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Analysis of the Use of a Zener Diode as a Voltage Regulator in a Zener Follower Circuit Ali, Mukti; Khuzaimah, Andi Ulfah; Ikbal, Muh. Syihab
Al-Khazini Vol 6 No 1 (2026): APRIL
Publisher : UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-khazini.v6i1.64968

Abstract

This study aims to analyze the performance of the Zener Follower circuit as a linear voltage regulator under varying input voltage (Vin) conditions, using a configuration where the load resistor (RL) is greater than the series resistor (RS). The experiment was conducted at the Electronics Laboratory of Universitas Islam Negeri Alauddin Makassar using basic components such as a Zener diode, an NPN transistor, and two resistors. The observed variables included Vin, Zener voltage (Vz), output voltage (Vout), and source current (Is). Measurement results showed that Vout remained relatively stable, with only a slight drop due to the base-emitter voltage (VBE) of the transistor. The deviation between the actual Vout and the theoretical value (Vz – VBE) ranged from 1% to 7%, indicating that the system maintained acceptable stability within laboratory experiment tolerances. The source current increased proportionally with the Vin, confirming that the system operates according to basic electrical principles. These findings suggest that the Zener Follower configuration is effective as a simple voltage regulator in educational applications and laboratory practice. The addition of features such as output filter capacitors or a Darlington configuration is recommended for improved accuracy and system stability in future studies
Co-Authors ., Renaldi Abdul Rachman Rasyid Abdul Rahmat Abdullah Idi Abimayu, Muhammad Erikko Ade Rosad Agus Riyadi Aji Saputra, Mochammad Ronaldy Al Ghozali, Muhammad Iqbal Anugrah, Makhdad Aprilliantoni, Aprilliantoni Arifin, Mimi Arifuddin Akil Aryana, Dalika Avin Wimar Budyastomo Budi Hartanto, Nur Rahmat Dewi, Yashinta Kumala Ekawati, Sri Aliah Fadil, Achmad Fauziyah, Zumrotul Firmansyah Firmansyah Firmansyah Firmansyah Harun, Makmur Haji Hidayanti, Ulfah Himayaturohmah, Emma Ihsan - Ihsan . Irawan, Imam Irsyad, Kamaludin Irwan - Isfa Sastrawati Keumalawati, Cut Khaeruddin Khaeruddin Khuzaimah, Andi Ulfah Kurniawan . Kurniawan Kurniawan Kurniawan, Rendi Lakatupa, Gafar Lubid, Adlan Fauzi Lusiana, Silvy Mandasari Andi Munawarah Abduh, Jayanti Mandasari Andi Munawarah Abduh Marliansyah, Anan Marly Valenti Patandianan Ma’mun, Sukron Miftahul Husni Mirza, Muhammad Rio Muh Asfan Mujahid, Laode Muh. Syihab Ikbal Muhamad Fauzi Muhammad Afdal Muhammad Irfan Muhammad Isnaini Muhammad Syarifuddin Mujahid, Laode Muh Asfan Munir Munir, Munir Ningrum, Anggung Prasetya NUR HAMID Nurul Aziza, Nurul Pardiyawan, Pardiyawan Permatasari, Ligina Prasada, Erisa Ardika Pratama, Irja Putra Qoilun, Nur Rahayu, Agung Pamuji Romli Romli, Romli Rusnawati Rusnawati, Rusnawati Sa'diyah, Rika Sa'diyah, Sa'diyah Sadiyah, Sadiyah Sagita Alfadin Nur, Dewa Saleh, Irwan Setiyanti, Anis Shirly Wunas Sirozi, M Soedarto, Teguh Sri Wahyuni Sugiantoro Sugiantoro Suhardiman Sulman Syafi'i, Syafi'i Syarnubi, Syarnubi Syauqi, Wildan Tahir, Fadliana Venny Veronica Natalia Victorynie, Irnie Wahyuni, Ekowati Wiwik Wahidah Osman Wulandari, Isma Ayu Yanti, Suci Anugrah Zaenal Muttaqin Zainal Abidin