Design of Signal Generators Using Active Elements Developed in I3T25 CMOS Technology Single IC Package for Illuminance to Frequency Conversion

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dc.contributor.authorŠotner, Romancs
dc.contributor.authorJeřábek, Jancs
dc.contributor.authorPolák, Ladislavcs
dc.contributor.authorKledrowetz, Vilémcs
dc.contributor.authorProkop, Romancs
dc.coverage.issue4cs
dc.coverage.volume20cs
dc.date.accessioned2020-08-04T11:00:36Z
dc.date.available2020-08-04T11:00:36Z
dc.date.issued2020-02-21cs
dc.description.abstractThis paper presents a compact and simple design of adjustable triangular and square wave functional generators employing fundamental cells fabricated on a single integrated circuit (IC) package. Two solutions have electronically tunable repeating frequency. The linear adjustability of repeating frequency was verified in the range between 17 and 264 kHz. The main benefits of the proposed generator are the follows: A simple adjustment of the repeating frequency by DC bias current, Schmitt trigger (threshold voltages) setting by DC driving voltage, and output levels in hundreds of mV when the complementary metal-oxide semiconductor (CMOS) process with limited supply voltage levels is used. These generators are suitable to provide a simple conversion of illuminance to frequency of oscillation that can be employed for illuminance measurement and sensing in the agriculture applications. Experimental measurements proved that the proposed concept is usable for sensing of illuminance in the range from 1 up to 500 lx. The change of illuminance within this range causes driving of bias current between 21 and 52 mu A that adjusts repeating frequency between 70 and 154 kHz with an error up to 10% between the expected and real cases.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationSENSORS. 2020, vol. 20, issue 4, p. 1-13.en
dc.identifier.doi10.3390/s20041198cs
dc.identifier.issn1424-8220cs
dc.identifier.other163586cs
dc.identifier.urihttp://hdl.handle.net/11012/188953
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofSENSORScs
dc.relation.urihttps://www.mdpi.com/1424-8220/20/4/1198/pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1424-8220/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectCMOS active elementen
dc.subjectcomparatoren
dc.subjectelectronic adjustingen
dc.subjectfrequency tunabilityen
dc.subjectfunctional generatoren
dc.subjectilluminance sensingen
dc.subjectintegratoren
dc.subjectsquare and triangular wavesen
dc.titleDesign of Signal Generators Using Active Elements Developed in I3T25 CMOS Technology Single IC Package for Illuminance to Frequency Conversionen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-163586en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:00:36en
sync.item.modts2020.08.04 12:19:43en
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
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav mikroelektronikycs
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