Rancang Bangun dan Analisis Kinerja Amplifier Tipe OCL dan Class AB dalam Aplikasi Sound System

Iswahyudi, Teguh (2026) Rancang Bangun dan Analisis Kinerja Amplifier Tipe OCL dan Class AB dalam Aplikasi Sound System. Undergraduate thesis, Universitas Muhammadiyah Surabaya.

[thumbnail of Pendahuluan] Text (Pendahuluan)
Pendahuluan_Teguh Iswahyudi_20211330069.pdf

Download (710kB)
[thumbnail of Bab 1] Text (Bab 1)
Bab 1_Teguh Iswahyudi_20211330069.pdf

Download (146kB)
[thumbnail of Bab 2] Text (Bab 2)
Bab 2_Teguh Iswahyudi_20211330069.pdf

Download (455kB)
[thumbnail of Bab 3] Text (Bab 3)
Bab 3_Teguh Iswahyudi_20211330069.pdf

Download (374kB)
[thumbnail of Bab 4] Text (Bab 4)
Bab 4_Teguh Iswahyudi_20211330069.pdf
Restricted to Repository staff only

Download (846kB) | Request a copy
[thumbnail of Bab 5] Text (Bab 5)
Bab 5_Teguh Iswahyudi_20211330069.pdf

Download (75kB)
[thumbnail of Daftar Pustaka] Text (Daftar Pustaka)
Daftar Pustaka_Teguh Iswahyudi_20211330069.pdf

Download (126kB)
[thumbnail of Lampiran] Text (Lampiran)
Lampiran_Teguh Iswahyudi_20211330069.pdf
Restricted to Repository staff only

Download (678kB) | Request a copy

Abstract

Perkembangan teknologi audio semakin pesat, terutama dalam bidang Amplifier yang berfungsi memperkuat sinyal suara. Dua jenis Amplifier yang banyak digunakan pada sistem audio saat ini adalah Amplifier tipe OCL (Output Capacitor-Less) danAmplifier Class AB. Penelitian ini bertujuan untuk menganalisis dan membandingkan kinerja kedua jenis Amplifier tersebut dalam aplikasi sound system, dengan fokus pada efisiensi daya, daya output, gain (penguatan sinyal), respons frekuensi, serta stabilitas suhu atau termal. Metode penelitian yang digunakan adalah eksperimen langsung di laboratorium dengan tahapan perancangan, perakitan, pengujian, dan analisis data. Alat ukur yang digunakan antara lain multimeter digital, osiloskop, thermometer, dan Dummy Load. Pengujian dilakukan dengan mengukur parameter tegangan output, arus input, efisiensi daya, respons frekuensi, dan suhu transistor. Analisis data dilakukan dengan perhitungan efisiensi dan gain, serta kualitatif melalui pengamatan langsung pada hasil pengujian. Hasil penelitian menunjukkan bahwa Amplifier OCL memiliki efisiensi daya lebih tinggi, yaitu 62,5%, dengan gain sebesar ±32,78 dB dan daya output 19,0 Watt. Namun, Amplifier OCL cenderung lebih cepat panas dan membutuhkan sistem pendingin tambahan. Sementara itu, Amplifier Class AB memiliki efisiensi sebesar 52,1% dengan gain ±31,68 dB dan daya output 14,74 watt, serta suhu kerja yang lebih stabil, sehingga lebih aman untuk penggunaan jangka panjang pada audio rumahan atau indoor. Kesimpulan dari penelitian ini menunjukkan bahwa pemilihanAmplifier sebaiknya disesuaikan dengan kebutuhan aplikasi, apakah untuk daya besar atau untuk efisiensi dan kestabilan suhu.Kata kunci: Amplifier Class AB, Amplifier OCL, Efisiensi daya, Gain, Suhu termal, Sound system

=================================================================================================

Advances in audio technology are progressing rapidly, particularly in the field of amplifiers, which serve to amplify audio signals. Two types of amplifiers widely used in current audio systems are OCL (Output Capacitor-Less) amplifiers and Class AB amplifiers. This study aims to analyze and compare the performance of these two amplifier types in sound system applications, focusing on power efficiency, output power, gain (signal amplification), frequency response, and thermal stability. The research method employed was direct experimentation in the laboratory, involving the stages of design, assembly, testing, and data analysis. The measuring instruments used included a digital multimeter, an oscilloscope, a thermometer, and a dummy load. Testing was conducted by measuring the output voltage, input current, power efficiency, frequency response, and transistor temperature. Data analysis was performed through calculations of efficiency and gain, as well as qualitatively via direct observation of the test results. The research results indicate that the OCL amplifier has higher power efficiency, namely 62.5%, with a gain of ±32.78 dB and an output power of 19.0 watts. However, the OCL amplifier tends to heat up more quickly and requires an additional cooling system. Meanwhile, the Class AB amplifier has an efficiency of 52.1% with a gain of ±31.68 dB and an output power of 14.74 watts, as well as a more stable operating temperature, making it safer for long-term use in audio applications, therefore, it is safer for long-term use in home audio or indoor settings. The conclusion of this study indicates that the choice of amplifier should be tailored to the application’s needs, whether for high power output or for efficiency and thermal stability.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Amplifier Class AB, Amplifier OCL, Efisiensi daya, Gain, Suhu termal, Sound system, AB Class Amplifier, OCL Amplifier, Power Efficiency, Gain, Thermal Temperature, Sound System
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: 08. Fakultas Teknik > Teknik Elektro
Depositing User: Iswahyudi Teguh
Date Deposited: 16 Apr 2026 03:35
Last Modified: 16 Apr 2026 03:35
URI: https://repository.um-surabaya.ac.id/id/eprint/11317

Actions (login required)

View Item
View Item