Universal 3-Speed Switch (no programming,works w/any cntrlr)

[Trackman417]

Got the three speed switch today!
The pots that are potted in epoxy are much smaller than I thought they would be. I can't wait to put these things to the test tomorrow morning and tune it up.
Thanks for the great innovation Methods and Stochastic

[Stochastic]

Got the three speed switch today!
The pots that are potted in epoxy are much smaller than I thought they would be. I can't wait to put these things to the test tomorrow morning and tune it up.
Thanks for the great innovation Methods and Stochastic

Glad to hear that you like it!
Let us know how it performs on your bike .

-Matthew

[methods]

We toyed with the idea of installing larger 1-turn pots that you could adjust on the fly. In the end we figured folks would test and tune then pretty much leave it alone so Matthew went with the much smaller 10-turn pots that have more resolution and are less likely to get bumped.

We have 20pcs of 24fet kits on the way from China now. We also have 5pcs of 24fet sample about to go into production. These will have 7AWG wires, genuine IRFB4110 fets, retarded overkill on capacitors, TVS Diode protection on the fets, cleaned, conformal coated, power switches, etc. Folks are going to love these things... for guys currently pushing the limits of 18 fet controllers these will be ROCK SOLID reliable performers. After all the testing we have been doing we have a much better idea of how to protect and manage the mosfets. These controllers are going to be killer.

-methods

[gensem]

expected price on the 24fet controller methods?
variable regen (soft start regen)?

[methods]

expected price on the 24fet controller methods?
variable regen (soft start regen)?

The batch of 20 are programmable - Not familiar with soft start regen - link?
The batch of 5 will not be programmable and regen will be maxed out (perhaps unusable?).

Our final product will sell for $420 and will be rated for 420A (burst rating) and come with a programming cable. This first batch of 20 may sell for less if we start selling them before we get enough testing in to assure they will do what we want them to. Really wont know until we do some testing. The idea is to put out a controller that can either be super reliable for guys running 100V 100A or at least *capable* for guys who want to punch harder currents into CroMotors.

The other non-programmable units will be significantly less - but that price will end up being a percentage of our cost. Wont know until we test them and determine how much modding they need.

I am building prototypes today - in fact I am off to the electronics store in a few here to see what they have in the way of caps in stock. Screw Digikey - I am so sick of having to choose from 56,000 parts... I just want to pick from 3

-methods

[gensem]

The batch of 20 are programmable - Not familiar with soft start regen - link?
The batch of 5 will not be programmable and regen will be maxed out (perhaps unusable?).

-methods

I dont have a link either, its just something thats really needed when you have big power numbers, much like a progressive throttle (ie CA current throttle).
I think you ll lock the wheel quite often with max regen even without modding the shunt. Im using a bone stock 18fet 4110 controller and it does hit my moped tire very hard.

400 is a nice price... 40kw bursts looks nice also!

[methods]

A year or two back there were a bunch of Infineon type controllers that had variable regen. Ebikes.ca had a batch. Pressing the regen button would get you some small amount (like 20%) then twisting the throttle would increase the regen.

This is totally unsafe though on a powerful bike - if you keep that throttle pinned and let go of the regen button you get instant full throttle.

-methods

[Trackman417]

Jut got around to using the three speed switch today.... Well it's a two speed switch right now. It was too dark for me to adjust the tiny screws on the pots, so all I have is the medium and the high power modes to work with. But so far it is a great way to just tune down the power for other people to ride your high powered bike . Definitely takes care of that initial kick you feel when you just want to feather the throttle. Will try to work out the low positions tomorrow when I get some more sunlight.
Great job GUYS