EDIT: Got the answer to my confusing DC motor question from staring at this long enough:
**broken link removed**
THese are all the weird things (at least in my mind) that I concluded:
THe most important thing:
-there's a difference between linearity (y=mx+b) and proportionality (y = mx +0)! all proportional things are linear, but not all linear things are proportional!
-no-load speed is proportional to voltage, but loaded speed increases linearily with voltage
-current is only dependent on torque
-increase motor voltage by a factor X for a constant speed or constant torque load increases the output for that load by the difference between the no-load speeds of the two voltages (not proportionally or linearily). It also increase the maximum power that can be drawn from the motor (ie. for another much larger load) by a factor of X^2.
Just thought I'd post this in case some other person comes along and couldn't seem to piece together everything properly in their mind.
**broken link removed**
THese are all the weird things (at least in my mind) that I concluded:
THe most important thing:
-there's a difference between linearity (y=mx+b) and proportionality (y = mx +0)! all proportional things are linear, but not all linear things are proportional!
-no-load speed is proportional to voltage, but loaded speed increases linearily with voltage
-current is only dependent on torque
-increase motor voltage by a factor X for a constant speed or constant torque load increases the output for that load by the difference between the no-load speeds of the two voltages (not proportionally or linearily). It also increase the maximum power that can be drawn from the motor (ie. for another much larger load) by a factor of X^2.
Just thought I'd post this in case some other person comes along and couldn't seem to piece together everything properly in their mind.
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