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All Journal Kubik TELEKONTRAN: Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan KUBIK: Jurnal Publikasi Ilmiah Matematika Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat Journal of Engineering and Technology Innovation
David Eka Putra
Politeknik Negeri Padang
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Mathematics Transportation

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Implementasi Wastafel Otomatis untuk Pencegahanan Penularan COVID-19 Dedi Kurniadi; Randy Heriyanto; David Eka Putra; Zulharbi -; Nadia Alfitri; Tuti Anggraini; Albar -; Ifni Joi; Yul Antonisfia
Jurnal Abdimas: Pengabdian dan Pengembangan Masyarakat Vol 3 No 1 (2021)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.567 KB)

Abstract

Mencuci tangan merupakan hal sangat penting dan sangat dianjurkan untuk menjaga kodisi kesehatan terutama selama masa pandemi wabah covid-19 ini. Untuk pencucian tangan dengan mengggunakan kran yang digunakan secara bersama menimbulkan ke khawatiran bagi masyarakat karena masih membuka peluang untuk penyebaran virus corona melalui pengguna sebelumnya. Sehingga pencucian tangan dengan menggunakan pedal menjadi alternatif yang bisa dimanfaatkan karena pengguna tidak memegang kran air secara langsung, pengguna cukup menginjak pedal yang sudah disediakan pada bahagian bawah wastafel untuk mengaktifkan kran air. Pemberian dua buah wastafel otomatis yang diposisikan di pasar bawan dan kantor wali nagari Bawan kecamatan ampek nagari ini bisa memberikan kebiasaan kepada pengunjung, baik yang berada di pasar ataupun di kantor wali nagari untuk terbiasa mencuci tangan. Selain itu, hal ini juga akan memberikan kontribusi untuk menghambat penyebaran virus corona.
Adaptive Fuzzy-PID Auto-Tuning for DC Motor Speed Control Under Varying Damping Coefficients Halim Mudia; Apriska Prameswari; Audy Audy; David Eka Putra; Firdaus Firdaus
Journal Of Engineering And Technology Innovation ( JETI ) Vol. 3 No. 01 (2026): Journal Of Engineering And Technology Innovation ( JETI )
Publisher : Rey Media Grafika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66084/jeti.v3i01.598

Abstract

DC motors are common in industry due to their simplicity, reliability, and ease of control. However, their speed regulation is sensitive to parameter changes and load disturbances. Variations in parameters like damping coefficients, caused by friction, temperature, and wear, can impair fixed-gain PID controllers. This paper introduces an adaptive fuzzy-PID auto-tuning (AFPAT) scheme to ensure robust speed control amid uncertainties and load disturbances. The controller uses a Sugeno fuzzy system to adjust PID gains online based on speed error (e) and derivative error (de). A second-order DC motor model assesses robustness by varying damping coefficients across five scenarios (4.54 ≤ a1 ≤ 13.62) and a 50 rpm load disturbance at 900 rpm setpoint. Performance measures include steady-state error, overshoot, settling time, and recovery time post-disturbance. Results show the controller achieves zero steady-state error and overshoot with settling times from 2.74 to 4.28 seconds and recovery times from 3.05 to 4.58 seconds. Compared to open-loop, with a steady-state error of 2963, the controller demonstrates robust speed regulation under parameter variations and disturbances.
5G Rollout Planning at Frequency 3.5 GHz: Study Case in Ibu Kota Negara Amran Paso Salmeno; David Eka Putra
Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan Vol. 14 No. 1 (2026): TELEKONTRAN vol 14 no 1 April 2026
Publisher : Program Studi Teknik Elektro, Fakultas Teknik dan Ilmu Komputer, Universitas Komputer Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/telekontran.v14i1.19540

