Paul and Sabrina's Cheap 3 Phase Inverter (AC Controller) with Field Oriented Control

[mora]

Haha! Totally awesome! Can't wait to get assembling my controller.

[CoopL]

Thanks for the great response i've been looking for crashed leaf or volt but they seem to be hard to find around here. I've been dooing some more research and found that the motor came out of a U.S. electricar back in the mid 90's.
I am looking for a dolphin controller or more documentation so I can interface it with Paul and Sabrina's controller.

[MPaulHolmes]

Here's a quick demonstration of 50 amps of battery regen current, which was enough to make it skid to a halt:

https://www.youtube.com/watch?v=eTSo0OJLIXI

[ricemodder]

Very Cool!!

Is that the new mostly SMT controller?

[MPaulHolmes]

Yes!

[thingstodo]

Originally Posted by arber333

Paul i am working on encoder mount now and will mount it the same way as resolver is mounted. Now since i have open collector A, B, Z signals i will have to pull them up to 5V with resistors. Can you suggest R value? I see you use 1K resistors to protect micro pins. Do i use 1K also, or could i use 4.7K. Or should i rather use 470R to make ports react faster? Or would you recommend changing input resistors from 1K to 470R?
RLS has 20mA draw limit for their encoder chip.

4K7 is fine, in my opinion. The encoder does not need to react fast - it needs to react consistently. If the signal rises high enough to qualify as ON and falls low enough to qualify as OFF that's all that's required. It can look like a sine wave or a triangle even. But channel A needs to rises before channel B one direction, and channel B rises before channel A the other direction. My cables were made of unshielded category 5 solid-core 22 AWG wire, they were unshielded, I used a voltage divider on the signals since it was fed with 24V and the micro wanted a 5V signal, and there were contacts held together with duct tape. It worked fine for testing ... I would do it a bit better than that for the permanent install ... The scope showed is was very noisy, but it worked.

[MPaulHolmes]

Yes I agree with thingstodo. 4.7k is a good pull up value.

[learnerguy]

Hi all,

Can you please guide me with making a 10 to 20 Kw controller for use in motorcycles.

What parts do I have to downgrade and will it be ecnomically viable ?
I am following Paul's instructions on instructables .

[MPaulHolmes]

What voltage will you be using?

[learnerguy]

72 v 40 Ah or any configuration for 3kWh battery.