Half and full steps , current and torque

[stragenmitsuko]

Folks , I need some information about half and full steps .
Forgive me if it's been answered before , couldn't find it .

Lets say a hypothetical two phase biploair stepper .
1 Amp / phase .
100Oz torque .
Used in halfstep mode .

The 100Oz torque will most liekely be produced only during the
two phase on steps . During the one phase on , the torque will be less because the resulting magnetic field will be less .
Question one : howmuch less torque .

Then suppose I'de like to limit the current during the two phase on steps
to obtain thesame torque as the one phsae on steps .
By howmuch dow I reduce the current to obtain thesame torque as the one step on at 1Amp .


Thx
Patrick

[nophead00]

I believe the torque will be root 2 times less and you would have to increase the current by root 2 to get the same torque.