Electronic Basics #14: Capacitors
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Date: 2020-09-05
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Comments and reviews: 9
Ranger
Are the ratings such as voltage and microfarads on the capacitor it's max values? For example a 16volt 2200 microfarad, can it handle a maximum of 16 volts and produce 2200 microfarads? If so then shouldn't a 20 volt 4600 microfarad capacitor be better due to its higher energy store capabilities? I'm new to all this and was just wondering about this.
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Are the ratings such as voltage and microfarads on the capacitor it's max values? For example a 16volt 2200 microfarad, can it handle a maximum of 16 volts and produce 2200 microfarads? If so then shouldn't a 20 volt 4600 microfarad capacitor be better due to its higher energy store capabilities? I'm new to all this and was just wondering about this.
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Jerry
hey im new plz help
im working on a project and it needs a capacitor to dump High current high voltage into a coil I need to know how many volts and amps it dumps how do I figure this out is there a formula? all i know is that the cap charges to the max supply voltage but when the voltage is released suddenly how many amps are with that voltage?
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hey im new plz help
im working on a project and it needs a capacitor to dump High current high voltage into a coil I need to know how many volts and amps it dumps how do I figure this out is there a formula? all i know is that the cap charges to the max supply voltage but when the voltage is released suddenly how many amps are with that voltage?
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Nothing\
I made my own capacitor from 2 sheets of aluminimium foil separated by cling wrap. I folded it all up into a cube and taped it. I actually got 500nf out of it. But it leaked all of its charge very quickly. Rimstar has videos on making caps, dry andelectrolytic. I should make one of those some time.
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I made my own capacitor from 2 sheets of aluminimium foil separated by cling wrap. I folded it all up into a cube and taped it. I actually got 500nf out of it. But it leaked all of its charge very quickly. Rimstar has videos on making caps, dry andelectrolytic. I should make one of those some time.
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Haru
May I ask below DIY capacitor geometry questions?
Bigger the roll (bigger diameter) make higher capacitance.
More surface contact to + and - leg make higher Amp capacitor.
Does longer the cylinder roll make higher DC voltage?
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May I ask below DIY capacitor geometry questions?
Bigger the roll (bigger diameter) make higher capacitance.
More surface contact to + and - leg make higher Amp capacitor.
Does longer the cylinder roll make higher DC voltage?
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Haru
Great explainatio n.
After I removed capacitor from circuit board. How do I know which leg is positive, which is negative?
Your video demonstrate connect legs in wrong direction will cause capacitor to explore.
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Great explainatio n.
After I removed capacitor from circuit board. How do I know which leg is positive, which is negative?
Your video demonstrate connect legs in wrong direction will cause capacitor to explore.
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Hasting
Great stuff. One small correction on 2: 09: The more capacitance and greater maximum voltage rating a capacitor gets, the more energy (not power, which is energy divided by time) it can deliver.
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Great stuff. One small correction on 2: 09: The more capacitance and greater maximum voltage rating a capacitor gets, the more energy (not power, which is energy divided by time) it can deliver.
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Rajesh
Can you make a car start only with a bunch of capacitors? if it can be done, then can you replace the battery with this capacitor setup and use regularly? pls explain.
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Can you make a car start only with a bunch of capacitors? if it can be done, then can you replace the battery with this capacitor setup and use regularly? pls explain.
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Arvindh
Can someone please explain, how to calculate required capacitance for a particular circuit or capacitance for a led/motor? how to calculate the value required?
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Can someone please explain, how to calculate required capacitance for a particular circuit or capacitance for a led/motor? how to calculate the value required?
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Touhid
I think if you went slower this video would be much much much better.
It's really hard for newbies to get things at this speed.
Please proceed slower.
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I think if you went slower this video would be much much much better.
It's really hard for newbies to get things at this speed.
Please proceed slower.
reply
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