I will happily pass the C code on :)

The actual application is a remote data telemetry link which
I hope will sell :)
I think it will end up with the a simple 2 resistor style
charging circuit as it is cost effective, but during the project
have become interested in solar technology.

Cheers
Peter

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Roman Black
Sent: Tuesday, 21 January 2003 12:47 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: Solar charging of batteries


Is that micro PIC RISC compatible? Will you share
PIC source code with the list? And are you planning
to sell these? :o)
-Roman


Peter Mcalpine wrote:

> Roman, if I could trouble you to draw a simple cct of what you are
> proposing I will whip it up and throw some software at it, then
> measure what happens :)
> (although it want be a PIC micro.. Mitsubishi M16C62 micro)
>
> In the main software I actually put the complete circuit to sleep
> for 30seconds to drop to lowest power consumption modes. So not
> sure how I will cope with the PWM in the final version without
> another pwm generator of some type.
>
> Cheers!
> Peter Mcalpine
>
> -----Original Message-----

>
> Well actually I was proposing modulating the "middle"
> so that both the input and outputs see a nice smooth
> DC current.
>
> I think you have a point with the control loop issue,
> the PIC would need to do some error checking but there
> should be plenty of processing power available. A
> simple dithering up and down (say) 2% each side of max
> output current would work provided it was faster than
> the rate of change of the solar conditions.
> -Roman

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