"But to say that Ohms law does not apply or that there is a region that is "outside" of ohms law - anybody with an elementary course in electronics can not say that." Noobman said.
Yes I can say that and I will also repeat it! It's not Ohm's law that primarily limits the current in the controllers we use in printers.
It's not any of all the other "laws" used on simple DC circuits that primarily controls the current in the coils either.
Try to distinguish between what primarily controls something and all the other laws of physics that are always present on the
component but not the system level. There is no "Ohm's law" for a digital feedback system.
To take things down to your level - A stepper motor with a coil resistance of 1 Ohm driven by a 24 Volt supply has the current
controlled primarily by resistance? What resistance and where does it hide?
I wrote "Ohms law never plays a direct role in deciding the current through the motor. The chopper circuits always limits the current to the set level." The key word is direct control not peak value as you erroneously stated. In what cases does the current not reach
the peak value set by the controller?
Yes I can say that and I will also repeat it! It's not Ohm's law that primarily limits the current in the controllers we use in printers.
It's not any of all the other "laws" used on simple DC circuits that primarily controls the current in the coils either.
Try to distinguish between what primarily controls something and all the other laws of physics that are always present on the
component but not the system level. There is no "Ohm's law" for a digital feedback system.
To take things down to your level - A stepper motor with a coil resistance of 1 Ohm driven by a 24 Volt supply has the current
controlled primarily by resistance? What resistance and where does it hide?
I wrote "Ohms law never plays a direct role in deciding the current through the motor. The chopper circuits always limits the current to the set level." The key word is direct control not peak value as you erroneously stated. In what cases does the current not reach
the peak value set by the controller?
