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master's thesis
Optimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2024. urn:nbn:hr:168:540984
Barać, Iva
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Barać, I. (2024). Optimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:540984

Barać, Iva. "Optimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2024. https://urn.nsk.hr/urn:nbn:hr:168:540984

Barać, Iva. "Optimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2024. https://urn.nsk.hr/urn:nbn:hr:168:540984

Barać, I. (2024). 'Optimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 06 January 2025, https://urn.nsk.hr/urn:nbn:hr:168:540984

Barać I. Optimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2024 [cited 2025 January 06] Available at: https://urn.nsk.hr/urn:nbn:hr:168:540984

I. Barać, "Optimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:168:540984

Metadata
TitleOptimizacija dizajna silaznog DC-DC pretvarača i mjerenja vođenih smetnji
Title (english)Optimization of DC-DC buck converter and measurements of conducted emissions
AuthorIva Barać
MentorTomislav Marković (mentor)
Committee memberTomislav Marković (predsjednik povjerenstva)
Committee memberVladimir Čeperić (član povjerenstva)
Committee memberTvrtko Mandić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2024-07-03, Croatia
Abstract
U ovom radu opisan je postupak projektiranja i karakterizacije silaznog DC/DC pretvarača. Zadatak je bio dizajnirati pretvarač koji može raditi s ulaznim naponom od 12 V do 60 V, a na izlazu imati napon iznosa 5 V. Dodatno, trebalo je osigurati minimalnu potrošnju iznosa oko 600 µA, a maksimalna izlazna struja je 1,4 A. Središnja komponenta dizajna je regulator LM76002, proizvođača Texas Instruments. Pomoću tehničke dokumentacije odabrane su sve potrebne komponente, a topološki nacrt napravljen je u Altium Designer-u. Konačni sklop može raditi na dvije frekvencije, 500 kHz i 1 MHz, te u dva načina rada, automatskom i prisilnom PWM-u. Drugi dio rada odnosi se na mjerenja kojima je sklop karakteriziran. Mjerenja uključuju točnost i stabilnost izlaznog napona, valovitost ulaznog i izlaznog napona, potrošnju i učinkovitost za obje frekvencije i oba načina rada, prijelazne pojave pri uključivanju/isključivanju i pri promjeni opterećenja te mjerenje vođenih smetnji. Analizirane su razlike PWM i PFM načina rada, njihove prednosti i nedostatci.
Abstract (english)
This final thesis describes the design and characterization process of a buck DC/DC converter. The task is to design a switching converter capable of operating with an input voltage ranging from 12 V to 60 V and giving an output voltage of 5 V. Additionally, it is required to ensure minimal consumption of approximately 600 µA with a maximum output current of 1.4 A. The central component of the design is the LM76002 regulator from Texas Instruments. All necessary components are selected using technical documentation and the schematic is created in Altium Designer. The final circuit can operate at two frequencies, 500 kHz and 1 MHz, and in two modes, automatic and forced PWM. The second part of the paper focuses on the measurements used to characterize the circuit. Measurements include accuracy and stability of the output voltage, input and output voltage ripple, consumption and efficiency for both frequencies and modes of operation, as well as transient phenomena during startup/shutdown and load changes, and electromagnetic interference measurement. The differences between PWM and PFM modes of operation, their advantages and disadvantages are analyzed.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:540984
Study programmeTitle: 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 resourceText
File originBorn digital
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Created on2024-10-12 20:02:49