Elektrika最新文献

{"title":"Perancangan Prototipe Robot Pembawa Barang Otomatis Berbasis Arduino Uno DIP dengan Sensor Ultrasonic","authors":"A. Azis, Emidiana Emidiana, Fathir Azukruf","doi":"10.26623/elektrika.v15i1.5924","DOIUrl":"https://doi.org/10.26623/elektrika.v15i1.5924","url":null,"abstract":"The tool used to carry goods is a trolley. To simplify the process of carrying goods using a trolley, the trolley can be combined with robot technology. In order for the trolley robot to see objects or the surrounding atmosphere, it needs a sense that can be integrated with a sensory system that can sense the presence of an object, namely an ultrasonic sensor. An ultrasonic sensor is a device that captures the motion of an object and converts it into a sound reflection that can be read and processed by a computer. This sound reflection is an input signal that will be processed on a computer to produce information that is useful for certain purposes on the system. From the results of the tests that have been carried out, the performance of the Arduino Uno DIP-based automatic robot carrier prototype with ultrasonic sensors is in accordance with the design. Where for advanced control, the ultrasonic sensor still responds well to hand objects, bags, hats, plastic, clothes, and books, at a distance of 50 cm. Then for the right turn and left turn control, the ultrasonic sensor responds well to objects at a distance of 5 cm, and for reverse control, the ultrasonic sensor still responds well to objects at a distance of 11 cm-20.5 cm. Furthermore, the ultasonic sensor still responds well in reading hand objects at a distance of 50 cm, when given a load with a weight of 1.0 kg-3.0 kg, where the prototype still moves forward even though it starts to become unstable and experiences a decrease in speed. When given a load of 3.5 kg, the prototype does not move forward or has an error. So it can be concluded that the maximum load of the goods carrier robot prototype is 3 kg. Keywords: Design, Prototype, Carrier, Arduino, Ultrasonic Sensor. ABSTRAKAlat bantu yang digunakan untuk membawa barang adalah troli. Untuk mempermudah proses membawa barang dengan menggunakan troli, maka troli dapat dikombinasi dengan teknologi robot. Supaya robot troli dapat melihat objek atau suasana sekitarnya dibutuhkan sebuah indra yang dapat terintregasi dengan sistem indra yang dapat merasakan keberadaan suatu objek, yaitu sensor ultrasonik. Sensor ultrasonik merupakan perangkat yang berfungsi menangkap gerak suatu objek dan mengubahnya ke dalam bentuk refleksi bunyi yang dapat dibaca dan diproses oleh komputer. Refleksi bunyi ini merupakan sinyal masukan yang akan diproses pada komputer dapat menghasilkan informasi yang berguna untuk keperluan tertentu pada sistem. Dari hasil pengujian yang telah dilakukan, kinerja prototipe robot pembawa barang otomatis berbasis Arduino Uno DIP dengan sensor ultrasonic sesuai dengan perancangan. Dimana untuk kontrol maju, sensor ultrasonic masih merespon dengan baik terhadap objek tangan, tas, topi, plastik, baju, dan buku, pada jarak 50 cm. Kemudian untuk kontrol belok kanan dan belok kiri, sensor ultrasonic merespon dengan baik terhadap objek pada jarak 5 cm, dan untuk kontrol mundur, sensor ultrasonic masih merespon dengan baik terhadap objek p","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45723208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimalisasi Kinerja Proteksi Recloser Jaringan Distribusi 20kV Penyulang RDT03 Menggunakan Algoritma Particle Swarm Optimization","authors":"Heryogka Ahmad Waritza, G. Gunawan, A. Nugroho","doi":"10.26623/elektrika.v15i1.5623","DOIUrl":"https://doi.org/10.26623/elektrika.v15i1.5623","url":null,"abstract":"The reliability of an electric power distribution network system is very important to ensure a good quality of service for consumers. The focus of this study is to find the optimal protection coordination design, topology and operating scheme for RDT03 refiners in the Tambak Aji Industrial Estate. To show the level of reliability and continuity of the electric