All Questions
Tagged with electrolytic-capacitor ac
7
questions
4
votes
2
answers
25k
views
How can I determine the current rating of a capacitor?
I haven't seen any capacitor with the "Ampere" rating written over its body. Usually they have max. voltage and capacitance ratings, can i know "current" rating from both values?(Supposing AC voltage)
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- 103
3
votes
2
answers
542
views
Electrolytic capacitor and AC
I'm doing an experiment to investigate the relationship between frequency and capacitance. The experimental setup is to connect an aluminum electrolytic capacitor to a function generator and use an ...
- 26.7k
2
votes
1
answer
273
views
Putting AC across polarised capacitors in headphone amp?
This circuit is from Fig. 20.3 in Douglas Self, Small Signal Audio Design, Third Edition, Routlege, 2020.
This is a headphone amplifier, and as such, both input and output signals are alternating ...
- 81k
3
votes
3
answers
4k
views
Using parallel capacitor-diode pairs to limit current in an AC circuit
I want to limit current from an AC source using capacitors. As I am using dielectric (polar) capacitors, I thought I could use 2 capacitors with opposite polarity in parallel with a diode in front of ...
CommunityBot
- 1
1
vote
3
answers
771
views
How an electrolytic capacitor survives in negative half cycle?
An electrolytic capacitor doesn't like higher voltage at its opposite terminal i.e higher voltage should only be at positive terminal as per convention.If that so how the capacitor survives in this ...
- 407k
0
votes
1
answer
704
views
Reducing voltage/current of AC circuit with makeshift bi-polar capacitor
WARNING! To others reading this question: This circuit uses high voltage. DO NOT mess with 220V/110V unless you know what you're doing and know the risks (electrocution and death, mainly)
Now that ...
- 465k
2
votes
1
answer
1k
views
Powering a Digital Alarm Clock with AC
I have built a digital alarm clock using an LM8560 chip. I tried powering the circuit with DC and the 7 segment display lights up, but none of the buttons worked and the numbers on the 7 segment ...
- 56.3k