Programmable Electronic Load: Dynamic Behaviour: Part 1 Overview

RE: Programmable Electronic Load: Dynamic Behaviour: Part 1 Overview

idanre1 — Wed, 23 Aug 2017 18:00:22 GMT

Hi Jon

You mention your circuit operates the same as "Peter's programmable load circuit."

I was trying to find Peter's schematic which resembles to yours but only thing I can find is:

https://www.element14.com/community/groups/test-and-measurement/blog/2015/06/09/electronic-dc-load--performance-improvements

But its not exactly the same.

Can you please tell if this is the circuit you talking about?

Regards

Idan

RE: Programmable Electronic Load: Dynamic Behaviour: Part 1 Overview

Jan Cumps — Thu, 10 Aug 2017 08:54:31 GMT

(One idea that I've had in the back of my mind is letting the microcontroller adjust the compensation. That way, the dynamic performance could be tailored, either on-the-fly or as a one-off. Whether that would actually be feasible, I don't know.)

This was so in the very early design of the fimware.

MSP432 and TI-RTOS: PID Library Part 1 - Intro

That version of the software is still available on GITHUB : https://github.com/jancumps/msp432/tree/last_version_with_pid_library

edit: discussed with Peter here. Because the firmware now supports different regulation strategies, we can always add software PID as an experimental strategy, additional to the analog regulator.

It may be necessary to add an analog switch in the power hardware then to turn off the input from the analog regulator, and route one of the free DACs directly to the power part ...

RE: Programmable Electronic Load: Dynamic Behaviour: Part 1 Overview

jw0752 — Wed, 09 Aug 2017 23:04:14 GMT

Hi Jon,

Thanks for breaking this valuable information and analysis out into a separate stream so it is more easily accessible. I will read and study each of these posts to learn as much as I can from them.

John