Differentiator circuits with scalable and electronically adjustable time constant and their application in phase shift evaluation

Simple item page
dc.contributor.authorŠotner, Romancs
dc.contributor.authorPolák, Ladislavcs
dc.contributor.authorPetržela, Jiřícs
dc.contributor.authorSemenov, Dmitriics
dc.contributor.authorLanghammer, Lukášcs
dc.contributor.authorJaikla, Winaics
dc.coverage.issue9cs
dc.coverage.volume16cs
dc.date.accessioned2025-07-18T13:56:23Z
dc.date.available2025-07-18T13:56:23Z
dc.date.issued2025-05-03cs
dc.description.abstractTwo novel scalable and electronically adjustable differentiator designs are presented in this paper. These designs are based on special variable gain amplifiers extending well-known concept of standard single operational amplifier-based differentiators. The key novelty lies in their scalability, which allows for an enhanced time constant value by adjusting the ratio of resistors. Simultaneously, the special form of gain control using a DC voltage offers wide electronic tunability. The solution performs high input and low output impedance, both independent of frequency. Experimental testing demonstrated time constant adjustments in two configurations: from 64 ns to 4.5 mu s (a ratio of maximal and minimal value 70) and from 8.7 mu s to 183 mu s (a ratio of 21). As an application example, the proposed differentiator is utilized in the design of a readout system for an absolute phase shift difference to pulse width ratio converter, suitable for monitoring a very slow phenomenon such biosignals.en
dc.formattextcs
dc.format.extent1-12cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAin Shams Engineering Journal. 2025, vol. 16, issue 9, p. 1-12.en
dc.identifier.doi10.1016/j.asej.2025.103489cs
dc.identifier.issn2090-4495cs
dc.identifier.orcid0000-0002-2430-1815cs
dc.identifier.orcid0000-0001-7084-6210cs
dc.identifier.orcid0000-0001-5286-9574cs
dc.identifier.orcid0000-0002-2136-1601cs
dc.identifier.other198146cs
dc.identifier.researcheridG-4209-2017cs
dc.identifier.researcheridDZG-2188-2022cs
dc.identifier.researcheridG-6453-2018cs
dc.identifier.scopus21834721500cs
dc.identifier.scopus36167253100cs
dc.identifier.scopus9333762000cs
dc.identifier.scopus56857453900cs
dc.identifier.urihttps://hdl.handle.net/11012/255205
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofAin Shams Engineering Journalcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2090447925002308cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2090-4495/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectDifferentiatoren
dc.subjectElectronic adjustmenten
dc.subjectOperational amplifieren
dc.subjectScalingen
dc.subjectPhase shift measurementen
dc.subjectTime constanten
dc.subjectVariable gain amplifieren
dc.titleDifferentiator circuits with scalable and electronically adjustable time constant and their application in phase shift evaluationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-198146en
sync.item.dbtypeVAVen
sync.item.insts2025.07.18 15:56:22en
sync.item.modts2025.07.18 15:33:04en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav radioelektronikycs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav telekomunikacícs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1s2.0S2090447925002308main.pdf
Size:
4.41 MB
Format:
Adobe Portable Document Format
Description:
file 1s2.0S2090447925002308main.pdf
Download
Collections
Ústav radioelektroniky
Ústav telekomunikací