All Questions
Tagged with supercapacitor capacitance
11
questions
1
vote
1
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129
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Why conductor having charge(let say 1C) have tremendous potential but same conductor used in capacitor have low voltage?
When we talk about electrolytic capacitors or the supercapacitors (EDLC), then we know that we can store large amount of charges in it.
Since in electrolytic capacitors the aluminum plate acts as ...
- 81
0
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0
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30
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Capacitance modulation to maintain current-voltage (IV) character
The ideal capacitor DC analysis shows the time constant to be a function of the load resistance and capacitance.
Since the load resistance will be constant during discharge, is there any research on ...
- 11
0
votes
1
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69
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How do I measure material specific(volumentric) capacitance
I'd like to test electric capacitance of different powders pressed into solids.
I want to know if my procedure is correct.
First I connect a wire between the material and a ground (ex. radiator) to ...
- 151
0
votes
2
answers
123
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Ultracapacitor, capacitance higher than rated?
Broadening my knowledge and experience about ultracapacitors I've made a test bench that was described in here.
I've used an IEC methodology to calculate the capacitance:
$$
C = (I_d*t_d) / (\Delta U)
...
- 84
7
votes
2
answers
1k
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Verifying supercapacitor capacity
I have procured some supercaps.
No datasheet was provided. The only data I have is what is printed on the caps themselves: "4.0F 5.5V cda®"
Since my DMMs don't ...
- 5,182
0
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0
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403
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Is the "dc impedance" and ESR the same thing?
In a super-capacitor, what is the DC Impedance? Is it the same as ESR (Equivalent Series Resistance)?
- 834
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1
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265
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What happen if i connect the capacitors with few LED Strip in parallel?
I want to make my LED Strips which connected in parallel to dim out slowly. Therefore, i thought of using few capacitors (in parallel) to make this possible.
if i"m using 12V batery as power supply ...
2
votes
1
answer
500
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Capacitor Help -> Will stacking of dielectric and metal foil increase capacitance?
I'm new to this forum, so forgive me if I am missing something.
I am building a capacitor, and I want to know if stacking dielectric and metal foil will increase the capacitance, and if so
At what ...
- 125
5
votes
4
answers
722
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Supercapacitor with a rated voltage value greater than 2.7V feasible?
I've been researching into the development of electrical power units for Automotives (motorsports in particular, as I participate in my Uni's Formula Student team) and have started by looking into the ...
- 345
2
votes
1
answer
166
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Trouble calculating time to drain a capacitor
Introduction
I'm having trouble producing an equation that involving my MAX756 boost chip, a load and my 1.5F capacitor.
Basically I'm trying to find out how long it would take for a 1.5F capacitor ...
- 21
1
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3
answers
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Output capabilities of super capacitor
I have come across a question that is very near and dear to my heart and I am in the hopes that somebody can answer this new years eve question of mine per se.
So I am wondering, if I were to run ...
