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All Journal ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Journal of Public Health for Tropical and Coastal Region Jurnal Ilmiah Edunomika (JIE)
WATI, DEWI KUSUMA
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Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering

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Paralel Flyback Converter sebagai PFC pada Lampu LED menggunakan Fuzzy Type-2 EFENDI, MOH. ZAENAL; WATI, DEWI KUSUMA; RAHARJA, LUCKY PRADIGTA SETIYA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 4: Published October 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i4.938

Abstract

ABSTRAKPeralatan elektronika umumnya memerlukan catu daya berupa sumber tegangan DC yang berasal dari sumber tegangan AC 220 V yang disearahkan menggunakan penyearah gelombang penuh. Pemasangan filter kapasitor pada sisi output penyearah menyebabkan bentuk gelombang arus masukan terdistorsi sehingga menimbulkan arus harmonisa yang mengakibatkan nilai faktor daya menjadi rendah. Artikel ini membahas mengenai paralel flyback konverter sebagai PFC (Power Factor Correction) pada lampu LED 36 V/60 W menggunakan algoritma fuzzy type-2. Flyback konverter pertama sebagai regulator tegangan DC bekerja dalam kondisi CCM (Continuous Conduction Mode). Flyback konverter kedua sebagai PFC bekerja dalam kondisi DCM (Discontinuous Conduction Mode) sehingga konverter bersifat resistif. Hasil simulasi menunjukkan bahwa paralel flyback konverter dapat memperbaiki faktor daya dari 0.597 menjadi 0.903 dan dapat menjaga tegangan keluaran konstan sebesar 36 V menggunakan algoritma fuzzy type-2 serta arus input yang dihasilkan memenuhi standar internasional hamonisa IEC61000-3-2 kelas C.Kata kunci: PFC, flyback konverter, IEC61000-3-2, lampu LED, fuzzy type-2 ABSTRACTElectronic equipment generally requires a DC voltage source that comes from a rectified 220 AC voltage source using full-wave rectifier. Installing capacitor filter on the output of rectifier makes the input current waveform becoming distorted that cause harmonic current which results in low power factor value. This article discusses parallel flyback converter as PFC (Power Factor Correction) on 36 V/60 W LED lamp using fuzzy type-2 algorithm. The first flyback converter as voltage dc regulator works in CCM (Continuous Conduction Mode). The second flyback converter as PFC works in DCM (Discontinuous Conduction Mode) to make the resistive converter. The simulation results shows the parallel flyback converter can improve the power factor from 0.597 to become 0.903 and can maintain a constant output voltage of 36 V using fuzzy type-2 algorithm and the input current meets the international harmonics standard of IEC61000-3-2 class C.Keywords: PFC, flyback converter, IEC61000-3-2, LED lamp, fuzzy type-2
Role of Social Media and Digital Platforms in Healthcare Marketing: A Scoping Review Wati, Dewi Kusuma; Sriatmi, Ayun; Arso, Septo Pawelas
Journal of Public Health for Tropical and Coastal Region Vol 8, No 1 (2025): Journal of Public Health for Tropical and Coastal Region
Publisher : Faculty of Public Health, Universitas Diponegoro, Semarang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jphtcr.v8i1.24952

Abstract

Introduction: Healthcare providers face increased competition as they expand their facilities and services for patients. Healthcare marketing plays a significant role in their performance, with well-designed strategies resulting in better innovation outcomes and healthcare services. This scoping review analyzed how social media and digital platforms become part of the marketing strategy.Methods: This study employed a scoping review methodology to screen manuscripts from 4 databases: Proquest, Emerald Insight, Springerlink, and Garuda. PEO framework outlined as Population refers to healthcare consumers, Exposure was the digital marketing and Outcome was the effectiveness of social media and digital technologies in hospital. The eligibility criteria included: unrestricted access to the article, published in the last five years, manuscript in English.Results: PRISMA flow chart was used to show each step of the eligibility criteria for article selection. The study selected a total of 7 articles that met the inclusion criteria. Five of the articles showcased hospitals' social media strategies, one highlighted their adoption of social media, and one highlighted the impact of media framing. The social media had been found to positively affected both brand loyalty and the overall customer experience.Conclusion: The report emphasizes how social media and digital platforms are becoming more important in hospital marketing, as well as how they affect consumer satisfaction and brand loyalty. 
ANALISIS FAKTOR – FAKTOR YANG MEMPENGARUHI PENGGUNAAN SISTEM INFORMASI AKUNTANSI PADA PELAKU UMKM JAMU GENDONG DI NGUTER Wati, Dewi Kusuma; Ismunawan, Ismunawan
JURNAL ILMIAH EDUNOMIKA Vol. 8 No. 2 (2024): EDUNOMIKA
Publisher : ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/jie.v8i2.12742

Abstract

This study is targeted at examining factors that influence accounting information systems using variables of business scale, length of business, accounting knowledge & use of technology. This study had a population of 72 businesses and the sampling method used a saturated sample. In order to collect the data, a questionnaire was also used, a multiple linear regression model using SPSS media. The results of the study show that business scale & use of technology have a significant impact on the accounting information system for herbal medicine MSMEs in Nguter. However, accounting knowledge & length of business are not significant in the accounting information system for herbal medicine MSMEs in Nguter. Keywords: MSMEs, business scale, length of business, accounting knowledge, use of technology, accounting information systems
Co-Authors Ayun Sriatmi Ismunawan Ismunawan, Ismunawan Lucky Pradigta Setiya Raharja Mohammad Zaenal Efendi Septo Pawelas Arso