All Questions
Tagged with capacitive-power-supply power-supply
4
questions
0
votes
2
answers
184
views
What is the alternative for a capacitive power supply? [closed]
I am trying to make a UPS, which will need to pass safety regulations. I need to detect:
When the mains AC voltage is present
When the mains AC voltage is under/over voltage
I thought of using a ...
5
votes
1
answer
290
views
Any thoughts on a supercapacitor battery project?
Just some insight: I am fifteen and have been researching capacitors for a while now.
I have come up with the idea of building a supercapacitor power supply unit solely to power some small electronics ...
1
vote
1
answer
109
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Why using capacitor in transformer less ac to dc converter
I saw many transformer-less power supplies using capacitive resistance of a capacitor.
But I don't know exactly what the reasons are for using capacitors instead of normal resistors .
I guess two ...
2
votes
2
answers
772
views
Capacitor Vrms vs Vpeak Rating in Transformerless Supply
Why is it that when calculating for voltage across the capacitor in transformerless power supply we need to use peak voltage not RMS voltage value.
To be clear I am referring to the rating of C1 in ...
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