wire. Dont just solder the leg of the diode onto a trace - this is too risky. It is better to solder in a tiny flexible wire to eliminate risk of fatigue. The traces are tiny and you dont want to be yanking on them.

There are ample points to tap...

Anyhow - thats how you do it.

-methods

hi
I have an alternative to that.
If you are not using a sensorless adaptor board then you should have the SLA pad free this is a spure off the track going to the chip after the resistor, the SLA track has its own resistor on it this is 3.3K ohm you must short the resistor with a bit of wire and some solder, all you have to do is place a diode in the SLA pad the right way round with the other end attached to the CA and you have done the job no scraping of tracks needed if wanted put a switch in to disable when not wanted as well that is up to you.

Geoff

 

[methods]

Hmm, yea. That is a lot cleaner.


Short R36
Solder anode of diode into SLA hole
Solder CA speed output to cathode of diode.

I like
Thanks Geoff.

-methods

 

[geoff57]

Hmm, yea. That is a lot cleaner.


Short R36
Solder anode of diode into SLA hole
Solder CA speed output to cathode of diode.

I like
Thanks Geoff.

-methods

thats alright glad to help, if someone was so inclined they could even replace R36 with a SMD diode, very hard not sure its worth the trouble.
what you said about it affecting the 18 fet controller that is true but it is also going to be true of the rest of the infineon family of controllers both original and new chip this will include the black 9 fet controllers being sold with the 9 Continentals motors from e-bikekit.com

Geoff

 

[stator]

That's the way I did it too. I found you have to tune the CA though or it would over correct and the motor would start oscillating.

 

[methods]

The CA is definitely tuned for low power systems.
It would be a huge help if you could share your method for tuning.
Not so much your final values - but your procedure - what fields you modified - how large of increments - etc.

I really should be moving some of the tidbits from this thread into the Technical section...
I always think i am going to and then I get buried in PM's, emails, boxes to pack, and trails to ride.

I have burned over 2KW hours today
Gotta love that 2C fast charge....
My car has been broken down for over a month now and I have not missed it.

-methods

 

[no mods]

My car has been broken down for over a month now and I have not missed it.

yea- cause u live in a fantasy climate. Try living where is goes from 89 to 65 in a day' and the weather dudes prolly get 40% of the rain correctly forecasted.

** if u live in cinncinati u gotta rock a JOHN DEER umbrella to ride reliably w/out getting wet.

 

[John in CR]

My car has been broken down for over a month now and I have not missed it.

yea- cause u live in a fantasy climate. Try living where is goes from 89 to 65 in a day' and the weather dudes prolly get 40% of the rain correctly forecasted.

** if u live in cinncinati u gotta rock a JOHN DEER umbrella to ride reliably w/out getting wet.

Move.

 

[Arlo1]

My car has been broken down for over a month now and I have not missed it.

yea- cause u live in a fantasy climate. Try living where is goes from 89 to 65 in a day' and the weather dudes prolly get 40% of the rain correctly forecasted.

** if u live in cinncinati u gotta rock a JOHN DEER umbrella to ride reliably w/out getting wet.

Yeh but cooler weather will keep that motor/controler running cooler!
My car broke now to methods but I have a human powered bmx with lots of hills till I get all this built.

 

[methods]

I dont pedal

-methods