power distribution network, the SAIFI index (System Average Interruption Frequency Index) and the SAIDI index (System Average Interruption Duration Index) are used. The existing recloser located in section 25 resulted in a SAIFI value of 0.8933 and a SAIDI of 2.407. Using the PSO (Particle Swarm Optimization) optimization method, the results were obtained that the Best Fitness for the most optimal recloser placement was in section 29 with a SAIFI value of 0.32575 and a SAIDI value of 1.0558. This change in recloser placement resulted in a decrease in SAIFI by 36% or by 0.5675 times / year / customer and a decrease in the value of SAIDI by 43.61% or by 1.3649 hours / year / customer. Thus, there is an increase in network reliability if the recloser at the RDT03 feeder is relocated to the location of section 29. Keywords: Reliability, Recloser, SAIFI, SAIDI, Particle Swarm Optimization ABSTRAKKeandalan suatu sistem jaringan distribusi tenaga listrik merupakan hal yang sangat penting untuk menjamin mutu pelayanan yang baik bagi konsumen. Fokus dari penelitian ini adalah untuk mencari desain koordinasi proteksi, topologi dan skema operasi yang optimal untuk penyulang RDT03 di Kawasan Industri Tambak Aji. Untuk menunjukkan tingkat keandalan dan kontinuitas jaringan distribusi tenaga listrik digunakan indeks SAIFI (System Average Interruption Frequency Index) dan indeks SAIDI (System Average Interruption Duration Index). Hasil optimalisasi menggunakan PSO (Particle Swarm Optimization), didapatkan hasil bahwa Best Fitness untuk penempatan recloser yang paling optimal adalah pada section 29 dengan nilai SAIFI sebesar 0.32575 dan nilai SAIDI sebesar 1.0558. Dengan menggunakan PSO, diperoleh lokasi letak recloser yang baru dengan nilai SAIFI yang lebih optimal dengan penurunan sebesar 36% atau sebesar 0,5675 kali/tahun/pelanggan dan penurunan nilai SAIDI sebesar 43,61% atau sebesar 1,3649 jam/tahun/pelanggan. Jika dibandingkan dengan letak recloser exsisting, recloser existing terletak pada section 25 dengan nilai SAIFI sebesar 0,8933 dan SAIDI sebesar 2,407. Dengan demikian terdapat peningkatan keandalan jaringan jika recloser pada penyulang RDT03 direlokasi menuju lokasi section 29.","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46411676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Desain Telemedicine Asam Urat Berbasis Internet of Things (IoT)","authors":"Agus Supriyanto, Andi Kurniawan Nugroho, Sri Heranurweni","doi":"10.26623/elektrika.v15i1.6004","DOIUrl":"https://doi.org/10.26623/elektrika.v15i1.6004","url":null,"abstract":"Gout is the final metabolite of purines. Purines are part of the nucleic acids found in the nuclei of body cells. Increased gout can cause rheumatic pain in the joint area and is often associated with extreme pain for those exposed to the disease. Doctors need to monitor so that they can assist patients in monitoring and treatment. Gout detection devices are only available in hospitals, clinics, health centers, laboratories, and equipment that was previously portable but could not be controlled directly by a doctor. The purpose of this study is to help make it easier for doctors to monitor patients with gout remotely or telemedicine via the internet. The research method uses blood to determine gout levels using the Internet of Things. Data acquisition is carried out with a resistance sensor (Authocheck) which is processed by the Arduino microcontroller. The processed data is then sent to the ESP8266 web server via WiFi. The use of the Internet of Things as a data transmission method for online use does not require human-to-human interaction. The sensor resistance value in the analog range obtained is 441.03 to 782.32 with a sensor voltage of 1.91 to 3.82 volts. The measured gout level is between 4 mg/dL and 8 mg/dL. The percentage of measured data with an average accuracy of 95.74% and an average error rate of 4.26% for the seven test data. Data is displayed directly on the device's LCD screen and on a web server that sends data from the ESP8266. Keywords: gout, Internet of