Morning Damian and QuiteCove,
>>CS, you will find current regulation un-necessary. Put an ammeter
in series and you will see what I mean.
Yes, I do that from time to time to get the feel for each type of
generator that I build.
I shut my generator off at
15000 ohms. Even if you were to run it to say 5000ohms you
would only have 3.8ma @ 19 volts. Well under the 10ma maximum
recommended.
I don't think I have run any current that high. Usually I cut off at 4
to 6 ma.
If you come up with a good circuit to trip a relay
at a specific milliamp current, and shut off the circuit, that would be
most useful. I am close but haven't quite worked out the load side
yet. I'd like to use discrete components, but I may have to break down
and use a comparator...
Seems this would be easy with a computer and the proper input output
hardware and software.
At my shop and office, I run a control system that logs temperature,
sunlight, humidity, does event counting, has photobeams connected for
datalogging, ect. I control the heat in my office with this system.
I have spare analog and digital channels. I have thought of doing exactly
what you are suggesting.
My system is an RS-485 system, does communication on a single pair of
wires. I have the modules all over the place and can in fact run and
monitor the system from 3 different computers. Often I have two computers
communicating with the system at the same time. Since this is a slow data
system, ( 50 samples per second )
I seldom have a data packet collision.
It appears that one analog input and one digital output would handle this.
I also mastered parallel port control so..... this could be done with out
any fancy expensive hardware.
All my software for this is written in C. My main program is over 10,000
lines and has run for 6 years without any problems.
Wayne
