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Digital archive of theses discussed at the University of Pisa

 

Thesis etd-05122023-122554


Thesis type
Tesi di dottorato di ricerca
Author
MANFREDINI, GIUSEPPE
URN
etd-05122023-122554
Thesis title
Design of compact modules for battery management
Academic discipline
ING-INF/01
Course of study
INGEGNERIA DELL'INFORMAZIONE
Supervisors
tutor Prof. Bruschi, Paolo
tutor Prof. Piotto, Massimo
tutor Ing. Simmarano, Roberto
Keywords
  • battery management system
  • inverter like
  • li-ion battery
  • ultra low voltage
Graduation session start date
05/05/2023
Availability
Withheld
Release date
05/05/2093
Summary
Recently, the use of Lithium-Ion Batteries (LIBs) has been continuously increasing. Today, LIBs can be found in many applications, from low power devices, such as portable electronics, to high-energy systems such as Electric Vehicles (EVs).
Over the last decade, Sensichips S.r.l., in collaboration with the University of Pisa, has developed a programmable sensors interface called Sensiplus and I take advantage of the features of this chip to design and test a compact and versatile Cell Management Unit (CMU). This device is capable of (i) monitoring the cell voltage and the chip temperature, (ii) analysing different types of external sensors (e.g., NTC, strain gauge, humidity sensor) and (iii) performing an EIS analysis in a wide frequency range (tens mHz - tens kHz) to extrapolate the cell equivalent circuit.
Additionally, the design of a Ultra-Low Voltage 2nd order, switched capacitor, inverter-like Delta-Sigma modulator with a novel ULV fully-differential inverter-like amplifier is described in detail.
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