Glossary entry (derived from question below)
English term or phrase:
bypass capacitor
German translation:
Bypass-Kondensator
English term
bypass capacitor
Digital devices are not the only chips that require bypass capacitors. Analog circuits also benefit from including bypass capacitors but in another way. Although bypass capacitors in digital systems control fast rising- and falling-time glitches from the device, bypass capacitors in analog systems help reduce power-supply noise at the analog device. (Reed Business Information)
The first line of defense against unwanted perturbations on the power supply is the bypass capacitor. A bypass capacitor eliminates voltage droops on the power supply by storing electric charge to be released when a voltage spike occurs. It also provides this service at a wide range of frequencies by creating a low-impedance path to ground for the power supply. (Intersil Americas Inc.)
So when we put several of these bypass capacitors (each with different L and C values) in parallel, the negative and positive pieces of imaginary part of the admittance will cancel at certain frequencies. (TechInsights)
| 3 +2 | Bypass-Kondensator |
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Proposed translations
Bypass-Kondensator
Ausgleichskondensator - siehe Entkopplungskondensator (balanced capacitor)
Nebenschlusskondensator, Überbrückungskondensator, Ableitkondensator, Ableitungskondensator - siehe Bypass-Kondensator (bypass capacitor)
Während die Bypass-Kondensatoren in digitalen Systemen dafür sorgen, die von den kurzen Anstiegs- und Abfallzeiten der Bauteile verursachten Glitches in den Griff zu bekommen, dienen sie in analogen Systemen zum Fernhalten von Störungen aus der Stromversorgung. (elektroniknet.de)
Discussion
Ableitkondensator mag zwar auch korrekt sein, hab ich aber so gut wie nie gehört.
A decoupling capacitor is a capacitor used to decouple one part of an electrical network (circuit) from another. Noise caused by other circuit elements is shunted through the capacitor reducing the effect they have on the rest of the circuit.
An alternative name is BYPASS capacitor as it is used to bypass the power supply or other high impedance component of a circuit
In Wikipedia (http://en.wikipedia.org/wiki/Decoupling_capacitor) it is stated that this is another word for "decoupling capacitor". Thus, "Ableitkondensator" might be correct.
At "http://www.qsl.net/dl7avf/roehren/symbole.html" you can read: "Plate Load or Filter Capacitor - Bypass Capacitor" = Anodenlade- oder Filterkondensator - Abblockkondensator"
At "http://www.patent-de.com/19980813/EP0622888.html" you can read various occurrences for "Filterkondensator" including one representing "bypass capacitor"
It might be possible that the words "bypass capacitor" do not represent a single term. The use in literature seems ambiguous.
See also
http://www.proz.com/?sp=gloss/term&id=1054730
http://www.proz.com/?sp=gloss/term&id=11726447
http://www.proz.com/?sp=gloss/term&id=5553614
http://www.proz.com/?sp=gloss/term&id=4206492 (incorrect German spelling)