Things, resistance sensor (Autocheck), telemedicine, web server ABSTRAKAsam urat merupakan metabolit akhir dari purin. Purin adalah bagian dari asam nukleat yang ditemukan dalam inti sel tubuh. Asam urat yang meningkat dapat menyebabkan nyeri rematik di area persendian dan sering dikaitkan dengan rasa sakit yang luar biasa bagi yang terpapar penyakit. Dokter perlu memantau agar dapat membantu pasien dalam pemantauan dan pengobatan. Alat pendeteksi asam urat hanya terdapat di rumah sakit, klinik, puskesmas, laboratorium dan alat-alat yang sebelumnya portable namun tidak dapat dikontrol langsung oleh dokter. Tujuan dari penelitian ini membantu memudahkan dokter untuk memantau pasien dengan penyakit asam urat secara jarak jauh atau telemedicine melalui internet. Metode penelitian menggunakan darah untuk menentukan kadar asam urat menggunakan Internet of Things. Akuisisi data dilakukan dengan sensor resistansi (Authocheck) yang diproses oleh mikrokontroler Arduino. Data yang telah diproses kemudian dikirim ke web server ESP8266 melalui  WiFi. Penggunaan Internet of Things sebagai metode transmisi data untuk penggunaan secara online tidak memerlukan interaksi manusia ke  manusia. Nilai  resistansi sensor pada rentang analog yang diperoleh adalah 441,03 hingga 782,32 dengan tegangan sensor 1,91 hingga 3,82 volt. Kadar asam urat yang diukur adalah antara 4 mg/dL dan 8 mg/dL. Persentase data terukur dengan akurasi rata-rata 95,74% dan rata-rata tingkat kesalahan  4,26% untuk tujuh dat","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45443720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kalibrator Infant Warmer Berbasis Arduino Uno Dilengkapi dengan Penyimpanan Data","authors":"Bayu Wahyudi, D. Ningtias, Ardian Widyastuti","doi":"10.26623/elektrika.v15i1.5780","DOIUrl":"https://doi.org/10.26623/elektrika.v15i1.5780","url":null,"abstract":"Calibration is an activity to determine the conventional correctness of the designation value of measuring instruments and measuring materials by comparing them with traceable measuring standards to national standards for units of measure and/or international ones. One example of a tool used for calibration is the Infant Warmer Calibrator. The purpose of this research is to produce a tool that can be used to calibrate and analyze temperature and humidity data on infrant warmers. This tool uses five LM35 type temperature sensors with Arduino as the main controller for this tool, and is also equipped with a DHT11 type humidity sensor, and is also equipped with an SD Card as storage. From the results of the study, different results were obtained with the largest error difference of 1.85% at a test point of 35°C and the smallest error presentation was 1.3% at a test point of 34°C and the tool was functioning properly. Keywords: Kalibrator Infant Warmer, Temperature sensor, Humidity Sensor, SD Card. ABSTRAKKalibrasi adalah kegiatan untuk menentukan kebenaran konvensional nilai penunjukkan alat ukur dan bahan ukur dengan cara membandingkan terhadap standar ukur yang mampu telusur (traceable) ke standar nasional untuk satuan ukuran dan/atau internasional. Salah satu contoh alat yang digunakan untuk kalibrasi adalah Kalibrator Infant Warmer. Tujuan penelitian ini adalah untuk menghasilkan alat yang dapat digunakan untuk melakukan kalibrasi serta melakukan analisis data suhu dan kelembapan pada infrant warmer. Alat ini menggunakan lima sensor suhu type LM35 dengan arduino sebagai pengotrol utama pada alat ini, dan juga dilengkapi dengan sensor kelembapan type DHT11, dan juga dilengkapi dengan SD Card sebagai penyimpanan. Dari hasil penelitian didapatkan hasil yang berbeda-beda dengan selisih kesalahan terbesar 1,85 % pada test point 35°C dan presentasi kesalahan terkecil yaitu 1,3% pada test point 34°C dan alat sudah berfungsi dengan baik.","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44547296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisa Jaringan 4G LTE Provider H3I Menggunakan Software Genex Probe 5.1","authors":"Puri Muliandhi, Ari Endang Jayati, L. Hidayati","doi":"10.26623/elektrika.v15i1.6013","DOIUrl":"https://doi.org/10.26623/elektrika.v15i1.6013","url":null,"abstract":"Telecommunication technology is currently developing so fast, along with the need for people to communicate. 