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2019, vol. 47, br. 3, str. 624-633
Probabilistička analiza uređaja za razdvajanje odnosa naponskog razdelnika
aPublic Company Nuclear Facilities of Serbia, Belgrade
bUniverzitet u Beogradu, Mašinski fakultet

e-adresaavasic@mas.bg.ac.rs
Projekat:
Fizički i funkcionalni efekti interakcije zračenja sa elektrotehničkim i biološkim sistemima (MPNTR - 171007)

Ključne reči: voltage divider; tolerance; resistors; probability density function; Monte Carlo method
Sažetak
Tolerancija modernih otpornika obično varira od 0.1% do 1 %. Sa probabilističke tačke gledišta to znači da se odgovarajući otpor može posmatrati kao slučajna promenljiva sa odgovarajućom funkcijom gustine raspodele verovatnoće (PDF). Dobijen je izraz za PDF za odnos prenosa dvo-otporničkog razdelničkog napona, kada je otporima u razdelniku dodeljena uniformna raspodela. Grafikoni dobijeni analitičkim izrazima, za različite kombinacije nominalnih otpora i tolerancije dvaju otpornika, upoređeni su sa onima dobijenim numeričkim simulacijama. Asimetrični karakter dobijenog rezultantnog PDF-a, uzrokovan nelinearnošću funkcije razdelničkog kola, implicira da se nominalna, srednja i najverovatnija vrednost razdelničkog odnosa mogu razlikovati. Za normalnu raspodelu otpora u dvootporničkom razdelniku, analitički pristup postaje složen, dok Monte Karlo simulacije lako daju grafikone naponskih odnosa PDF-a i izračunavaju vrednosti njihovih parametara.
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O članku

jezik rada: engleski
vrsta rada: neklasifikovan
DOI: 10.5937/fmet1903624A
objavljen u SCIndeksu: 10.10.2019.
Creative Commons License 4.0

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