Flankensteilheit

English translation: slew rate

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:Flankensteilheit
English translation:slew rate
Entered by: Martin Crich

07:28 Sep 15, 2017
German to English translations [PRO]
Tech/Engineering - Electronics / Elect Eng / Field-effect transistors
German term or phrase: Flankensteilheit
This term refers go a field-effect transistor putting through power to various components of an electronic system at a pre-defined "Flankensteilheit".

I've seen the terms "edge steepness" and "rate of increase/change" but I'm suspicious the first term is no more than a transliteration and that the second is incomplete.

I'm aware that "Steilheit" refers to steepness and guess that it could also be translated as "rate of increase". Ths leaves me with the "Flanken-" bit of the term.

Here's the full sentence in which it appears:

"Erreicht die +15V-Spannungsversorgung einen bestimmten Wert, werden die LDO-Ausgangsspannungen über nachgeschaltete FET-Schalter mit definierter Flankensteilheit zur restlichen Elektronik (speziell FPGA) durchgeschaltet."

Can anyone help?

TIA

Jaime
Jaime Hyland
Local time: 04:51
slew rate
Explanation:
Slew rate is the time an electronic signal takes to change from one value to another. It's often used to describe the time taken for the output of an integrated circuit to change from a logical 0 to a logical 1.
Wikipedia is for once correct here.

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Note added at 9 Stunden (2017-09-15 17:15:40 GMT)
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I have 30 years of experience as an electronics engineer, during which time I never heard it called anything other than "slew rate".

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Note added at 1 Tag10 Stunden (2017-09-16 17:45:38 GMT)
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Perhaps this will help:
http://www.vishay.com/docs/73602/sip4280a.pdf
Selected response from:

Martin Crich
United Kingdom
Local time: 03:51
Grading comment
Thanks to all who participated in this question. The client has since confirmed that the term here is "slew rate", which incidentally is a term often used in German too!
4 KudoZ points were awarded for this answer



Summary of answers provided
5 +2slew rate
Martin Crich
4ramp rate
Ronald van Riet
5 -1slope rate (edge steepness)
Johannes Gleim


Discussion entries: 3





  

Answers


11 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
ramp rate


Explanation:
although this seems like a literal translation, in my electronics past this was the standard term.
also see reference below


    https://www.embeddedrelated.com/showarticle/646.php
Ronald van Riet
Local time: 04:51
Specializes in field
Native speaker of: Native in DutchDutch, Native in EnglishEnglish
PRO pts in category: 22

Peer comments on this answer (and responses from the answerer)
disagree  Martin Crich: The correct term is "slew rate". And I have 30 years of experience as an electronics engineer.
3 mins

agree  Herbmione Granger: I like your explanation and reference. http://www.ti.com/lit/an/sbva021/sbva021.pdf
9 hrs
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10 mins   confidence: Answerer confidence 5/5 peer agreement (net): +2
slew rate


Explanation:
Slew rate is the time an electronic signal takes to change from one value to another. It's often used to describe the time taken for the output of an integrated circuit to change from a logical 0 to a logical 1.
Wikipedia is for once correct here.

--------------------------------------------------
Note added at 9 Stunden (2017-09-15 17:15:40 GMT)
--------------------------------------------------

I have 30 years of experience as an electronics engineer, during which time I never heard it called anything other than "slew rate".

--------------------------------------------------
Note added at 1 Tag10 Stunden (2017-09-16 17:45:38 GMT)
--------------------------------------------------

Perhaps this will help:
http://www.vishay.com/docs/73602/sip4280a.pdf


    Reference: http://en.wikipedia.org/wiki/Slew_rate
    Reference: http://de.wikipedia.org/wiki/Slew_rate
Martin Crich
United Kingdom
Local time: 03:51
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 29
Grading comment
Thanks to all who participated in this question. The client has since confirmed that the term here is "slew rate", which incidentally is a term often used in German too!

Peer comments on this answer (and responses from the answerer)
agree  philgoddard
39 mins

agree  Kim Metzger
1 day 5 hrs

neutral  Johannes Gleim: You are translating "Anstiegsgeschwindigkeit" rather than "Flankensteilheit". No mention of "edge".
3 days 1 hr
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23 hrs   confidence: Answerer confidence 5/5 peer agreement (net): -1
slope rate (edge steepness)


Explanation:
"slew rate" is not bad, but more a description than the real term.