4G LTE network technology has many positive impacts on service users in communication access. Every provider user wants to have good network quality when used in exchanging information and communications. This study discusses the analysis of the quality of the 4G LTE network in the Purwokerto area by taking a drive test data. Analysis of the drive test is carried out using Map Info software to determine the signal condition in accordance with the range provider and the calculation of the percentage each month with 4G parameters, namely RSRP (Reference Signal Received Power) and SINR (Signal to Interference Noise Ratio). The result of this analysis is a comparison of network quality in December 2019 based on the RSRP and SINR parameter values. In December, the RSRP value that met the standard ≥ = -95 dBm reached a percentage of 77.23% and in March it reached a percentage of 81.86%. For the SINR value in December 2019 which met the standard ≥ = 12 dB, it reached a percentage of 36.82% and in March it reached a percentage of 46.08%. Keywords: Network Analysis, LTE, Genex Probe, RSRP, SINR  ABSTRAK  Teknologi telekomunikasi saat ini berkembang begitu cepat, seiring dengan kebutuhan orang dalam berkomunikasi. Teknologi jaringan 4G LTE memberikan banyak dampak positif bagi pengguna layanan dalam akses komunikasi. Setiap pengguna provider pasti berkeinginan untuk memiliki kualitas jaringan yang baik saat digunakan dalam bertukar informasi dan komunikasi. Penelitian ini membahas tentang Analisa kualitas jaringan 4G LTE di daerah Purwokerto dengan pengambilan data drive test. Analisa drive test dilakukan menggunakan software Map Info untuk mengetahui kondisi sinyal yang sesuai dengan range provider dan perhitungan persentase setiap bulannya dengan parameter 4G yaitu RSRP (Reference Signal Received Power) dan SINR (Signal to Interference Noise Ratio). Hasil dari analisa ini adalah perbandingan kualitas jaringan pada bulan Desember 2019 berdasarkan nilai parameter RSRP dan SINR. Untuk bulan Desember nilai RSRP yang memenuhi standar ≥=-95 dBm mencapai persentase 77.23% dan bulan Maret mencapai persentase 81.86%. Untuk nilai SINR bulan Desember 2019 yang memenuhi standar ≥=12 dB mencapai persentase 36.82% dan bulan Maret mencapai persentase 46.08%. ","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41355661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisa Performa Motor Hy-2750b, Motor Mg995, Motor Ds3225mg, dan Motor 24h2a4428 sebagai Penggerak Portable Continuous Passive Motion (CPM)","authors":"I. A. W. Kusuma, Sugeng Santoso","doi":"10.26623/elektrika.v15i1.6362","DOIUrl":"https://doi.org/10.26623/elektrika.v15i1.6362","url":null,"abstract":"Continuous Passive Motion (CPM) is a therapeutic tool to assist patients in moving their joints after the patient has experienced trauma or underwent joint surgery. The CPM machine is used to avoid joint stiffness in the patient. Joint stiffness can be caused because patients who have undergone joint surgery are reluctant to move their joints due to pain. The design of the CPM machine that will be carried out has motion in flexion and horizontal abduction. The choice of the type of DC motor as the driving force for the CPM machine will determine the ability (performance) of the CPM in carrying out the rehabilitation process for postoperative knee fractures. Movements in restoring and improving the range of motion of the elbow are flexion movements, extension movements, pronation movements and supination movements. From the results of the study, it can be concluded that there is one motor that meets the standards that can be used as a driving motor for Portable Continuous Passive Motion (CPM), namely the HY-2705B type motor. The HY-2705B motor meets minimum standards in terms of motor torque, motor rotation angle, working voltage, motor working temperature, and motor weight. For the other three motors Motor MG995, Motor 24H2A4428, and Motor DS3225MG there is one standard that is not met.     