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Hi there
I want to ask about driving stepper motor.
If i consider the following scheme to drive the stepper motor :
i use just two limit resistor to limit the current at 1 A for each coil .
If i want to run the motor in FALL STEP mode, each coil can take 1A by the resistors, no problem.
But...
Re: How can i calculate Power Resistor value , Help me Pleas
Thanx a lot for all.
Dear FvM,
you say :
(- for a unipolar stepper driver, you need only two current limiting resistors, connected to the winding center taps )
below is the scheme that i use.
does that wrong if i use one...
Re: How can i calculate Power Resistor value , Help me Pleas
Thanx a lot for all.
Dear FvM,
you say :
(- for a unipolar stepper driver, you need only two current limiting resistors, connected to the winding center taps )
below is the scheme that i use.
does that wrong if i use one...
Re: How can i calculate Power Resistor value , Help me Pleas
All my fingers and my test board have been burned before i post this topic .
this is the reason of why did i asked about this subject :cry: :cry:
Re: How can i calculate Power Resistor value , Help me Pleas
Dear AdvaRes and karesz,
thanx for your helps.
Mr AdvaRes
you say : Rb=(5-0.83)/0.15=27.8
Why did you assume Ib = 0.15 A ???
Does this value for any microcontroller and LPT port in any PC ???
Does we use [ (hfe) value]...
Hi there
I have a stepper motor that appear in the picture below (it labeled with 1.8A ), and it's coil resistance is : r = 3 [ohm].
I want to use a transistors to drive this motor like the schematic in picture 2. [ the transistors are ( MJE3055T ), data sheet is appear below ] .
my...
103h7126-0344
I have this stepper motor which appear in the pictures, and i tried to find data sheet for it but i can't find it to this model 103H7126-0344
Are there any one have the data sheet for this motor [103H7126-0344]??
Or can any one help me PLZ??
Thanx FOR ALL..
Re: capacitor values problem
Thanks banjo for your help,
I bay this motor from an electronics store. i did'nt take it from any equipment.
there are front side and back side of it below:
capacitor values problem
I saw that motor which appear in following attachments,but i do'nt know the kind of the capacitor to operate this motor?
How can i know the value of the capacitor as written on the motor??
12M...How???..does M = micro ??
thanx for all.
Pipeline problem
Hi there:
In the picture attashed we see that the instuction No.4 was fetched at the 8th cycle if the brunch (IN instruction No.3) was not taken.
why the instruction No.4 did not fetshed at the 7th cycle like the case in which the brunsh is taken?
thanks for all.
pipeline problem
Hi there:
In the picture attashed we see that the instuction No.4 was fetched at the 8th cycle if the brunch (IN instruction No.3) was not taken.
why the instruction No.4 did not fetshed at the 7th cycle like the case in which the brunsh is taken?
thanks for all.
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