Lebowski's motor controller IC, schematic & setup, new v2.A1

Electric Motors and Controllers
User avatar
Lebowski
1 GW
1 GW
Posts: 3200
Joined: Jun 28, 2011 1:38 am
Location: beautiful Zurich, Switzerland

Re: Lebowski's motor controller IC, schematic & setup, new v2.A1

Post by Lebowski » Apr 14, 2018 12:32 pm

Busy with some extremely interesting stuff.
DSC02111-800x800.jpg
DSC02111-800x800.jpg (108.74 KiB) Viewed 90 times
I've started programming on a different chip, one of the 33EV types. Goal is to have sensorless start with full torque at standstill. Relative (sensorless) position at standstill is quite easy, but to get absolute phase information requires a bit more doing. The picture above shows the different versions of analog signal processing that I am considering for processing the current sensor signals. The left one has 4 opamps, the right one 8 at the moment but should be 10... but have already scrapped that one in my mind and am drawing up schematic for version 3....
DSC02110-800x800.jpg
DSC02110-800x800.jpg (128.37 KiB) Viewed 90 times
The new processor plugges onto the powerPCB. The analog bits plug into the bottom right header of the experimental processor board.

Altair
100 W
100 W
Posts: 243
Joined: May 03, 2014 10:35 am
Location: Quebec, Canada

Re: Lebowski's motor controller IC, schematic & setup, new v2.A1

Post by Altair » Apr 14, 2018 3:28 pm

Mmmmmm, analog electronics. A slowly disappearing art unfortunately.

User avatar
methods
10 GW
10 GW
Posts: 4986
Joined: Aug 08, 2008 12:08 pm
Location: Santa Cruz CA
Contact:

Re: Lebowski's motor controller IC, schematic & setup, new v2.A1

Post by methods » Apr 14, 2018 5:03 pm

Go for the win
"One test is worth a thousand opinions"
(of course... that is fechter's signature... and .... too important not to repeat)

User avatar
Arlo1
100 GW
100 GW
Posts: 8575
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Lebowski's motor controller IC, schematic & setup, new v2.A1

Post by Arlo1 » Apr 14, 2018 5:06 pm

Altair wrote:
Apr 14, 2018 3:28 pm
Mmmmmm, analog electronics. A slowly disappearing art unfortunately.
Parts of the system will always have to be analog as there is no other way to determine amplitude and position of things.
My Leaf motor controller build. viewtopic.php?f=30&t=63982&p=963227#p963227
My YSR build http://www.youtube.com/watch?v=BRo8r5g4NBg
RC and most types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
HI power controller design. Game Changer
http://www.undergroundelectrics.ca/

Post Reply