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Mukti Ali
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al.khazini@uin-alauddin.ac.id
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+628123601974
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mukti.ali@uin-alauddin.ac.id
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JURUSAN PENDIDIKAN FISIKA, LANTAI 2 FAKULTAS TARBIYAH DAN KEGURUAN, UIN ALAUDDIN MAKASSAR, SAMATA, KABUPATEN GOWA
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AL-KHAZINI: JURNAL PENDIDIKAN FISIKA
Published by Universitas Islam Negeri Alauddin Makassar
ISSN : 28303644     EISSN : 28296699     DOI : https://doi.org/10.24252/al-khazini.v2i2.31826
Core Subject : Science, Education, Engineering,
Education Engineering Physics
Al-Khazini: Journal of Physical Education is a peer-reviewed journal published twice a year (March and September) by the Department of Physical Education, Faculty of Tarbiyah and Teacher Training, Alauddin State Islamic University Makassar. Al-Khazini: Journal of Physics Education is an integrated forum to communicate the progress of science in the field of physics education. This journal reports significant new findings related to physics education; development of instructional media, development of learning methods, application of learning methods,and several applications of media in physics learning. Al-Khazini: Journal of Physical Education publishes comprehensive research articles and invites reviews from leading experts in their fields. Papers will be selected that have high scientific value, provide important new knowledge, and have high interest. Al-Khazini: The Indonesian Journal of Physics Education was only formed in 2021.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 81 Documents
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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

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