Lots to comment on…Alan B
I am unsure how to employ this device; certainly it appears to have a lot of value, though I don’t know where it would plug in as the examples of use are numerous. Perhaps with a bit of your help I could understand and learn? Njay
between U2-A OUT/UV and GND, I did note that as Throttle rises, Current through R12 drops about 1mA – from about 2.8mA to 1.8mA, and that UV changes range from 3.388-2.255 (w/o) to 3.338-2.256 (with); it was tiresome to reign it back in as R104 went from 2.5K to 2.31K & R107 from 2.6K to 2.89K. <phooey
>. But the real problem is that R12 is not
1.2K, not on my boards cos I’ve already modified them for high-regen-braking -> it’s something like 835 or 935 ohms depending on which of my two controllers were talking about. (It’s at this point I begin ripping my hair out like Larry-Stooge and barking around in a circle on the floor like Curly). What I’m trying to say is that R12 is all relative. Why don’t we just replace it with a nice high-turn 2K POT and have a beer? U2
: Sorry for being dense, but I need you to explain it to me in terms of U2-A
because I can’t follow it. Or write over the image with the proposed correction, or reference a previous schematic where we may have had it drawn correctly Switching devices from 5 to +12V
: R104 will have to become a 10K POT as it falls right in between stock values for R106 (which was 14K & now 62K), and R101 went from 300 ohms to 1K. All good.Vcc_L & Diode
: Ha! I can do that now right after the keyswitch. My only sad thought was that both controllers would have the same 12-volt supply, but I will try this solution and see if it solves the problem. The C2 cap on my modified controllers is 100V 100uf. There’s not much room to stuff a bigger one, however for my DC-DC converter I placed a retired 63V 470uf cap on the +12V line which is why the voltage barely dips 0.05V when the Left-Right indicators are flashing.
(It always cracked me up to watch the ampmeter on a car dashboard walk left-right when the flashers were going on/off while sitting at a stoplight, poor ol’ alternator struggling at idle to keep up with those lossy incandescent lamps… what’s with that?)
I’d show you Version 12
, but it only has the changes discussed above which ain’t much. Gimme a proper U2 layout like you spoke of and I’ll do it pronto <nods>.
Cheerios or Fruit-Loops for breakfast?
No, make it Cap'n Crunch's Crunch Berries, KF <gosh no wonder I went to the dentist so often…>