Hi, could the J9 output in PurePI (similar to J5 in UcConditioner) be used to power a small panel led?
I had the same problem couple years ago. I wrote about this here about imbalance, and uneven charging / discharging.
unfortunately, I was unable to overcome this problem. I tried to add different resistors to speed up the discharge. but in the end, I decide not to risk, because if you don’t pay attention, the voltage on one of the supercaps easily goes beyond 3v with a maximum allowable 2.8v🙁
Dear Ian and all in the group,
when i need 15V only for 2 neutrino clocks, can i use ucpure with smaller UC's ? Fex. 6 x 500F ?
Andreas
when i need 15V only for 2 neutrino clocks, can i use ucpure with smaller UC's ? Fex. 6 x 500F ?
Andreas
I am not Ian but, you can. However, it reduces the run time between charges. I think there is a formula in the user manual if I recall correctly. The fact that the current draw is low helps.
Jrocker, Ian,
how can i calculated pure time (minutes) based of UC capacity and current draw (in my situation 40 mA) ?
Andreas
how can i calculated pure time (minutes) based of UC capacity and current draw (in my situation 40 mA) ?
Andreas
Is this formula ok? Seconds = ( C * (VCharged - VDepleted) ) / Amps= 500 * (15 - 12) / 0,04 = 37500 Seconds = about 10 hrs...
@Andy_D
Here are the UC equations:
Q=C*V＝I*T
So,
dT=dV*C/I
Try to solve the equations 🙂, For 6*500F UCs, it should be around 2 to 3 hours.
But, you will not need to worry about the pure time if you use the UcPure MKIII with FifoPiQ7
https://www.diyaudio.com/community/...fight-the-jitter.192465/page-411#post-7245843
Ian
Here are the UC equations:
Q=C*V＝I*T
So,
dT=dV*C/I
Try to solve the equations 🙂, For 6*500F UCs, it should be around 2 to 3 hours.
But, you will not need to worry about the pure time if you use the UcPure MKIII with FifoPiQ7
https://www.diyaudio.com/community/...fight-the-jitter.192465/page-411#post-7245843
Ian
Andy,
For starters, your capacitance number is WAY off. It is the reciprocal of the sum of the reciprocals…
1/(6*(1/500)) or about 83F
You might be better served by taking 1/6 (500F is 1/6 of 3000F) of the time in Ian’s manual. That’s 1/6 of 3.33 hours or about 33.3 minutes. You also buy into his assumptions, for example, the current draw…
Still you have the ESR as Ian points out.
I think what you may be trying to do is buy cheaper caps. But, they’ll sound different too.
At the end of the day, you have to use something the way someone intended, if you expect their support. Otherwise, you’re on your own and it is not of their doing.
Personally, I do this all the time; but, I accept the consequences…
Hope that helps.
For starters, your capacitance number is WAY off. It is the reciprocal of the sum of the reciprocals…
1/(6*(1/500)) or about 83F
You might be better served by taking 1/6 (500F is 1/6 of 3000F) of the time in Ian’s manual. That’s 1/6 of 3.33 hours or about 33.3 minutes. You also buy into his assumptions, for example, the current draw…
Still you have the ESR as Ian points out.
I think what you may be trying to do is buy cheaper caps. But, they’ll sound different too.
At the end of the day, you have to use something the way someone intended, if you expect their support. Otherwise, you’re on your own and it is not of their doing.
Personally, I do this all the time; but, I accept the consequences…
Hope that helps.
Jrocker, my problem is not price but space.. I have existing chassis and 6x3000F are to big..
I try with 6x500F and check the real time.
Andreas
I try with 6x500F and check the real time.
Andreas
Hi Ian and folks,
Is it ok to power LifePO4Mini3.3V with 6v AC transformer, or 5v input is the max voltage?
Thank you for your help.
Is it ok to power LifePO4Mini3.3V with 6v AC transformer, or 5v input is the max voltage?
Thank you for your help.
Has anyone tried these:
https://de.aliexpress.com/item/1005....0.0.7dd74ae4aAfIgt&mp=1&gatewayAdapt=glo2deu
33 Euro a piece ? That would make ucpure much more feasible...for 15V etc...
I still hesitate to invest big to find myself in the spot of some colleagues here which invested in eatons threetimes the costs to find a small difference in SQ in the end...
https://de.aliexpress.com/item/1005....0.0.7dd74ae4aAfIgt&mp=1&gatewayAdapt=glo2deu
33 Euro a piece ? That would make ucpure much more feasible...for 15V etc...
I still hesitate to invest big to find myself in the spot of some colleagues here which invested in eatons threetimes the costs to find a small difference in SQ in the end...
I too tried to buy that supercapacitor model but after 10 days they still hadn't shipped it... I asked for and received a paypal refund. So I bought this from Distrelec (which I haven't tested yet): https://www .distrelec.it/it/condentore-ultra-3000f-7v-spscap-cdcl3000c0-0002r7stz/p/30132154...after 5 days I received it.
Thx...so I guess this one is a fake:
https://www.amazon.de/Kondensator-U...UKMFR9&qid=1676909476&s=merchant-items&sr=1-6
?
Maxwell...3400...3.0V...18V pack for 299 ...
https://www.amazon.de/Kondensator-U...UKMFR9&qid=1676909476&s=merchant-items&sr=1-6
?
Maxwell...3400...3.0V...18V pack for 299 ...