Talk:Stepper motor
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One important and popular application of stepper motors is in electronic (quartz) watches and clocks with an analogue face. The motor is used to drive the 'second hand' in steps of 1 second.-
Paddy VS
66.156.233.41 19:26, 17 Sep 2004 (UTC)
Ill just put down some terms I would like to know more about:
max pulse rate pull-out and pull-in torque excitation methods, unipolar vs bipolar
Contents |
[edit] Removed items
I removed the following text from the main page. Please feel free to readd it in a more coherent form.
> Stepper motor movements and speed are defined by which poles are on or off.
> Stepper motors are similar to DC Brush less motors due to the fact that they use poles in conjunction with magnetism.
> Hard drive motors can be "sort of" thought of as stepper motors because the servo must use some kind of pole system to know where the spindle is to send it to the chip. But they are not STEPPER Motors; they are a type of DC Brush less.
> Stepper motors have been used in micro machines.
> Stepper motors are kool.
kmccoy (talk) 01:53, 11 Apr 2005 (UTC)
[edit] Things to add
I might get to these later...
- Better description of why the voltage doesn't matter as much. (It matters only when you're trying to drive at high speed)
- Resonance problems - from load, and also driving at some frequencies >>> This leads to more constant-motion applications than dynamic.
- Load interia vs. rotor inertia - steppers only operate in a narrow range
- 5 phase motors (I don't know much about these)
Anyone want to add schematics to show some of the things described? (the coils, the transistor drive)
Can u also add some data as to what will happen if two of the consecutive stators are simultaneously charged? 202.41.93.129 04:36, 21 March 2006 (UTC) AD
I plan to play around with Inkscape, post the SVG code so you can improve it.
- Usually I draw "comparisons". So I could compare coil arangments.
- I can also try to draw an electric schematic.
- I can draw a timing diagram, but that gets lengthy and is something the reader better clarifies on her/his own
Scheduled for this weekend, please give a note here, If you are already working on this.--Arnero 18:07, 5 May 2006 (UTC)
I added a physical description of how step motors work and some text to go with the figures; I thought it was kind of hard to get a basic idea of what step motors are from the page before. I also organized the unipolar vs. bipolar information.--Dreadengineer 09:17, 20 December 2006 (UTC)
[edit] Switch reluctance drives
hello,
Do SRD's bear any similarity to stepper motors as i tried looking for them on wikipeida and all i got was stepper motor.
Hre is a site that has a little info on SRD's
Switch reluctance drives[1]
many thanks
wouse101 (82.3.201.199)
- A "switched reluctance motor" is one type of stepper motor. A "switched reluctance drive" is the drive electronics or an adapted to that form of stepper motor or the entire drive system, electronics and motor.
- Atlant 15:55, 13 September 2006 (UTC)
[edit] Comparison recommended
I recommend that the following sections be added:
Juxtaposition with other brushless DC motors Juxtaposition with other electric motors
[edit] 1930 Step-by-step motors
I found a Naval Electrical Pocket Book from 1933 at a car-boot sale, and was surprised to learn that step-by-step motors were used as early as the 1930s for setting the firing elevation and deflection on battle ships:
The device was electro-mechanical and human operated. They even did half-stepping. Should there be a History section in here? —The preceding unsigned comment was added by 213.58.97.242 (talk) 16:41, 15 January 2007 (UTC).
