Article Per Year (5 Year)
p-Index From 2020 - 2025
4.275
P-Index
This Author published in this journals
All Journal Jurnal Teknik Elektro Universitas Tanjungpura ELKHA : Jurnal Teknik Elektro Jurnal Edukasi dan Penelitian Informatika (JEPIN) Jurnal Teknik Elektro dan Komputasi (ELKOM) Action Research Literate (ARL) JUSTIN (Jurnal Sistem dan Teknologi Informasi) Telecommunications, Computers, and Electricals Engineering Journal Journal of Electrical Engineering, Energy, and Information Technology
Elang Derdian Marindani
Unknown Affiliation
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences

Published : 33 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 33 Documents
Search

 1   2   3   4 
Design of Active Analog Subwoofer Crossover Filter Linkwitz Riley 24 in Audio System Hizkia, Dave Adonia; Suryadi, Dedy; Marindani, Elang Derdian
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 2: October 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i2.97440

Abstract

The quality of an audio system is greatly influenced by the accuracy of frequency distribution, especially in the low-frequency range managed by the subwoofer. To achieve optimal separation, this study presents the design and implementation of a fourth-order active analog Linkwitz"“Riley crossover filter (LR24) for subwoofer applications. The LR24 topology was selected for its ability to provide smooth and symmetrical frequency transitions with a 24 dB/octave slope. The research covers filter and preamplifier design, component selection, and performance evaluation using pink noise. Measurements were carried out through spectrogram analysis, frequency spectrum observation, and oscilloscope testing. The resulting filter achieved a cutoff frequency of 126.8 Hz with an attenuation slope of 24 dB/octave at 249.4 Hz, effectively reducing high-frequency signals. Comparative analysis with fourth-order digital Butterworth and Bessel filters on the DBx 260 demonstrated that the proposed analog design delivers competitive performance. This work highlights that an analog LR24 filter built from basic components and general-purpose op-amps can serve as a reliable and cost-effective alternative to digital solutions in low-frequency audio processing, although its performance is still constrained by the limitations of standard op-amps compared to audio-grade devices.
WHEELED MOBILE ROBOT WITH GPS-BASED WAYPOINT NAVIGATION SYSTEM AND IOT APPLICATION Maharani, Suci; Panjaitan, Seno Darmawan; Marindani, Elang Derdian
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 3: February 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i3.89481

Abstract

Technological advances in robotics have had a significant impact on various aspects of human life. One of them is a mobile robot that is able to move from one place to another using wheels. This study designs a mecanum wheeled robot that can move with a waypoint navigation system using a GPS coordinate system and IoT applications. Based on the test results, it is known that the Ublox Neo-6M GPS sensor can determine the location coordinates quite well in an open area without obstacles with an active time of 2-5 minutes. The HMC5883L compass sensor has an angle reading with the smallest error of 2 ° in the north direction. The results of this study, the robot can go to the targeted position without obstacles with varying angle and distance direction accuracy based on the readings of the compass sensor and infrared sensor as a distance measuring encoder at each waypoint. Testing the waypoint robot in conditions without obstacles, obtained a better level of angle and distance accuracy of the robot at waypoint 3 of 98.87% and 95.69%. When there are obstacles, the angle accuracy of waypoint 3 becomes 97.43%, and the distance accuracy is better at waypoint 1 to 94.2%. IoT application with Kodular can be used to operate robots via Bluetooth serial communication which takes an average time of about 0.507 seconds at a distance of 10 meters. At a distance of more than 11 meters, Bluetooth communication cannot connect to the HC-05 Bluetooth module.
Analysis Water Pump Control System Using PID Based on PLC and HMI Rachmawati, Angraini; Marindani, Elang Derdian; Sanjaya, Bomo Wibowo
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 2: October 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i2.97489

Abstract

The liquid"™s level is given particular notice, whereby the liquid"™s level is maintained at a certain level to meet the volume requirement. The implementation liquid level control system involves the use of water pumps in water supply management at Selat Panjang, Pontianak. The water in reservoir must be maintained in a specific level range. If the water is too high or too low, it will significantly affect the reliability and safety of the pumps. Water level control in a reservoir is carried out by adding a controller to the system. The control equipment used is a PLC (Programmable Logic Controller). Then, mathematical calculations will be carried out using MATLAB. Calculations are carried out using 3 methods, namely the manual method, the Ziegler"“Nichols method, and auto-tuning method. When applying the three methods to the system, the observed manual method demonstrated stability with a P value of 1, I value of 20, and D value of 25, approaching the setpoint at 2.21 meters with an error of ±1.1 meters. The Ziegler"“Nichols had the longest rise time but achieved the water level close to the setpoint with an error of ±0.1 meter. The auto-tuning method exhibited a relatively fast rise time of approximately 1 minute and 20 seconds. However, the water level increasingly deviated from the desired setpoint. Implementation results concluded that the Ziegler"“Nichols is the most suitable for the system. This research is expected to enhance the efficiency, safety, and reliability of the pump usage at Perumdam Tirta Khatulistiwa.
Co-Authors Ade Elbani Adiguna, Muhamad Gilang Satria Ahmad Safarudin Ahmad Safarudin Aprilio Givano Arif Rohman Hakim Avianto, Yudi Azka, Achmad Rafiqi Azka, Achmad Rafiqi Dedy Suryadi Dedy Suryadi Desyandri Desyandri Dewi, Suti Kurnia Eko Jatmiko Fitri Imansyah Hadary, Ferry Hadary, Ferry Hafiz Muhardi Hendro Priyatman Hendro Priyatman, Hendro Herry Sujaini Hidayatullah, Bagus Arif Hizkia, Dave Adonia Huda, Zikril Ikhwan, Sulthonik Infantri, Sasis Dedi Jannus Marpaung Jati, Dian Rahayu Jatmiko, Eko Kamel, Ahmad Kusumawardhani, Eka Maharani, Suci Muhammad Angga Muhammad Saleh Muhammad Saleh Nur Qumarni Pontia W, F. Trias Pradhesta, Lena Endriana Prayudi, Ari Putra, Rasmi Gumilang Rachmawati, Angraini Redi Ratiandi Yacoub Rudy Dwi Nyoto, Rudy Dwi Sanjaya, Bomo Wibowo Sasis Dedi Infantri Seno Darmawan Panjaitan Seno Darmawan Panjaitan Setiawan, Septian Suyudi, - Tri Wahyudi W, F. Trias Pontia Wibowo Sanjaya , Bomo Yudi Avianto Zumiat, -