Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated

[listener192]

I apologize, you are correct!  I stand corrected.

We will have to do twice the amount of control on H-Bridges.
Each line of switching in the code is HIGH BUT, 1 pin is for three positive polarity, and another pin HIGH for three negative polarities.  Just need to make sure we can trigger three H-bridges from one high pin and use extra pins to switch polarity on the H-bridges.

Please see attached PDF to help the understanding.

All thirty H-bridges are firing for each half of the code.  Twice per code loop, each in opposite polarity.
By doing this, you have three North fields in parallel and three South's in parallel with the DC source at any one point in time.
BTW...this lines up with Ole's animation and Pierre's original code.

Hope this helps, and apologize for this confusion.  Please let me know if this looks incorrect. 

Jerdee

Hi Jerdee,

Yes I understand what you are proposing however, as we have multiple "all coils off" periods, what happen to the overlap to sustain the flux? Pierre made a point of explaining the use of the overlap.
I understand that the Bridge diodes will recover coil energy.

In Pierre's 36 slot stator, how do the positive side connected diodes shown on his drawing, recover the coil energy, if there is no negative connection during the off period?

Regards

L192

[jerdee]

Hi Jerdee,

Yes I understand what you are proposing however, as we have multiple "all coils off" periods, what happen to the overlap to sustain the flux? Pierre made a point of explaining the use of the overlap.
I understand that the Bridge diodes will recover coil energy.

In Pierre's 36 slot stator, how do the positive side connected diodes shown on his drawing, recover the coil energy, if there is no negative connection during the off period?

Regards

L192

Look at the PDF again, BOTH the H-bridge direction and HIGH are held in overlap.   


The spin codes holds the pin high until told not too, which is the "x" in the PDF line of code.  Hopefully this helps.


JerDee.

[listener192]

Look at the PDF again, BOTH the H-bridge direction and HIGH are held in overlap.   


The spin codes holds the pin high until told not too, which is the "x" in the PDF line of code.  Hopefully this helps.


JerDee.

OK, got it thanks.

L192

[jerdee]

This is what I have so far for a loop in code in a 30 pole configuration with H-Bridges at each pole.

__________________________________________

  repeat
    pin.high(Set Direction for H-Bridges 1,11,21 to be positive)
    pin.high(Set Direction for H-Bridges 6,16,26 to be negative)
    pin.high(turn H-Bridges 1,11,21,6,16,26 ON and hold)
    Delay Value   
    pin.high(Set Direction for H-Bridges 2,12,22 to be positive)
    pin.high(Set Direction for H-Bridges 7,17,27 to be negative)
    pin.high(turn H-Bridges 2,12,22,7,17,27 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 1,11,21,6,16,26 OFF)
    Delay Value
    pin.high(Set Direction for H-Bridges 3,13,23 to be positive)
    pin.high(Set Direction for H-Bridges 7,17,27 to be negative)
    pin.high(turn H-Bridges 3,13,23,7,17,27 ON and hold)
    Delay Value
    pin.low(turn  H-Bridges 2,12,22 OFF)
    Delay Value
    pin.high(Set Direction for H-Bridges 4,14,24 to be positive)
    pin.high(Set Direction for H-Bridges 8,18,28 to be negative)
    pin.high(turn H-Bridges 4,14,24,8,18,28 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 3,13,23 off)
    Delay Value
    pin.high(Set Direction for H-Bridges 5,15,25 to be positive)
    pin.high(Set Direction for H-Bridges 10,20,30 to be negative)
    pin.high(turn H-Bridges 5,15,25,10,20,30 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 4,14,24 OFF)
    Delay Value
    pin.high(Set Direction for H-Bridges 1,11,21 to be negative)
    pin.high(Set Direction for H-Bridges 6,16,26 to be positive)
    pin.high(turn H-Bridges 1,11,21,6,16,26 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 5,15,25 OFF)
    Delay Value
    pin.high(Set Direction for H-Bridges 2,12,22 to be negative)
    pin.high(Set Direction for H-Bridges 7,17,27 to be positive)
    pin.high(turn H-Bridges 2,12,22,7,17,27 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 6,16,26 OFF)
    Delay Value
    pin.high(Set Direction for H-Bridges 3,13,23 to be negative)
    pin.high(Set Direction for H-Bridges 8,18,28 to be positive)
    pin.high(turn H-Bridges 3,13,23,8,18,28 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 7,17,27 OFF)
    Delay Value
    pin.high(Set Direction for H-Bridges 4,14,24 to be negative)
    pin.high(Set Direction for H-Bridges 9,19,29 to be positive)
    pin.high(turn H-Bridges 4,14,24,9,19,29 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 8,18,28 OFF)
    Delay Value
    pin.high(Set Direction for H-Bridges 5,15,25 to be negative)
    pin.high(Set Direction for H-Bridges 10,20,30 to be positive)
    pin.high(turn H-Bridges 5,15,25,10,20,30 ON and hold)
    Delay Value
    pin.low(Turn H-Bridges 9,19,29,4,14,24 OFF)
    Delay Value
    pin.low(Turn H-Bridges 10,20,30,5,15,25 OFF)
    Delay Value

__________________________________________


Hopefully this helps,
Jerdee

[d3x0r]

Hi Jerdee,

Yes I understand what you are proposing however, as we have multiple "all coils off" periods, what happen to the overlap to sustain the flux? Pierre made a point of explaining the use of the overlap.
I understand that the Bridge diodes will recover coil energy.

In Pierre's 36 slot stator, how do the positive side connected diodes shown on his drawing, recover the coil energy, if there is no negative connection during the off period?

Regards

L192

There is never an 'all coils off' ....