Ultracaps tested for excess energy

[PaulLowrance]

Yes put a resistor in series with your pot and a cap across the resistor . IST dont  care about conservation of energy which is essential in my circuit  in order for the OU controller to work . I use less than 13 ma with 5 ma out . with your AAA battery i recommend lower than 13 ma . The Goal and my purpose was to make it efficient and run the longest it can without pulling the  battery down below a certain limit . My limit is 1.255 at which point i recycle the bcap energy back into the battery to bring it back to 1.3

Q 

In those tests I had the 10Kohm pot and that was in-series with a 2.2Kohm resistor. So I already have an R. I'll try playing with the capacitor. Right now there's a 68pF capacitor in-parallel with the 2.2Kohm R, which is what you said. Also, I'll use the bigger battery.


Paul

[gadgetmall]

In those tests I had the 10Kohm pot and that was in-series with a 2.2Kohm resistor. So I already have an R. I'll try playing with the capacitor. Right now there's a 68pF capacitor in-parallel with the 2.2Kohm R, which is what you said. Also, I'll use the bigger battery.


Paul

Well being you dont have a secondary with an led to verify an increase performance with the capacitor i would try  .01  .001 .0001  and see which one drops the current intake If none do then leave it off . Its a fine tune for the goldmine toroid and i love tank circuits at the base . way better is put the cap across the pot and get a better effect on frequency's .When its right mine takes a 100 of a volt hit every 20 seconds or so .

[PaulLowrance]

I just tried no capacitor, 820pF, and 0.1uF. It made hardly no difference. No I'll replace the 10Kohm pot with a 200Kohm pot and vary the range.

[PaulLowrance]

After trying a wide range or resistance, the best is about 15.5mA in and 8mA out, which is a bit over 50% efficient since the battery & UC voltages are about the same. The highest I've seen.

I use less than 13 ma with 5 ma out .

I'm confused about what you're saying. If the bcap & battery voltage are about the same, and the input current 13mA, and output current is 5mA, then that's 38% efficiency.

Paul

[gadgetmall]

After trying a wide range or resistance, the best is about 15.5mA in and 8mA out, which is a bit over 50% efficient since the battery & UC voltages are about the same. The highest I've seen.


I'm confused about what you're saying. If the bcap & battery voltage are about the same, and the input current 13mA, and output current is 5mA, then that's 38% efficiency.

Paul

Yep. Yours is better . this is a plain Jane Jt at its worst and probably cause  i use 2 cent  china transistors .