Keywords: Continuous Passive Motion, CPM, Fracture, HY-2705B, MG995, 24H2A4428, DS3225MG ABSTRAK  Continuous Passive Motion (CPM) merupakan alat terapi untuk membantu pasien dalam menggerakkan sendi setelah pasien mengalami trauma atau menjalani operasi sendi. Mesin CPM digunakan untuk menghindari terjadinya kekakuan sendi pada pasien. Kekakuan sendi dapat disebabkan karena pasien yang telah menjalani operasi sendi enggan menggerakan sendinya akibat rasa nyeri. Perancangan mesin CPM yang akan dilakukan memiliki gerak secara fleksi dan horisontal abduksi. Pemilihan jenis motor DC sebagai penggerak mesin CPM sangat menentukan kemampuan (performa) CPM dalam melakukan proses rehabilitasi fraktur lutut pasca operasi. Gerakan-gerakan dalam mengembalikan dan memperbaiki lingkup gerak siku tangan adalah gerakan flexion, gerakan extention gerakan pronation dan gerakan supination. Dari hasil penelitian dapat disimpulkan bahwa terdapat satu motor yang memenuhi standar yang dapat digunakan sebagai motor penggerak untuk Portable Continuous Passive Motion (CPM) yaitu motor jenis HY-2705B. Motor HY-2705B memenuhi standar minimal baik dari torsi motor, sudut putar motor, tegangan kerja, suhu kerja motor, maupun berat motor. Untuk tiga motor yang lain Motor MG995, Motor 24H2A4428, dan Motor DS3225MG ada salah satu standar yang tidak terpenuhi.","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44322070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisa Perbandingan Pengasutan Motor Induksi 3 Fasa Soft Starter IGBT Berbasis Sine-Triangle dan Sine-Sawtooth PWM Menggunakan Matlab Simulink","authors":"Miftakhul Umam Ulil Anwar, Dedi Nugroho, A. Nugroho","doi":"10.26623/elektrika.v14i2.5200","DOIUrl":"https://doi.org/10.26623/elektrika.v14i2.5200","url":null,"abstract":"TThe induction motor is the electric drive for industry so special attention is needed for maintainance and control system. Induction motors pulling high starting currents at starting. Various starting methods have been developed to overcome this problem, one of which is the Direct On-Line starting method. This method is the most common method because it is the easiest and cheapest to use, but there is high inrush current arround 6-8 times the nominal current will pulled by induction motor when using this method. This starting current can cause several disturbances, both from the electricity network, damaging the motor and can cause fatal losses to the electric power system.This research discusses the application of the Soft Starter starting method to a 3-phase induction motor to reduce the high starting current pulled by a 3-phase induction motor. The induction motor used in this study is a squirrel cage rotor type with 4kVA power, a rotational speed of 1430 r.p.m, a frequency of 50 Hz, and a voltage of 380 V. The Soft Starter system in this study uses 6 Insulated Gate Bipolar Transistor (IGBT)power electronics switches which are controlled using a sine-triangle PWM and sine - Sawtooth PWM. MATLAB SIMULINK is used to simulate the application of the soft starter starting method on a 3-phase induction motor.The results prove that the Soft Starter method is successful in reducing staring currents when compared to the Direct On-Line method. When using the Direct On-Line method the starting current is 77.29 – 78.80 A, when using the sine-triangle soft starter method the starting current is 60,46 – 61,46 A, and when using the sine-sawtooth soft starter method. starting 59,96 – 60,60 A. However, at steady state conditions, the Direct On-Line rotational speed is better than the Soft Starter because when using the Soft Starter method the voltage is cut. Soft St","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47712637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Penguat Jembatan dengan Untai Pembalik Fase","authors":"Budihardja Murtianta, E. Sari","doi":"10.26623/elektrika.v14i2.5329","DOIUrl":"https://doi.org/10.26623/elektrika.v14i2.5329","url":null,"abstract":"The