Abstract

In tropical countries where the rainfall intensity is constantly high, the 3.5 GHz band is a valuable spectrum for the fifth generation (5G) broadband implementation. That is because it provides a balanced trade-off between high capacity and resilience to rain attenuation in tropical climates. However, deploying this band faces regulatory, legal, and technical constrains, especially related to legacy spectrum allocation. This work focuses on key challenges in deploying 3.5 GHz band for 5G network in Indonesia, including regulatory, legal, and technical factors. Indonesia’s new capital city, Ibu Kota Negara (IKN), a smart city with a population projection of 1.9 million by 2045, is used as a case study. A quantitative network planning approach is applied to evaluate coverage and capacity, resulting in an estimated cell radius of 992.4 m, a requirement of approximately 245 gNodeBs, and a total offered throughput of 16.49 Tbps. We analyze the implication of mid-band spectrum characteristics and regulatory limitations on the network deployment planning. The findings are expected to provide a better understanding in spectrum management and network planning, particularly in developing new smart cities. 
Comparative Evaluation of RK4 and ABM4 Methods for Underdamped Transient Response Analysis of RLC Circuits David Eka Putra; Elvi Syukrina Erianto; Halim Mudia
KUBIK Vol 10 No 2 (2025): IN PRESS
Publisher : Department of Mathematics, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/kubik.v10i2.50630

Abstract

The transient response of series RLC circuits in the underdamped regime displays oscillatory behavior that requires numerical method capable of preserving both amplitude and phase accuracy. This study aims to compare the numerical performance of two fourth-order integration methods, namely the classical Runge-Kutta method (RK4) and the Adams-Bashforth-Moulton predictor-corrector method (ABM4), in simulating the transient response of a series RLC circuit. The circuit dynamics are formulated as a system of first-order ordinary differential equations derived from Kirchhoff’s Voltage Law and solved numerically using both methods. The simulations are performed using practical circuit parameters representative of low-power AC systems and zero initial conditions. Numerical simulation is evaluated in terms of computational efficiency, global accuracy measured by root mean square error relative to the analytical solution, and local accuracy assessed through peakwise relative error at the first oscillation peak. The results show that ABM4 consistently requires less computational time than RK4 for the same number of time steps due to its multi-step formulation. However, RK4 provides smaller global and peakwise errors, indicating superior phase accuracy. These results highlight a trade-off between computational efficiency and numerical accuracy in underdamped RLC transient simulations.
Comparative Evaluation of RK4 and ABM4 Methods for Underdamped Transient Response Analysis of RLC Circuits David Eka Putra; Elvi Syukrina Erianto; Halim Mudia
KUBIK Vol 10 No 2 (2025): IN PRESS
Publisher : Department of Mathematics, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/kubik.v10i2.50630

Abstract

The transient response of series RLC circuits in the underdamped regime displays oscillatory behavior that requires numerical method capable of preserving both amplitude and phase accuracy. This study aims to compare the numerical performance of two fourth-order integration methods, namely the classical Runge-Kutta method (RK4) and the Adams-Bashforth-Moulton predictor-corrector method (ABM4), in simulating the transient response of a series RLC circuit. The circuit dynamics are formulated as a system of first-order ordinary differential equations derived from Kirchhoff’s Voltage Law and solved numerically using both methods. The simulations are performed using practical circuit parameters representative of low-power AC systems and zero initial conditions. Numerical simulation is evaluated in terms of computational efficiency, global accuracy measured by root mean square error relative to the analytical solution, and local accuracy assessed through peakwise relative error at the first oscillation peak. The results show that ABM4 consistently requires less computational time than RK4 for the same number of time steps due to its multi-step formulation. However, RK4 provides smaller global and peakwise errors, indicating superior phase accuracy. These results highlight a trade-off between computational efficiency and numerical accuracy in underdamped RLC transient simulations.
Co-Authors Albar - Amran Paso Salmeno Apriska Prameswari Audy Audy Dedi Kurniadi Elvi Syukrina Erianto Firdaus Firdaus Halim Mudia Halim Mudia Ifni Joi Nadia Alfitri Randy Heriyanto Tuti Anggraini Yul Antonisfia Zulharbi -