[sdiy] Monitoring my Dotcom system's supply voltages

[Jean-Pierre Desrochers]

Good point André,

I've been browsing around lots of analog solutions
so far ending with voltage refernces + voltage comparators
+ a bunch of passive components..
I'm starting to think of a digital solution (!!)
Just a simple Microchip PIC with analog inputs
could do all the voltage checks, hysteresis and
leds driving for my 3 voltages, and that in one chip.
The -15v will even be monitorable with some tweekings..
I already have a +5v to supply it without
disturbing my +/-15v lines with digital spikes..
Hmmm, the only problem with micros is futur repairs (in the next xx years)..
Much easier to replace analog parts than programmed PIC's.
I'm still doing some searchs..
JP


 On Wed 12/09/12 11:55 , Andre Majorel aym-htnys at teaser.fr sent:
> On 2012-09-12 09:13 -0400, Jean-Pierre Desrochers wrote:
> 
> > Here what I found by chance:
> > http://www.reuk.co.uk/TL431-Battery-Voltage-Monitor.htm
> This thread on sci.electronics.components may be of interest :
> 
> http://groups.google.com/forum/?fromgroups#!topic/sci.electroni
> cs.components/uDYcuMy4RYQ
> What I got out of it is that using a TL431 with less than 3 µF
> between anode and cathode is asking for trouble.
> 
> -- 
> André Majorel http://www.teaser.fr/~amajorel/_______________________________________________
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