EveryCircuit - Quick charge Emergency Car Flashlight

9 years ago

Voltage 1V. Power 200mW. Fuck Yeah! A pretty light of nothing for emergencies

9 years ago

It makes only onesecond light. Not a few minutes. You have the wrong timescale

9 years ago

Yes, they are correct. A few moments of light. Why not buy a torch, perhaps a wind-up one :-) But, if you are new to electronics don't give up - there are many happy to offer help when they are able.

alielebi

9 years ago

acelebi975@gmail.com

alielebi

9 years ago

acelebi975@mail.com

lmccoig

9 years ago

Some survivalists are opting for 5 volt USB gear. Might consider more than 200 millivolt lamp?

wyoelk

9 years ago

If you are new to electronics or just this app a suggestion is to look at the Examples tab circuits and maybe download the app called "Lessons in Electricity" that covers a lot of basics. Enjoy we are all learning

zuck4

9 years ago

well i just try little around.. im a noob in electronics but im very interested in logic :).. so im just play little^^ i made some counters too but its the only i know yet :)

zuck4

9 years ago

thank you for comment :)

Robert_Kidd

9 years ago

Go get it zuck4. Doing is learning!

thebugger

9 years ago

Considering a 5A power supply it'll take you 2 hours to charge this capacitor. And 1kF at 10V doesn't exist.

Robert_Kidd

9 years ago

Take 2000F 5V capacitors and connect them in parallel - you have a 2000F 5V capacitor. Do the same and put the two in series. You have your 1kF 10V capacitor.

Robert_Kidd

9 years ago

Of course I'm not suggesting one would really do this lol.

Robert_Kidd

9 years ago

The switch contacts wouldn't last for long!

wyoelk

9 years ago

Post away, post away zuck4! You're doing fine

thebugger

9 years ago

Ultracapacitors work only up to 2.7V

Robert_Kidd

9 years ago

PANASONIC ELECTRONIC COMPONENTS EEC-F5R5U105 Supercapacitor, Stacked Coin Type, 1 F, +80%, -20%, 5.5 V, Radial Leaded, 5 mm

thebugger

9 years ago

Yes that's a supercapacitor. I'm talking about Ultracapacitors. The difference is that ultracapacitors have up to 1000 times greater capacitance, but work with less voltage. You can stack 4 of them in series, then parallel to get the same capacitance at twice the voltage

Robert_Kidd

9 years ago

In pointing out that Ultracapacitors only work up to 2.7V you seem to be suggesting that my 'solution' (which was only ever tongue-in-cheek) would not work.

Robert_Kidd

9 years ago

And yes, you can stack as I've suggested. It's only because you pointed out to Zuck4 that that 1kF at 10V didn't exist that I pointed out it was indeed a possibility. This was important since he is learning and what you said was incorrect - but probably well meant. Anyway, this is not about you and me so this conversation is done. Good luck zuck4 !!

thebugger

9 years ago

A single capacitor with such value doesn't exist. You'd have to stack two 1kF 2.7V in series, then stack them with the same pair in parallel, then stack the whole thing with the same thing again. Such a thing would require 8 capacitors of 1kF at 2.7V which cost around 70$ each. As much as it is possible it's practically unfeasible to do so, juwt for an emergency light. You're better off with a battery, you might even charge the battery faster than the ultracapacitor.

Robert_Kidd

9 years ago

Nuff said!