DIY Electric Car Forums banner
1 - 2 of 2 Posts

·
Registered
Joined
·
8,175 Posts
I will be buying the AM Racing AMR 250-90 Single AC Motor and was looking for controller(s) that would be a good fit.
As of now I'm looking at the
Cascadia Rinehart PM150DX/DZ 150KW AC Motor Controller
or the
Evnetics Soliton 1
Now other than the huge price difference and only based off of the spec sheets I was able to find the Evnetics Soliton 1 is the better choice, price and power.
Since I'm a newbie on this subject of controller purchases, what's the better way of judging controllers?
At the most fundamental level, you at least need to buy a controller which produces the kind of power needed by the motor. You have chosen an AC motor, so you need an AC controller (also called an inverter); the Soliton is (as the listing says) a DC controller.

By the way, I believe that Evnetics shut down long ago - that Soliton listing is either obsolete, or they're still selling some old stock of controllers from a company which no longer exists to offer support.

I did try calling EVWest since they advertise all three components. I did get some info from the guy. He was very reluctant to give me any info but only offered me the answer "Go buy a Tesla."
Given recent experience of other forum members with EV West, I think they should be treated as an online source of some component specifications, but no should buy from them or expect support from them. On the other hand, if you don't understand the difference between AC and DC yet, the person you reached on the phone may have been understandably frustrated.

By the way, all of the custom colour choices in the original post make it hard to read. I use the dark-background mode for this site, so the black text is black-on-dark-grey; if you just use the default colours text shows white-on-dark-grey for me.
 

·
Registered
Joined
·
8,175 Posts
I do see now why the Soliton is so cheap compared to the Rinehart of a lesser and different power.
...
As for the Ac Dc thing, that was a stupid oversight on my part "MUH BAD". If im correct "AC" stands for "Alternating Current" and "DC" means "Direct Current" or an easier way I like to remember it, "The house needs AC" and " that Damn Car takes DC batteries"
Right... and there's even more difference than that. The power from a household outlet is single-phase AC: two wires, with the voltage between them varying up and down, from positive to negative (thus "alternating") 60 times per second (60 hertz). The power used by the AC motors used in EV (and all but the smallest industrial motors) is three-phase AC: three wires, the voltage on all three varying in turn. That means that the AC controller is basically three times as complex as a DC controller or a single-phase AC controller.
 
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top