Temperature-stable Heat Pulse Driver Circuit For Low-voltage Single Supply Soil Moisture Sensors Based On Junction Transistors

dc.creatorDias
dc.creatorPC; Morais
dc.creatorFO; Franca
dc.creatorMB
dc.date2016
dc.date2016-12-06T18:30:36Z
dc.date2016-12-06T18:30:36Z
dc.date.accessioned2018-03-29T02:03:10Z
dc.date.available2018-03-29T02:03:10Z
dc.identifier1350-911X
dc.identifierElectronics Letters. INST ENGINEERING TECHNOLOGY-IET, n. 52, n. 3, p. 208 - 210.
dc.identifier1350-911X
dc.identifierWOS:000369674000020
dc.identifier10.1049/el.2015.3329
dc.identifierhttp://digital-library.theiet.org/content/journals/10.1049/el.2015.3329
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/320071
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1310837
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionA temperature-stable heat pulse driver for low-voltage single supply soil moisture sensors based on junction transistors is presented. The temperature drift of the heat pulse, caused by the variations dVBE/dT in the transistors placed in the feedback loop, is fully compensated for. A circuit measures the variations dVBE/dT of the transistors in the feedback loop and generates a current which is proportional to the -(1/R0) dV(BE)/dT that, when passed through another resistor inside the feedback loop (R-1 = R-0), provides full temperature compensation. The topology of the circuit also provides an output voltage (the voltage used to define the heat pulse) which does not need to be calibrated, since it depends only on a reference voltage external to the feedback loop.
dc.description52
dc.description
dc.description208
dc.description210
dc.descriptionFAPESP [2014/01470-3, 2012/20864-4]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description
dc.description
dc.description
dc.languageEnglish
dc.publisherINST ENGINEERING TECHNOLOGY-IET
dc.publisherHERTFORD
dc.relationElectronics Letters
dc.rightsfechado
dc.sourceWOS
dc.titleTemperature-stable Heat Pulse Driver Circuit For Low-voltage Single Supply Soil Moisture Sensors Based On Junction Transistors
dc.typeArtículos de revistas


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