There is a very rich selection of microcontrollers (I'm tempted to say
"nearly all") that have PWM output capabilities, the PIC among them.
You can make some very nice controllers on a single chip based on these
Why a pulse generator based system? That is at best 1970s technology. There
are many motion control chips available that handle everything from
trajectory generation through the current loop, requiring only an output
bridge, motor and feedback. For systems that do not require a whole lot of
performance source code is available on the web and the whole thing can be
dumped into a PIC microprocessor.
In one of your earlier posts you mentioned RC servos. This may be the source
of my misunderstanding here. Remote Control toys make use of position
controls that they refer to as servos. The same term is applied to motion
control systems for industrial systems and have little resemblance to the
type of control done in RC cars. Perhaps you should explain your project in
Perhaps my fault-- he asked for pulse generator circuits for "servo"
control. As RC servos (which are, by the way, real position servos in
every sense of the word) are the only servos I've used that require pulse-
width inputs, and I happen to be working with them this week, I might have
assumed he was working w/ RC servos, and sent him to sites that
specifically generate PWM to control RC servos. Actually, in fact, it
makes no difference-- he asked for pulse generator circuits, I assumed he
needed PWM and sent him to pages that will generate good inputs for any pwm
I just picked up a fairly standard futaba presicion servo (I think the
S148), but your solution will depend on your size/torque/precision
requirements. I don't think you'll get much choice on range.
firstname.lastname@example.org (iceman) wrote in message
=============================================================================can anyone give me the link for the "servocore" circuit which is part
of the "Bicore Experimenter's PCB"... i cant seem to find the file
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.