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Q&A

Posts tagged capacitance

Synonyms: electrical-capacitance

Anything about electrical capacitance, i.e. the electrical parameter that relates charges on conductors with the voltage between them. Capacitance is also a measure of the tendency of a conductor to oppose a change in its electrostatic potential.

Capacitance is the main parameter of a capacitor, but it's also a parameter used in other situations like the description of parasitic effects in the practical realization of circuits (e.g. the unavoidable capacitance between the windings of a transformer).
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Q&A Adding resistance to varactor circuit

If we a varactor and we want to control let's say the resonant frequency of the circuit ,in my schematic we must add R1 correct?Else we create a low resistance path for current to flow not through ...

2 answers  ·  posted 3y ago by MissMulan‭  ·  edited 10mo ago by Lorenzo Donati‭

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Q&A Estimating the input capacitance of an BLDC motor controller

Problem Description I am trying to design a BLDC inverter and I am in doubt of what would be the right approach for estimating the input capacitor size/type. Doing it empirically or throwing every...

2 answers  ·  posted 3y ago by 2kind‭  ·  edited 10mo ago by Lorenzo Donati‭

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Q&A Electrolytic vs ceramic capacitors about self-resonance frequency

Which capacitors have smaller self resonance frequency?I would bet my money on electrolytic capacitors because they are usually much bigger than the ceramic capacitors however I don't know if they...

1 answer  ·  posted 2y ago by MissMulan‭  ·  edited 10mo ago by Lorenzo Donati‭

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Q&A Capacitance of inductor

What is a typical value for capacitance of a real inductor? Does this internal capacitance exist only under AC and not DC?

1 answer  ·  posted 2y ago by MissMulan‭  ·  last activity 2y ago by Olin Lathrop‭