Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloDesign of Low-Voltage Integrated Step-up Oscillators with Microtransformers for Energy Harvesting Applications
Anno di pubblicazione2015
Formato
  • Elettronico
  • Cartaceo
Autore/iMacrelli, Enrico; Romani, Aldo; Paganelli, Rudi Paolo; Camarda, Antonio; Tartagni, Marco
Affiliazioni autoriDepartment of Electrical, Electronic, and Information Engineering, University of Bologna, Cesena I-47521, Italy Department of Electrical, Electronic, and Information Engineering, University of Bologna, Cesena I-47521, Italy National Research Council CNR-IEIIT, c/o University of Bologna, Bologna I-40136, Italy Department of Electrical, Electronic, and Information Engineering, University of Bologna, Cesena I-47521, Italy Department of Electrical, Electronic, and Information Engineering, University of Bologna, Cesena I-47521, Italy Department of Electrical, Electronic, and Information Engineering, University of Bologna, Cesena I-47521, Italy
Autori CNR e affiliazioni
  • RUDI PAOLO PAGANELLI
Lingua/e
  • inglese
AbstractThis paper describes the modeling of startup circuits in battery-less micropower energy harvesting systems and investigates the use of bond wire micromagnetics. The analysis focuses on step-up Meissner oscillators based on magnetic core transformers operating with input voltages down to approximate to 100 mV, e.g., from thermoelectric generators. As a key point, this paper examines the effect of core losses and leakage inductances on the startup requirements obtained with the classical Barkhausen criterion, and demonstrates the minimum transconductance for oscillations to occur. For validation purposes, a step-up oscillator IC is fabricated in a STMicroelectronics 0.32 mu m technology, and connected to two bond wire microtransformers, respectively, with a 1:38 MnZn ferrite core and with a 1:52 ferromagnetic low-temperature co-fired ceramic (LTCC) core. Coherently with the proposed model, experimental measurements show a minimum startup voltage of 228 mV for the MnZn ferrite core and of 104 mV for the LTCC core.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da1747
Pagine a1756
Pagine totali10
RivistaIEEE transactions on circuits and systems. I, Regular papers (Print)
Attiva dal 2004
Editore: Institute of Electrical and Electronics Engineers, - Piscataway, NJ
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 1549-8328
Titolo chiave: IEEE transactions on circuits and systems. I, Regular papers (Print)
Titolo proprio: IEEE transactions on circuits and systems. (Print)
Titolo abbreviato: IEEE trans. circuits. syst., I Regul. pap. (Print)
Titoli alternativi:
  • Institute of Electrical and Electronics Engineers transactions on circuits and systems. (Print)
  • 1, (Print)
  • Regular papers (Print)
  • Regular papers (Print)
  • Transactions on circuits and systems. (Print)
  • I, (Print)
  • Regular papers (Print)
  • Circuits and systems. (Print)
  • I, (Print)
  • Regular papers (Print)
  • Circuits and systems. (Print)
  • 1, (Print)
  • Regular papers (Print)
Numero volume della rivista62
Fascicolo della rivista7
DOI10.1109/TCSI.2015.2423796
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000356936100007)
  • INSPEC (Codice:15346072)
Parole chiaveBond wire magnetics, energy harvesting, integrated circuits, leakage inductances, magnetic losses, magnetic materials, step-up oscillators, transformers
Link (URL, URI)http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7121032
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR-
Progetti Europei-
Allegati
Low Voltage StepUp Oscillator with Microtransformer (documento privato )
Tipo documento: application/pdf