20.500.12556/DKUM-38344 VGRAJEN SISTEM ZA AVDIO PREDOJAČEVALNIK EMBEDDED SYSTEM FOR AUDIO PREAMPLIFIER Namen diplomskega dela je izdelati vgrajen sistem za upravljanje funkcij predojačevalnika, vključno z atenuatorjem za regulacijo glasnosti. Odločili smo se, da izdelamo predojačevalnik z najmanjšim možnim številom elementov na poti avdio signala in se povsem izognemo uporabi polprevodniških elementov. Želeli smo, da so vse funkcije dostopne tudi preko daljinskega upravljalnika. Zato se preklopi avdio vhodov, kot tudi regulacija glasnosti izvajajo s pomočjo relejev. Slednjo smo izvedli kot petstopenjski zaporedno vezani delilnik napetosti. Vse funkcije krmili mikrokrmilnik, ki z enotami v sistemu komunicira preko podatkovnega vodila I2C. The goal of the present diploma work is to develop an embedded system for controlling the functions of an audio preamplifier. It was decided to make use of as few elements as possible in the audio signal path. Furthermore, the use of semiconductor elements was avoided completely. All functions were also made to be accessible over an infra red remote control. Therefore, all switching functions are performed by relays. This involves switching the audio input signals as well as regulating the volume. Volume control was realized as a series five stage voltage divider. All functions are controlled by a microcontroller, communication between the units is performed with the use of the I2C protocol. vgrajen sistem predojačevalnik atenuator daljinsko upravljanje podatkovno vodilo I2C mikrokrmilnik embedded system preamplifier attenuator remote control data bus I2C microcontroller true true false [M. Kanič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2012-09-24 12:35:33 2012-11-26 11:59:54 2022-04-26 11:27:23 2021-04-17 03:43:23 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.312.46:621.375(043.2) 16517142 URN:SI:UM:DK:ZVTIL8UZ UNI_Kanic_Martin_2012.pdf UNI_Kanic_Martin_2012.pdf 1 749BEECDB63C8C51C20851A69BB17627 ec95ba9829004005ab665ad171459572734b5583827db02e3b707b34a2b41efa 7a47f2e1-7c08-11eb-bb7a-00155d0001ca 20.500.12556/dkum/c3edc4c0-aee0-4be2-ad33-1691b718377a https://dk.um.si/Dokument.php?lang=slv&id=51199 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0