Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth
A class D amplifier would, in ideal sense, amplify signals without any noises and distortions which yield 100% efficiency and 0% Total Harmonic Distortion (THD). However, class D amplifiers have some drawbacks that lead to nonlinearity and increasing THD. Therefore, a feedback mechanism was employed...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Andalas
2016-03-01
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| Series: | Jurnal Nasional Teknik Elektro |
| Subjects: | |
| Online Access: | http://jnte.ft.unand.ac.id/index.php/jnte/article/view/178 |
| _version_ | 1819139789954220032 |
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| author | Gunawan Dewantoro Franciscus Dalu Setiaji Tio Pragustha |
| author_facet | Gunawan Dewantoro Franciscus Dalu Setiaji Tio Pragustha |
| author_sort | Gunawan Dewantoro |
| collection | DOAJ |
| description | A class D amplifier would, in ideal sense, amplify signals without any noises and distortions which yield 100% efficiency and 0% Total Harmonic Distortion (THD). However, class D amplifiers have some drawbacks that lead to nonlinearity and increasing THD. Therefore, a feedback mechanism was employed to enhance THD performance of amplifier. Some feedback techniques have been using first order filter in the feedback path to retrieve audio signals. This research proposed a second order filter with Butterworth approach. A power amplifier was realized using full-bridge amplifier with MOSFETs to provide greater power. This class D amplifier was designed to meet following specifications: maximum output power up to 32.6 W with an 8 Ω load, sensitivity of 90 mV/W, frequency response ranging from 20 Hz – 20 kHz with tolerance ± 1 dB, THD as low as 1.1 %, SNR up to 90.16 dB, and efficiency of 82.1 %. |
| first_indexed | 2024-12-22T11:28:15Z |
| format | Article |
| id | doaj.art-4c4dffeef3854db2ae62186b875c647e |
| institution | Directory Open Access Journal |
| issn | 2302-2949 2407-7267 |
| language | English |
| last_indexed | 2024-12-22T11:28:15Z |
| publishDate | 2016-03-01 |
| publisher | Universitas Andalas |
| record_format | Article |
| series | Jurnal Nasional Teknik Elektro |
| spelling | doaj.art-4c4dffeef3854db2ae62186b875c647e2022-12-21T18:27:41ZengUniversitas AndalasJurnal Nasional Teknik Elektro2302-29492407-72672016-03-0151202510.20449/jnte.v5i1.178Penguat Audio Kelas D dengan Umpan Balik Tipe ButterworthGunawan Dewantoro0Franciscus Dalu Setiaji1Tio Pragustha2Program Studi Teknik Elektro, Fakultas Teknik Elektronika dan Komputer Universitas Kristen Satya WacanaProgram Studi Teknik Elektro, Fakultas Teknik Elektronika dan Komputer Universitas Kristen Satya WacanaProgram Studi Teknik Elektro, Fakultas Teknik Elektronika dan Komputer Universitas Kristen Satya WacanaA class D amplifier would, in ideal sense, amplify signals without any noises and distortions which yield 100% efficiency and 0% Total Harmonic Distortion (THD). However, class D amplifiers have some drawbacks that lead to nonlinearity and increasing THD. Therefore, a feedback mechanism was employed to enhance THD performance of amplifier. Some feedback techniques have been using first order filter in the feedback path to retrieve audio signals. This research proposed a second order filter with Butterworth approach. A power amplifier was realized using full-bridge amplifier with MOSFETs to provide greater power. This class D amplifier was designed to meet following specifications: maximum output power up to 32.6 W with an 8 Ω load, sensitivity of 90 mV/W, frequency response ranging from 20 Hz – 20 kHz with tolerance ± 1 dB, THD as low as 1.1 %, SNR up to 90.16 dB, and efficiency of 82.1 %.http://jnte.ft.unand.ac.id/index.php/jnte/article/view/178Class D AmplifierFeedbackButterwortButterworthTotal Harmonic Distortion |
| spellingShingle | Gunawan Dewantoro Franciscus Dalu Setiaji Tio Pragustha Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth Jurnal Nasional Teknik Elektro Class D Amplifier Feedback Butterwort Butterworth Total Harmonic Distortion |
| title | Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth |
| title_full | Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth |
| title_fullStr | Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth |
| title_full_unstemmed | Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth |
| title_short | Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth |
| title_sort | penguat audio kelas d dengan umpan balik tipe butterworth |
| topic | Class D Amplifier Feedback Butterwort Butterworth Total Harmonic Distortion |
| url | http://jnte.ft.unand.ac.id/index.php/jnte/article/view/178 |
| work_keys_str_mv | AT gunawandewantoro penguataudiokelasddenganumpanbaliktipebutterworth AT franciscusdalusetiaji penguataudiokelasddenganumpanbaliktipebutterworth AT tiopragustha penguataudiokelasddenganumpanbaliktipebutterworth |