All Questions
Tagged with supercapacitor power
19
questions
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78
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Super capacitors and getting same current burst out every time using boost converter?
I need to use a supercapacitor to power a circuit for short pulses evenly. So with the same current out every pulse. To do this, I thought to use a boost converter to get a constant current out every ...
- 1
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0
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524
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Is it safe to add a big capacitor in parallel to a power supply output?
I have an application which uses a 1000W standard PC power supply, drawing continuously around 300W. However, sometimes there are short power surges of ~800W or more, which I believe triggers the ...
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35
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How to interpret the “surface power density” of a battery/capacitor
I’ve come across this research and one point of representing a power output confuses me:
This enzymatic fuel cell is based on non-immobilized enzymes that exhibit a maximum power output of 0.8 mW cm−...
- 11
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1
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58
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Voltage (or power)-current relation of a small supercapacitor
Is size a factor that limits the maximal current that a capacitor can take?
I got this question when seeing Figure 7 of this supplementary material of the research of the smallest super-capacitor now. ...
- 11
6
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3
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2k
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So why aren't supercapacitors used more often? [closed]
I've recently found out that supercapacitors (C >= 1F or so) are actually a thing.
I went searching for their advantages and disadvantages.
They don't hold as much energy as a battery, but can ...
3
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0
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2k
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Supercapacitor spot welder - which capacitors to use?
I built a spot welder using a big transformer (approximately 4kW from an old welding machine) but I now need to build a spot welder with more power (more current.)
The current spot welder works great ...
10
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5
answers
2k
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MOSFET broke after attaching capacitor bank
I have a solenoid that has a coil resistance of \$0.3\Omega\$ and accelerates a steel projectile here. I've posted the schematics below.
Normal Version that acts as a control
The GPIO8 goes to 5V to ...
user229515
2
votes
2
answers
168
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Lightest weight option to provide short bursts of power (250W x 4 seconds)
I'd like to mount mount a small pump to a surfboard to provide a small push to help catch waves. Normally to catch a wave you have to paddle furiously for about 4-5 seconds. So that's about ~ 1000 ...
- 21
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1
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65
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Only Provide Backup Power to One Device On Bus With Cap/Supercap
In a robotic system I am designing, the computer, motor controller and motor amplifier circuits all run on the same 24VDC power bus, which is provided by a switching power supply. Like below:
In the ...
- 103
3
votes
3
answers
2k
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Use of very large bulk capacitor for microcontroller power stability
I have a PIC32 microcontroller (MCU) system that experienced intermittent (though regularly) resets, most likely due to ground bounce caused by the switching of inductive loads (solenoids). All the ...
- 665
1
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2
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254
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Power requirements, and feasibility for a short high power bursts (very fast heating application)
I would like some help to evaluate the electrical feasibility of a system to heat 35 gram of thermoplastic material (for active stiffness control) in 50 ms, by about 100 degrees Celsius.
The material ...
- 111
1
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774
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Is it okay to connect Supercapacitors as input to Step-up voltage regulator?
I want to use the maximum energy of the supercapacitor for 3.3 powered circuits. Thus, I thought of using step-up voltage regulator like this
Can I do this? What are the other suggestions?
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2
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2k
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Sizing of and Type of Power-loss / Brown-Out Protection Capacitor
I found a few resources and this question here: power-loss protection
I'm using an MCP16301 step down regulator to turn 12v to 3.3v
I'm having trouble determining I in this equation:
C=I×t/ΔV
with ...
- 357
1
vote
2
answers
863
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Super capacitor vs. battery
I've made a turn signal system for my bicycle that uses power generated from the wheel. The wheel puts out 0-9v and is irregular depending on the speed. My lights take 3v, originally from two 1.5v ...
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10
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3
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9k
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Using supercapacitor as backup for MCU
I have this project that requires some kind of backup power supply. and I am planning to use a 5V 4F super cap.
there are my questions:
I am planning to charge the cap with a diode and 100 ohm ...
user83582