This article is part of WikiProject Electronics, an attempt to provide a standard approach to writing articles about
electronics on Wikipedia. If you would like to participate, you can choose to edit the article attached to this page, or visit the
project page, where you can join the project and see a list of open tasks. Leave messages at the
project talk pageElectronicsWikipedia:WikiProject ElectronicsTemplate:WikiProject Electronicselectronic articles
This article is within the scope of WikiProject Electrical engineering, a collaborative effort to improve the coverage of
Electrical engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.Electrical engineeringWikipedia:WikiProject Electrical engineeringTemplate:WikiProject Electrical engineeringelectrical engineering articles
This article is within the scope of WikiProject Energy, a collaborative effort to improve the coverage of
Energy on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.EnergyWikipedia:WikiProject EnergyTemplate:WikiProject Energyenergy articles
The following discussion is closed. Please do not modify it. Subsequent comments should be made in a new section.
Reservoir capacitor has been tagged to merge with the section of this article
Rectifier#Rectifier smoothing filter. I am not the nominator, so my fan club can relax. However, there was no discussion section created for this proposed merge, so here it is. --
Wtshymanski (
talk) 20:04, 11 November 2017 (UTC)reply
Support - any unique content can be added here, no need for a separate article. --
Wtshymanski (
talk) 20:04, 11 November 2017 (UTC)reply
Support - A minor usage that certainly does not merit its own article, the minimal content could be merged to this article,
Capacitor, or
Power supply. --
ChetvornoTALK 21:35, 11 November 2017 (UTC)reply
The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
This was sloppily proposed and executed, making this merge-action time-consuming to follow:
Rectifier was not initially tagged for this.
Version at time of proposal, last updated 10:12, 9 November 2017: there is no section header Rectifier smoothing filter in that version; indeed the term "rectifier smoothing filter" doesn't even appear
The lead sentence of the former article said: A reservoir capacitor is a
capacitor that is used to smooth the pulsating DC from an AC
rectifier.
The only usage of the term in the current
Rectifier article is in the sentence "Transformer resistance modifies the reservoir capacitor waveform, changes the peak voltage, and introduces regulation issues."
So, the term reservoir capacitor is not defined now.
wbm1058 (
talk) 15:11, 21 May 2019 (UTC)reply
Oh, I see. It says "In its simplest form this can be just a capacitor (also called a filter, reservoir, or smoothing capacitor)". I missed that earlier.
wbm1058 (
talk) 23:54, 21 May 2019 (UTC)reply
This edit makes no sense to me: "The reservoir filter capacitor releases its stored energy during the part of the AC cycle when the AC source does not supply any power, that is, when the AC source changes its direction of flow of current." Common sense meanings of the words – a reservoir stores energy, not a filter. A filter separates undesired "B" from a mixture of "A" and "B" to give you the desired pure "A".
wbm1058 (
talk) 00:48, 22 May 2019 (UTC)reply
There is clear consensus among the participants to merge, and the request has been very longstanding, so it's time to action it. However, participation was very limited, so post-close comments could conceivably change consensus. (
non-admin closure) {{u|Sdkb}}talk 22:22, 23 August 2020 (UTC)reply
The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
Support - very little non-redundant content to merge here, the rest of the article is just a list of capacitor applications which should be discussed at
Capacitor. --
Wtshymanski (
talk) 20:04, 11 November 2017 (UTC)reply
Support - I agree with the above, should be merged into
Capacitor. Should also be a little more about them in this article and
Power supply. --
ChetvornoTALK 21:35, 11 November 2017 (UTC)reply
My view is that the
Capacitor article is too large (at 99.8kb), and that a better target would therefore be a more specific article:
Applications of capacitors.
Klbrain (
talk) 14:31, 4 April 2019 (UTC)reply
Agree, that would be better. --
ChetvornoTALK 21:07, 4 April 2019 (UTC)reply
Switched the templates to reflect this.
Klbrain (
talk) 08:37, 6 May 2019 (UTC)reply
Oppose This is tagged on the filter capacitor article as merge into applications of capacitors. I oppose both. We're
WP:NOTPAPER, duplication and overlap just isn't a problem for us. Keep all of them.
Andy Dingley (
talk) 15:23, 16 December 2019 (UTC)reply
The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
I replaced the merge template with a hatnote. A bit annoyed at the merge-tag-bombing here, with no followup by the proposer. More care should be taken with merging technical content.
wbm1058 (
talk) 10:42, 22 May 2019 (UTC)reply
Filter and reservoir capacitors
@
Matthiaspaul: You now have links to both
reservoir capacitor and
filter capacitor which go to different places. The article claims they are synonyms so there is no justification in having two different links (actually, we have three because there is the pre-existing
smoothing capacitor. I would also challenge the notion that the term filter capacitor is applied to this capacitor. I agree that capacitor-input filter is a term, but that doesn't mean the capacitor is called a filter capacitor. The filter follows the reservoir capacitor, it is not part of it. I read the term to mean that the filter takes its input from the reservoir capacitor which is doing a somewhat different job to a traditional frequency filter.
SpinningSpark 10:36, 19 June 2022 (UTC)reply
Yeah, I was wondering about this myself as well, but since someone added filter capacitor to the list, I didn't want to remove the term. If the term filter capacitor is (or was) actually used as a synonym to the other terms in RS we may need to disambiguate it to avoid the confusion.
The reason why I added those links was basically to "catch" their usage in the various articles and see if a common denominator can be derived to eventually change the redirects into articles properly defining them and crosslink to the other definitions to disambiguate them and let the subtle differences stand out better.
Personally, I wouldn't call it a filter capacitor (Filterkondensator) in this application either... Like you I would use the term only in conjunction with traditional frequency filters, but who knows...
In German, the output capacitor of a power supply is called a Glättungskondensator (lit.
smoothing capacitor) or Siebkondensator (lit.
sieve capacitor -> and sieving comes semantically quite close to filtering, so
filter capacitor might not be improper use as well) when the focus is on the smoothing of the rectifier output or other variable-amplitude voltage source, neclecting a possibly variable load. However, if the focus is on the capacitor's use of short-term energy storage & supply it would be called a Pufferkondensator (lit.
buffer capacitor) or, rarely and only for larger capacitors, a Reservoirkondensator (lit.
reservoir capacitor). I see that in English the terms
decoupling capacitor and
bypass capacitor are used as well - whereas I would use those only when referring to the parallel capacitors located near the load (in German they would be called Stützkondensator).