Projektiranje sklopovske podrške za mjerenje luminancije OLED rasvjetnog tijela

undergraduate thesis

• Title (english): Hardware design for the luminance measurements of an OLED luminary
• Author: Angelo Fantina
• Mentor: Adrijan Barić (mentor)
• Committee member: Adrijan Barić (predsjednik povjerenstva)
• Committee member: Niko Bako (član povjerenstva)
• Committee member: Jurica Kundrata (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2014-09-04, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Ovaj rad opisuje postupak projektiranja sklopovske podrške za mjerenje luminancije OLED (engl. Organic Light-Emitting Diode) rasvjetnog tijela, te provođenje mjerenja u statičkom režimu, odnosno u impulsnom načinu rada OLED-a. Sklopovska podrška se sastoji od dva dijela: pogonskog sklopa OLED-a, pomoću kojeg se upravlja luminancijom (osvjetljenjem), te fotodetektora čiji se strujni signal uz pomoć operacijskog pojačalo LM318N pretvara u pojačani naponski signal.
Nakon proračuna svih komponenti električnog kruga, projektirana je tiskana pločica u programskom alatu Altium Designer 2014. Identična eklektična shema implementirana je na razvojnoj pločici i testirana za strujni opseg od 0 – 3000 mA.
Zbog tehnoloških ograničenja primjene OLED-a korišten je zamjenski otpornik slične statičke karakteristike. Nakon utvrđivanja linearnosti strujne karakteristike u normalnom načinu rada, izvršena su mjerenja u impulsnom načinu rada OLED-a u kojem je isto tako utvrđena linearnost strujne karakteristike.

Abstract (english)

This paper describes a method for designing hardware support for measuring luminance of an OLED (Organic Light-Emitting Diode) light source, and conducting measurements in static mode or in pulse mode of OLED. Hardware support consists of two parts: OLED driver that provides control of luminance, and photodetector which current signal turns into amplified voltage signal, with the help of operational amplifier LM318N.
After calculation of all the elements of electrical circuit, printed circuit board in the programming package Altium Designer 2014, was projected. Identical electric scheme was implemented on the developing board and tested for the current range of 0 mA – 3000 mA.
Due to the technological limitations of OLEDs usage, alternative resistor with the similar static characteristics was used. After confirming linearity of current characteristic in normal mode of working, measurements were performed in pulsed mode of OLED which is also determined linear current characteristic.

• Keywords: luminancija; OLED; pogonski sklop; fotodetektor; LM318N; Altium Designer 2014; linearnost; Arduino
• Keywords (english): luminance; OLED; driver; photodetector; LM318N; Altium Designer 2014; linearity; Arduino
• Language: croatian
• URN:NBN: urn:nbn:hr:168:000172
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 08:42:09