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# Posts tagged capacitor

### Synonyms: capacitorscondensercondensers

Subtag of component · 2 child tags

Anything related to capacitors (also known in the past as condensers).

A capacitor is a 2-terminal passive electrical component that exploits the properties of electric fields created by electrical charge accumulation on conductor surfaces.

A common example of capacitor is a couple of parallel metallic sheets separated by an insulator.

The term condenser is no longer used (it was still commonly in use around the '60 of the 20th century), but it can still appear in old literature and in some peculiar applications (like condenser microphones).

TERMINOLOGY NOTE: Although the term condenser is considered obsolete in English, there are other languages where the literal translation of the English term "condenser" is the current and correct name of capacitors, e.g. Italian condensatore, German Kondensator and French condensateur. This is important to avoid wrong translations to and from technical English.

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This graph - MLCC temperature rise vs ripple current RMS & frequency If I had a 10 us current spike every 100 000 us (akin to a half-sine wave and then the rest of 9999 sine waves missing), ...

1 answer  ·  posted 8d ago by kellogs‭  ·  last activity 8d ago by Olin Lathrop‭

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I am having a difficult time picturing the flow of current and the role of the capacitor during the OFF time of a buck converter. Here is my understanding so far. During the ON time the magnetic fi...

1 answer  ·  posted 3y ago by jm567‭  ·  edited 2mo ago by Lorenzo Donati‭

Question capacitor
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I have a question about this circuit:(critically damped oscillation) For a critically damped oscillation for a series RLC circuit the equation of current has this form I(t)=D1te^(-at)+D2e^(-at) ...

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

Question capacitor
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How to find the equation of current of the RLC circuit after the switch is moved?

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

Question capacitor
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How to find the equation of voltage of the top common node of R1,L1 and C1 after the switch is moved?

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

Question capacitor
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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 2mo ago by Lorenzo Donati‭

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Inside a op-amp after the stage where the differential signal is converted to single ended , there is further amplification of the DC signal.For AC signals there is a capacitor parallel to the tran...

1 answer  ·  posted 2y ago by MissMulan‭  ·  last activity 2mo ago by Lorenzo Donati‭

Question capacitor
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If you search through the electrolytic capacitor offerings from distributors like Farnell, RS, Digikey or Mouser, you find that the maximum life-time rating is commonly quoted as 5,000 or 10,000 ho...

1 answer  ·  posted 3y ago by Andy aka‭  ·  last activity 2mo ago by Lorenzo Donati‭

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I intend to build a high-power series LC resonant circuit for the purpose of generating strong magnetic fields at a wide range of frequencies, mostly audio range (1-5000 Hz). The inductor coil is a...

1 answer  ·  posted 3mo ago by dcsuka‭  ·  edited 3mo ago by dcsuka‭

Question capacitor
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Noise can be coupled between signal lines through parasitic capacitance formed between these signal lines, as $i = C\frac{dv}{dt}$ where C is the capacitance between the signal lines. Another wa...

1 answer  ·  posted 3mo ago by Elleanor Lopez‭  ·  last activity 3mo ago by Olin Lathrop‭

Question capacitor
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I have been reading about thermal noise in resistors and I have a question: Suppose we have this circuit: Is C2 here to protect the voltage source from thermal noise?

2 answers  ·  posted 5mo ago by Volpina‭  ·  last activity 5mo ago by Andy aka‭

Question capacitor
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I was watching a video from EEVBLOG about bypass capacitors, and he presented a theory that randomly connecting different values of capacitors in parallel can create unexpected impedance spikes: ...

3 answers  ·  posted 1y ago by Elleanor Lopez‭  ·  last activity 1y ago by Andy aka‭

Question capacitor
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Assuming we have a voltage regulator : Why do we have to ground Vin and Vout using 2 capacitors just like that?Co could be to provide a low resistance path to GND at high frequencies but what is...

0 answers  ·  posted 2y ago by MissMulan‭  ·  closed 2y ago by Olin Lathrop‭

Question capacitor
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How do I find the voltage of the capacitor and the current through the capacitor after the switch is closed?

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

Question capacitor
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One of the ceramic capacitors that I've found(link to the capacitor) specifies the following characteristics at 10 kHz: The difference in value is quite significant, almost 100 fold. Which grap...

3 answers  ·  posted 2y ago by 2kind‭  ·  last activity 2y ago by TonyStewart‭

Question capacitor
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In the design of a power converter, picking the appropriate capacitors for the input and output of the converter is quite important. It is relatively easy to calculate the necessary values for a gi...

1 answer  ·  posted 2y ago by Mu3‭  ·  last activity 2y ago by Olin Lathrop‭

Question capacitor
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posted 3y ago by Circuit fantasist‭  ·  edited 3y ago by Circuit fantasist‭

Article capacitor
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I've been experimenting with LC filter circuits on the output of a SMPS I recently bought because it was too high for the circuit I'm making. After hooking up many different combinations, I found t...

0 answers  ·  posted 3y ago by jm567‭  ·  closed 3y ago by Olin Lathrop‭