slew rate s. slewing rate
slewing rate [speed] 1. maximal mögliche Anstiegsgeschwindigkeit f ( z.B. der Ausgangsspannung); 2. maximal mögliche Schreibgeschwindigkeit f (XY-Schreiber)
slope rate / Flankensteilheit
Flankensteilheit f / slope [edge] steepnees, slope rate (Inpuls)
Flankensteilheit f der Ausgangsspannung/mittlere / average rate of change of output voltage
(Budig, Fachwörterbuch Elektrotechnik und Elektronik)

Fachgebiet Kommunikation
Anmerkung transmissions
de
Terminus Flankensteilheit
Zuverlässigkeit 3 (Zuverlässig)
Quelle Aérospatiale, Wb. der Luft-und-Raumfahrt, Paris, 1984

en
Terminus edge steepness
Zuverlässigkeit 3 (Zuverlässig)
Quelle Aérospatiale, Aerospace Dict., Paris, 1984
http://iate.europa.eu/SearchByQuery.do?method=searchDetail&l...

Die Flankensteilheit ist in der Elektronik und Messtechnik entweder

• die Steilheit der Bereichsenden von Filtern wie Tiefensperre (Hochpass), Höhensperre (Tiefpass), Bandsperre oder Bandpass, ausgedrückt in Dezibel pro Oktave (dB/Okt)

oder

• die Steilheit (Steigung) der Signalflanken eines Rechteck- oder Schaltsignales, angegeben beispielsweise in Volt pro Mikrosekunde (V/µs).
https://de.wikipedia.org/wiki/Flankensteilheit



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Note added at 3 days1 hr (2017-09-18 09:16:37 GMT) Post-grading
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The principal translation of "flankensteilheit" is "edge steepness", but "slope rate" is also used. Another term used in the context is "slew rate", but it refers rather to "Anstiegsgeschwindigkeit" (rate of change) than to "Steilheit". See below:

Fachwörterbuch Elektronische Medien und Dienste / Dictionary of Electronic Media & Services
:
Flankensteilheit f edge slope; Q factor (filter); slope rate, rise time (pulse), rate of change (voltage)
https://books.google.de/books?id=cDMjBgAAQBAJ&pg=PA119&lpg=P...

Flankensteilheit f (Impuls, Signal) / edge steepness | ~ (Änderungsgeschwindigkeit) / rate of change | ~ (DAU), Verstärker) / slew rate | größte ~ der Ausgangsspannung (Verstärker) / maximum rate of change of output voltage
:
edge steepness / Flankensteilheit f (Impuls, Signal)
:
slew rate / Anstiegsgeschwindigkeit f (Steilheit eines Ausgangssignals zwischen 30 8nd 70 % seines Endwerts nach sprunghafter Änderung der Eingangsgröße), Anstiegsrate f, Änderungsgeschwindigkeit, Flankensteilheit
(Siemens, Dictionary of Electrical Engineering, Power Engineering and Automation)

Lexikon der Videoüberwachungstechnik: Planung, Beratung, Installation
:
edge steepness Flankensteilheit
https://books.google.de/books?id=INwvZ-0f8_4C&pg=PA382&lpg=P...

German Technical Dictionary, Volume 1
:
Flankensteilheit f <Elektronik> edge steepness
https://books.google.de/books?id=hQRXb7kVW0YC&pg=PA264&lpg=P...

Langenscheidt Routledge German dictionary of physics, Volume 1
:
Flankensteilheit f (El) edge steepness [slope] (of a pulse)
https://books.google.de/books?id=vai7wiq5HIYC&pg=PA482&lpg=P...


Slope rate
Above its limiting frequency, a crossover restricts the signals which are allowed to pass through it. The extent of this damping depends on the design of the filter. Each high-pass and low-pass filter consists of complex electronic components (inductive resistors, capacitors) the number of which will determine the degree and type of signal damping, or slope rate. Each complex component strengthens the damping effect by 6 dB per octave. In other words, a first degree filter will have a slope rate of 6 dB per octave, a second degree filter one of 12 dB per octave etc.
http://www.visaton.de/en/lexikon/S/37.html

The slope (rate of change of output voltage with respect to input voltage) can be made 0.5 by using a voltage divider network using two resistors.
https://www.google.de/search?biw=974&bih=541&q="slope rate" ...

Multi Channel High Voltage Supply
:
linear slope rate typ. > 500 V/s typ. > 500 V/s up to 2000 V/s
1Scanmodes: In stepped scan mode, the module increases/decreases the output voltage by the user specified parameters (number of steps, holding time, voltage step). The minimum step holding time for all models is 50ms. A scan can be operated free running or synchronized to an initial TTL-Signal. Alternatively, each voltage step can be triggered by a TTL-signal. The fast linear scan of the UHPS series devices comprises a linear voltage slope by the user specified parameters (start voltage, end voltage, time duration).
http://www.surface-concept.com/products_hv.html

- LOW (min./max.) +5 V/+15 V bei 3-7 kΩ Lastwiderstand.
Flankensteilheit (max.) 30 V/µs.
:
- LOW (min./max.) +5 V/+15 V at 3-7 kΩ load resistance.
Slope rate (max.) 30 V/µs.
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd...

