On Mon, Sep 4, 2023 at 04:10 AM, Hans Summers wrote:
rather artificial scenario, a step 6V to 12V suddenly
what worries me, because of MY behaviour is following scenario:
I am on batteries. Either NiMH or LiPos. Because of me being penny wise and QRP being a state of the mind, I never manage to get new batteries or a reliable pack. I usually get what my son (RC afficionado) throws away. Take cells from here, from there, balance them poorly. Sometimes one of the cells gets exhausted before the other ones. When Rx-ing, I do not come to feel that, because of the low current consumption. But when I start TX-ing, the one sour cell gets upset and the voltage of the entire pack drops like a rock, only to resuscitate to where it was (12V) when I release the TX button.
Do not tell me this is high risk and LiPos are dangerous to play with this way. I know, but no risk, no fun. I am doing this since several decades and I am still alive, even after having seen some battery packs sky-rocketing southbound. What I am afraid now is damaging the rig. So I will go for sure and inhibit for the time being the handover from the? linear regulator to the buck converter, even if this seems to be unfair towards Hans: he has done such a beautifull and interesting development. I am with him, but too coward to risk damaging the main and only professor hanging on that frail 3.3V rail. No need for a software solution to inhibit handover, even if it would seem practical.
I am really sorry for the time being, but I am confindent that Hans and the group will find? soon a better solution: come time, come wisdom.
Yours friendly, Razvan dl2arl
DL2ARL