please dont rip this site

Hardware Peripheral Input/Output

Stepper Motor Drivers

A "stepper motor driver" is a board with some big transistors that turns the wimpy "step" pulses from a parallel port (or a microcontroller) into the high-voltage, high-power, sequence of coil energy sources for the wires of a stepper motor.
 

Linear drivers control the amount of power getting to the motor coil by turning a drive transistor part way on. This causes the left over energy to be dropped by the transistor, which means it gets hot. Linear drives are therefor limited to medium to low power driver systems.

Chopper drivers control the coil power by rapidly turning a drive transistor on and off. This allows for higher power drives, but comes with it's own set of costs: Because the frequence is often in the audio range, the motor coil will act as a speaker and mechanically vibrate, producing a squeal, whine or hiss which is not only annoying, but can actually cause midrange resonance issues and missed steps at specific speeds. It also introduces switching losses into the motor coil which causes the motor (instead of the driver) to heat up. As heat and magnatism don't mix well, this can lead to unexpected loss of power when the system is under load or has been operating long enough for heat to build up.

See also:


file: /Techref/io/stepper/drivers.htm, 3KB, , updated: 2017/8/17 14:49, local time: 2024/3/29 07:17,
TOP NEW HELP FIND: 
3.230.147.225:LOG IN

 ©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF="http://www.massmind.org/Techref/io/stepper/drivers.htm"> Stepper Motor Drivers</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

 

Welcome to massmind.org!

 

Welcome to www.massmind.org!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .