Projektiranje diskretnih istosmjernih pretvornika realiziranih s galij nitrid tranzistorima

master's thesis

• Title (english): Design of discrete DC-DC converters based on gallium nitride transistors
• Author: Anamarija Pejić
• Mentor: Adrijan Barić (mentor)
• Committee member: Adrijan Barić (predsjednik povjerenstva)
• Committee member: Igor Krois (član povjerenstva)
• Committee member: Vladimir Čeperić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2018-09-18, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Potrošnja i efikasnost elektroničkih sklopova predstavljaju neke od najvažnijih problema moderne elektronike. Proučen je rad istosmjernih prekidačkih pretvornika i njihove osnovne karakteristike. Dizajniran je istosmjerni pretvornik realiziran s galij nitrid (GaN) tranzistorima. Simulirano je ponašanje sklopa u sklopovskom simulatoru. Mjerena je efikasnost pretvorbe napona za različite vrijednosti izlaznog napona kao funkcija struje tereta od minimalne do maksimalne struje. Mjerena je ovisnost izlaznog napona o promjeni ulaznog napona pri struji tereta koja je jednaka 80% vrijednosti maksimalne dozvoljene struje. Mjerene su tranzijentne promjene koje se dešavaju pri nagloj promjeni struje tereta s 10% na 90% maksimalne struje tereta i obrnuto. Mjerene su vođene smetnje koje se generiraju na ulaznim priključcima pretvornika.

Abstract (english)

Consumption and efficiency of electronic circuits represent some of the most important problems of modern electronics. The work of switching converters and their basic characteristics was studied. A DC converter made with gallium nitride (GaN) transistors is designed. The behavior of the circuit in the circuit simulator is simulated. Voltage conversion efficiency is measured for different output current values as the load current changes from min to max current. The output voltage as a function of the input voltage at the load current equal to 80% of the maximum allowable current value is measured. Transient responses occurring at sudden change of load current from 10% to 90% of the maximum load current are measured and vice versa. Conducted emissions which are generated at converter input terminals are measured.

• Keywords: diskretni prekidački naponski regulator; naponski regulator; vođene elektromagnetske smetnje; zračene elektromagnetske smetnje
• Keywords (english): discrete switching voltage regulator; voltage regulator; conducted electromagnetic interference; radiated electromagnetic interference
• Language: english
• URN:NBN: urn:nbn:hr:168:730853
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 23:44:58