I don't know what "cheapest" really means but converting between PWM and
Analog is pretty common.
But the software would need to create the PWM signal.
Check out Adafruit etc to find PWM to Analog converters. I think that
Mesa sells them as well.
Personally I think I would just save your money until you can afford a
real Mesa board. Mesa boards are cheap compared with just about
anything else machine related.
Dave
On 3/22/2017 12:38 AM, Chris Albertson wrote:
He is talking about a +/- 10 volt SIGNAL not a +/- 10 volt power
supply. His servo amp converts this analog signal to velocity.
The signal works so if it is 0V the motor stops, +5V it runs forward
at 1/2 speed and -5V is backwards at 1/2 speed and so on.
The suggested I offered was to use a bridge made with four cheap
transistor and it would need 12 volt power. So there is a use for the
ATX power supply outputs
On Mon, Mar 20, 2017 at 10:56 AM, Daren Schwenke
<darenschwe...@gmail.com <mailto:darenschwe...@gmail.com>> wrote:
You have +12v/-12v available from the ATX supply already, albeit
the -12v is limited to about 0.5 amps.
The simple, in your scrap box already solution would be wire a
couple diodes in series and add two filter caps.
0.6v-1.2v drop per diode, add them till you are at your 10v.
0On Sunday, March 19, 2017 at 12:09:42 PM UTC-4, Pruska Modr wrote:
Hi,
is there any way how to connect to computer of the x86
platform to servo amplifiers which require +/-10V for velocity
loop and to encoders working on the 5V logic and do the PID
position control loop inside Machinekit besides the MESA
FPGA+7i77 cards? It would be only temporary solution until I
figure out something better so I would like if it was cheap.
Thank you.
PM
--
website: http://www.machinekit.io blog: http://blog.machinekit.io
github: https://github.com/machinekit
---
You received this message because you are subscribed to the Google
Groups "Machinekit" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to machinekit+unsubscr...@googlegroups.com
<mailto:machinekit+unsubscr...@googlegroups.com>.
Visit this group at https://groups.google.com/group/machinekit
<https://groups.google.com/group/machinekit>.
For more options, visit https://groups.google.com/d/optout
<https://groups.google.com/d/optout>.
--
Chris Albertson
Redondo Beach, California
--
website: http://www.machinekit.io blog: http://blog.machinekit.io
github: https://github.com/machinekit
---
You received this message because you are subscribed to the Google
Groups "Machinekit" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to machinekit+unsubscr...@googlegroups.com
<mailto:machinekit+unsubscr...@googlegroups.com>.
Visit this group at https://groups.google.com/group/machinekit.
For more options, visit https://groups.google.com/d/optout.
--
website: http://www.machinekit.io blog: http://blog.machinekit.io github:
https://github.com/machinekit
---
You received this message because you are subscribed to the Google Groups "Machinekit" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to machinekit+unsubscr...@googlegroups.com.
Visit this group at https://groups.google.com/group/machinekit.
For more options, visit https://groups.google.com/d/optout.
