Muntaha Hasanah
Universitas Pendidikan Indonesia

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Analisis Rangkaian Komparator dengan Variasi IC Op-Amp yang Tersedia pada Circuit Wizard Gita Alisrobia; Hani Nur Asri; Makna A’raaf Kautsar; Muhammad Satrio Dwi Utomo; Muntaha Hasanah; Vina Fujiyanti
Circuit: Jurnal Ilmiah Pendidikan Teknik Elektro Vol 6, No 2 (2022)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/crc.v6i2.11892

Abstract

This research was conducted on the Circuit Wizard simulator application to simplify the students, especially in the field of Telecommunications Systems, Indonesia Education University, Purwakarta for understanding of the characteristics of each Operational Amplifier with a comparator circuit. In addition, this article presented and tested a comparator circuit to compare the results of two voltages, namely inverting and non-inverting Op Amps. The method used in the research, by making a comparator circuit with 10 different types of Operational Amplifiers. This is carried out to get more valid comparison result and the simulation is run for six times. The simulation was conduct in two comparison conditions with a Vin(+) value of 6V, a predetermined Vin(-) value and a DC voltage flowing of 12V. The results of the analysis through simulations with 10 types of Operational Amplifiers produced different outputs. In principle, it can be influenced by V rail-to-rail, intrinsic circuit, Zin, Zout, Pin and the different characteristics of each Operational Amplifier model. As a comparison, based on its characteristics, the LM741 data sheet has a value of Vs = ±15 V (output voltage swing) if RL 10 kΩ and RL 2kΩ. Whereas in the data sheet LM258 has a value of VS = 30 V if RL = 2 kΩ, VS = 30 V if RL 10 kΩ, VS = 5 V if RL 2 kΩ for positive rail, and VS = 5 V if RL 10 kΩ for negative rails. It can be concluded that the Circuit Wizard software makes it easy to simulate the comparator circuit, so it suggested to be simulated on other materials.
IoT-Based Smart Plug with Real-Time Energy Measurement Optimization and Adaptive Current Cutoff Muntaha Hasanah; Dewi Indriati Hadi Putri; Hafiyyan Putra Pratama
Jurnal Elektronika dan Telekomunikasi Vol. 25 No. 1 (2025)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jet.673

Abstract

The use of electrical energy as a primary power source is increasing, with the residential sector being one of the largest consumers. Electrical energy expenditure often occurs accidentally, potentially leading to energy waste. This research develops an IoT-based electricity usage monitoring system to minimize electrical energy waste and help users improve efficiency and protection against voltage spikes using the R&D approach with a waterfall model.There are 3 layers of IoT architecture using the PZEM-004T sensor as a measuring device for electrical parameters and ESP8266 as a communication module where the results of the sensor readings will be displayed in real-time on the LCD and Blynk with a time difference of 1.6 seconds, in addition to the cost indicator, and the current flowing conditions are also displayed. Sensor readings are valid with values < ± 0.5% for current and voltage and < ± 1% for power readings. System monitoring tests were carried out on 10 electronic devices, and the results of the estimated electricity costs from the use of electrical energy of these electronic devices were obtained. The system is also equipped with a protection feature displayed with a warning indicator, where if the current exceeds 3.1A, the power will automatically be cut off within 15 seconds. This system provides a solution to the efficiency of electrical energy expenditure and provides more protection.