+/-6v power from 12v and how to multiplex it.

dendad

Joined Feb 20, 2016
4,641
It should update in a second and I don't think that is slow. As per the amperage, that will be the same with AC or DC. I would think DC will actually be higher.
Just for interest, have you seen this video?
I'm looking around a bit to see if there are any practical circuits on line....
 
Last edited:

Thread Starter

stoopkid

Joined Mar 3, 2011
146
I simply don't want it to take 7 seconds to flip them all. If they can theoretically be flipped individually all in half a second then that is what I'd like to shoot for.

Going at 60Hz seems to be wasting a lot of time. And to make up for that I have to flip more at once and now contend with pulses of 30 amps. That's compared to 2 amps to do one at a time and getting basically the same result. I am also now plugging my project directly into the wall instead of getting my power from a UL listed power supply.

I appreciate the idea but I just don't see how this is easier than DC. The only more complex part about DC is the power supply which I can just buy.
 

dendad

Joined Feb 20, 2016
4,641
Running on DC is ok, but you will have a more complex driving circuit I think.
Have you got a driver circuit for all the coils worked out for DC?
And are the coils just 2 wires or 3 wires? I know your circuit shows 2 wires only, but if they were 3 wire coils it is a lot easier.
And I don't know where you get the 7 secs from.
You can switch 1 row or column each cycle and there are 50 (or 60) per second.
You do not switch 1 coil at a time, but all in that row.
so it will be 28 or 16 cycles, depending on how you drive it. That is about half a second max.
 

Thread Starter

stoopkid

Joined Mar 3, 2011
146
I'm not sure what you mean by 2 vs 3 wire coil but the pinout I have is exactly like that diagram. And I believe the circuit is identical as well.
 
Top