Module A-121 (VCF 2) is a voltage-controlled multimode filter with a cut-off slope of -12 dB / octave.
http://www.doepfer.de/a100_man/A121_man.pdf
Das Modul A-121 (VCF 2) ist ein spannungsgesteuertes Multi-Mode-Filter mit einer Flankensteilheit von -12 dB / Oktave.
http://www.doepfer.de/a100_man/a121_anl.pdf

The method involves producing a signal course characteristic of a recorded change, in which an interference signal is sampled. The interference signal has a fast rising slope rate in comparison to a movement signal.
:
As for the method, this object is achieved by the features of claim 1. In this case a generated due to a detected change waveform is analyzed in terms of its slope.
https://encrypted.google.com/patents/DE19736214A1?cl=en
Bezüglich des Verfahrens wird diese Aufgabe erfindungsgemäß gelöst durch die Merkmale des Anspruchs 1. Dabei wird ein aufgrund einer erfaßten Änderung erzeugter Signalverlauf hinsichtlich dessen Flankensteilheit analysiert.
https://encrypted.google.com/patents/DE19736214A1?cl=de
(Source: Siemens AG)

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Note added at 3 days4 hrs (2017-09-18 11:29:20 GMT) Post-grading
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Ref: LM741 as cited by Martin Crich.

The ti datasheets indicates a "slew rate" of 0.5 V/µs, but provides no translation to German. But the unit [V/μs] confirms that the slew rate is a voltage change rate in fact. This is no steepness in the proper sense.
www.ti.com/lit/ds/symlink/lm741.pdf

In German the slew rate is expressed as "Anstiegsflanke" or "Spannungsanstiegsrate".
https://books.google.de/books?id=GCsgBAAAQBAJ&pg=PA206&lpg=P...

Das Eingangssignal war ein Sinus mit einer Frequenz von 100kHz. Durch die endliche Anstiegszeit des Operationsverst¨arkers wird aus dem Sinus am Ausgang ein Dreiecksspannung (vgl. Abbildung 4).
Grafische Darstellung s. Abbildung 6. Man kann daraus eine Abschätzung der
Anstiegszeit v machen. In der Hälfte der Periodendauer steigt das Signal vom
Minimum zum Maximum. Der Operationsverstärker kann in dieser Zeit seine Ausgangsspannung um maximal 3,90V ändern.
[formula]
Im Datenblatt wird als typischer Wert von v = 0; 5V=–s angegeben.
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd...

Neben der Reduzierung der Bandbreite und der Schleifenverstärkung führt die notwendige Frequenzgangkorrektur zu einer reduzierten maximalen Anstiegsgeschwindigkeit der Ausgangsspannung, die man Slew-Rate nennt. Sie wird bei Operationsverstärkern der 741-Klasse auf einen verhältnismäßig niedrigen Wert von SR = 0,6 V/μs begrenzt.
:
1.5 Ermittlung von Kenndaten
Wichtige Kenndaten eines Operationsverstärkers sind die Differenzverstärkung AD, auch Leerlaufverstärkung VU0 genannt, die Grenzfrequenz fG, die Transitfrequenz fT – sie stellt das
Verstärkungs-Bandbreite-Produkt dar – und die Slew-Rate (Anstiegsflanke) ΔUa/Δt.
https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd...

Die Spannungsanstiegsrate (engl. slew rate) kennzeichnet die maximal mögliche zeitliche Spannungsänderung (Flankensteilheit) des Operationsverstärkerausgangs.
:
Die Spannungsanstiegsrate wird meistens in V/µs angegeben und bewegt sich bei
• Standard-Operationsverstärker (z. B. LM741) zwischen 0,1 V/µs und 10 V/µs
https://de.wikipedia.org/wiki/Operationsverstärker

Johannes Gleim
Local time: 04:51
Specializes in field
Native speaker of: German
PRO pts in category: 449

Peer comments on this answer (and responses from the answerer)
disagree  Martin Crich: It's not a description, it's the correct term
1 day 23 hrs
  -> It's not gentlemanlike to attack alternate proposals without any substantiations. // Do you disagree to "edge steepness" or "slope rate". If yes, please substantiate your disagree.
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