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

[thingstodo]

Originally Posted by chimchichclick

yeah. because we need signal feedback from motor. motor not runing= nothing feedback. so v/f is good to test all before connect to motor ( i think that ) !

Agreed. I use V/F (it is listed as V/Hz on our controllers) at work (industrial mill, 150+ AC Controllers and counting) to check out operation of the controllers before the motor is connected.

[wehzeh]

What IDE do you guys use for the ATTiny? Does anybody have a precompiled hex file I can just transfer with AVRDude instead?

[thingstodo]

Originally Posted by wehzeh

What IDE do you guys use for the ATTiny? Does anybody have a precompiled hex file I can just transfer with AVRDude instead?

I looked through my files - no luck with a hex file, sorry.

You'll have to get it from Paul

[wehzeh]

I got the code loaded on, what's a good way to test it Before I solder it on?

My PICKit 3 also can't find the PIC (which I already soldered on), what components are needed for me to be able to talk to it?

[thingstodo]

My Attiny came from Paul pre-programmed ... sorry but I'm not much help for the technical how-to (: I have talked to Paul about his favorite regulator and I remember the general story ..

I would guess MPLab 8, since that was what Paul was using .. and there may be a couple of include files - types.h for example, that you need in addition to the source.

Testing out the attiny should be pretty easy. I think the regulator takes 24V from the DC/DC converter and bucks it down to 5V. Paul has told me several times that the output can be short-circuited and the PWM just backs off until it is only supplying ... 1A? .. 2A? I don't remember what it's rated for.

Anything above 7V should be OK to test it. I think it can take up to 30V before some component has an issue .. if memory serves

[wehzeh]

I think i'll just probe the outputs and see if they're live when I apply 5V from the programmer to the ATTiny. I got the code on there but I can't tell if it did it right. I don't have my O-scope, so this is bound to be fun.

EDIT:

A-HERP-A-DERP, the PI wasn't being powered. MPLabX defaults to not powering the target from the PICkit3. good to know lol.

EDIT2:
The function "RunPITest2()" Is never declared or called and I'm getting compiler errors for the variables bigArray1 and bigArray2 so I just commented the whole thing out. Just pushed a commit to the update branch with some major changes, everybody have a look. Let me know if you have anything to add!

https://github.com/seedrick/Open-ReVolt-AC/tree/Updates

[chimchichclick]

all ic i think we need http://linhkienbandan.com/wp-content...-loai-2-to.jpg ( like this ) for replace and programmer outside !
i used MPlap IDE for dspic4012 ( i think 4011 also ok) and need MPlap C30 tool to compatible and pickit 3 need power external ! ( if u dont have c30 tool i will send for you ).
(sorry if my comment cant help you ! im not good with engish ( )

[wehzeh]

Good thinking. I should add sockets to the BOM.

[ale0502]

Hi everyone,

It´s placed on the circuit three comparators for compare the "under current" of the LEMs measurements.
What is the function of that?
I understand de high current, but not the under current.



thanks

[chimchichclick]

khakha its the same ! because here we have Alternating Current. So in the top we have high current and the bot we have under current. such as +300Ampe and -300 Ampe.