motor glitching stamp robot
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I know there's some proper protocol for eliminating motor noise here,
but I just don't know what it is.
I need to reduce the noise in this circuit somehow but don't know
anything about chokes or which caps to use or where to put 'em.
Some of my 6 networked stamps are glitching, I think.
Each of my motors goes through a reversing relay, and is attached
to a NICE large can transistor (like a 3055npn). I was hoping to
simplify my design.
I have the two 12vdc (robot propulsion) motors on their
own 12 v supply, yet they still seem to be causing some problems.
The resistance on them's of course near to 0 ohms, although the load
plate says 1.2a under max load. They're good dayton gear motors.
My intent was to turn them on and off in my program loop (not using
pwm) for some kind of speed control duty cycle. Seems to be a bad
idea. Nuts!
PS: I also have a VERRRY noisy robotic arm with similar problems
that I just don't dare use. For little tiny motors, they seem to
be eating up to 14w each and make THEIR ENTIRE BANK of 7805's very
HOT! They WERE originally meant to use 3v and there were only 4d
cells in the system (maybe you know the owi arm I'm refering to).
Each axis is hooked up like my drive motors, except SLIGHLTY
smaller power transistors. Suggestions welcome...
Please help. I thought I was overkill here.
I haven't dared to add the old 386 laptop to the system yet.
but I just don't know what it is.
I need to reduce the noise in this circuit somehow but don't know
anything about chokes or which caps to use or where to put 'em.
Some of my 6 networked stamps are glitching, I think.
Each of my motors goes through a reversing relay, and is attached
to a NICE large can transistor (like a 3055npn). I was hoping to
simplify my design.
I have the two 12vdc (robot propulsion) motors on their
own 12 v supply, yet they still seem to be causing some problems.
The resistance on them's of course near to 0 ohms, although the load
plate says 1.2a under max load. They're good dayton gear motors.
My intent was to turn them on and off in my program loop (not using
pwm) for some kind of speed control duty cycle. Seems to be a bad
idea. Nuts!
PS: I also have a VERRRY noisy robotic arm with similar problems
that I just don't dare use. For little tiny motors, they seem to
be eating up to 14w each and make THEIR ENTIRE BANK of 7805's very
HOT! They WERE originally meant to use 3v and there were only 4d
cells in the system (maybe you know the owi arm I'm refering to).
Each axis is hooked up like my drive motors, except SLIGHLTY
smaller power transistors. Suggestions welcome...
Please help. I thought I was overkill here.
I haven't dared to add the old 386 laptop to the system yet.