maximum output voltage of the audio amplifier is limited to the magnitude of the power supply voltage of the power transistor or the operational amplifier on the final amplifier. This limits the maximum power of the audio amplifier output. The way to enlarge the output power of the audio amplifier without increasing the voltage is the bridge method or bridged modes. With this method a bridge amplifier will be generated. This Bridge Amplifier is also known as Bridge-Tied Load (BTL) or Bridged Transformerless. The principle of Bridge Amplifiers is to use a pair of final amplifiers whose outputs have opposite phase each other. There are 3 ways to make a pair of power amplifiers have opposing phases: with internal modification, with an audio transformer (phase splitting audio input transformer) and with a simple active phase reversal splitter circuit). This paper will discuss Bridge Amplifiers with simple phase inverting circuits. A pair of audio power amplifiers using two TDA2050 chips which are operated at ± 19 Volt supply voltage. The phase inverting circuit using IC TL072. Sinusoidal signal with an amplitude of 200 mVp and a frequency of 1 KHz is used as an input signal. The results to be observed and measured are gain, input, output and bandwidth of the bridged amplifier compared to the usual amplifier","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49656559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perencanaan Pembangkit Listrik Tenaga Surya Di Perumahan Karyawan Blok B55 PT. Cipta Lestari Sawit Bumirejo Estate","authors":"Emidiana Emidiana, P. Perawati, Haidar Rudin","doi":"10.26623/elektrika.v14i2.4733","DOIUrl":"https://doi.org/10.26623/elektrika.v14i2.4733","url":null,"abstract":"Housing employees of PT. Cipta Lestari Sawit Bumirejo Estate in block B55 is located in the middle of an oil palm planta- tion, so the state electricity company network cannot reach the housing. So, this housing uses a diesel power plant (PLTD) as a source of electricity, its operational hours are limited and it also causes noise and air pollution. From this problem, one suitable solution is to build a solar power plant (PLTS) that does not cause noise and air pollution and its operating hours can be adjusted as needed. In planning PLTS, there are main components that need to be calculated including Solar Panels, Solar Carger Controller (SCC), Batteries, and Inverters. For planning PLTS in employee housing block B55 PT. Cipta Les- tari Sawit Bumirejo Estate requires 273 solar panels with a capacity of 300 wp per unit, 53 solar charge controllers (SCC) with a capacity of 80 amperes, 34 batteries with a capacity of 2000 Ah per unit, and 68 units with a capacity of 6000 watts per unit. to supply electricity to 70 houses and 8 street lights.","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48708932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sistem Monitoring Sungai Berbasis IoT","authors":"Arga Dwi Pambudi, Sari Ayu Wulandari","doi":"10.26623/elektrika.v14i2.5754","DOIUrl":"https://doi.org/10.26623/elektrika.v14i2.5754","url":null,"abstract":"<p><em>Water pollution often occurs due to the disposal of household waste (solid waste and liquid waste) as well as industrial </em><br /><em>waste, small industry and non-organic waste. This waste will be disposed of through channels which then flow into rivers. The</em><br /><em>purpose of this research is to make a device that can determine the condition of river water, which is polluted or not from a</em><br /><em>long distance. The method used in this study is by taking samples from river water that can represent polluted and unpolluted,</em><br /><em>then data is taken from these samples which are then processed so that their condition can be known. The conditions that have</em><br /><em>been obtained are then displayed via the web.</em></p>","PeriodicalId":31998,"journal":{"name":"Elektrika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41429133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}