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"Transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage. Transformers act through electromagnetic induction; current in the primary coil induces current in the secondary coil. The use of transformers includes reducing the line voltage to operate low-voltage devices (doorbells or toy electric trains) and raising the voltage from electric generators so that electric power can be transmitted over long distances.Power electronics is a rapidly growing technology encompassing a large variety of applications including automotive, telecommunications, computers and alternative energy system. Traditionally, transformer design has been based on voltage and current operating in low frequency. In switching circuit (SMPS) transformer works at high frequencies which led to considerable reductions in the size of magnetic component. The type of signals to be transferred from the primary to secondary windings dictate the type of transformer that most suitable to the application. Operation of a transformer at higher frequencies will lead reduced magnetizing inductance compared to lower frequencies.This project is aimed to analyse and design a transformer purposed for high frequency uses. The expected outcomes of this project are defining the design factor of a high frequency inductors and transformers. Modelling and simulation of the transformer will be performed as part of this project, along with design approach and design factor."

"This book brings together leading researchers to highlight recent advances and identify promising directions for future development. Motivated by the market for mobile and wireless communications, fully integrated analogue filters for high-frequency applications are now receiving great interest world-wide. Chapters are dedicated to Gm-C filters, MOSFET-C filters, active-LC filters, log-domain filters, switched-current filters, adaptive analogue filters and on-chip automatic filter tuning.The topical nature of the book and calibre of the authors ensures that this book will be of wide interest to the electronics community world-wide."

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Pertanian 4.0 yang merupakan masa depan teknologi pertanian melambangkan revolusi dalam sektor pertanian melalui integrasi teknologi canggih seperti Internet of Things (IoT), pertanian presisi, dan masih banyak lagi. Salah satu metode untuk melibatkan implementasi IoT generasi mendatang dalam pengisian energi proaktif dan jaringan nirkabel generasi mendatang adalah pemanenan energi Frekuensi Radio (RF). Ini adalah proses menyerap energi dari RF dan mengubahnya menjadi listrik. Sebagai alat pemanen energi, digunakan rectenna (penyearah + antena), yang terdiri dari antena penerima, matching network, penyearah RF ke DC, elemen penyimpanan, dan beban. Penelitian ini mengusulkan rangkaian penyearah RF ke DC dengan frekuensi operasi 920 MHz. Berdasarkan hasil simulasi, rangkaian yang dirancang memiliki tegangan keluaran sebesar 3.3 V, arus keluaran sebesar 2.2 mA, dan tingkat efisiensi sebesar 73.31%. Rangkaian ini dibuat dalam sebuah PCB dengan dimensi 4 x 2.4 cm

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Agriculture 4.0, which is the future of agricultural technology, symbolizes a revolution in farming through the integration of advanced technologies such as the Internet of Things (IoT), precision agriculture, and many more. One method for involving the next-generation IoT implementation in proactive energy replenishment and next-generation wireless network is Radio Frequency (RF) energy harvesting. It is the process of absorbing energy from the RF and turns into electricity. As a tool for energy harvesting, a rectenna (rectifier + antenna) is used, which consists of a receiver antenna, matching network, RF-to-DC Rectifier, storage element, and a load. This research proposes an RF-to-DC Rectifier circuit with an operating frequency of 920 MHz. According to simulation results, the designed circuit has an output voltage of 3.3 V, an output current of 2.2 mA, and an efficiency level of 73.31%. This circuit was constructed in a PCB with a 4 x 2.4 cm dimension.

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"Pemanasan Induksi adalah proses pemanasan non kontak. Menggunakan listrik berfrekuensi tinggi untuk memanaskan bahan yang konduktif secara elektrik. Karena non kontak proses ini memiliki keunggulan yaitu tidak mencemari lingkungan sekitarnya. Hal ini juga sangat efisien karena panas dihasilkan pada benda kerja. Dapat dibandingkan dengan metode pemanasan lain di mana panas yang dihasilkan pada nyala api atau elemen pemanas, yang kemudian memanaskan benda kerja. Karena alasan-alasan tersebut mempertegas pemanasan induksi unik untuk beberapa aplikasi dalam industri. Rancang bangun sistem kendali high frequency induction heating pada system pemanasan benda kerja konduktif adalah sistem yang secara khusus dirancang untuk pemanas induksi untuk setiap aplikasi yang bertujuan memanaskan bahan atau benda kerja konduktif secara bersih, efisien dan terkendali. Dengan harapan dengan pengontrolan temperatur ini dapat memberikan hasil yang opimal serta efisiensi yang baik dalam penggunaan energi listrik. Secara umum ada modul ini ada 4 bagian utama yaitu sumber tenaga listrik frekuensi tinggi yang telah dikontrol oleh satu unit mikrokontroler, sensor temperatur LM35 untuk memonitor panas yang terjadi pada benda kerja dan dapat memberikan feedback ke unit pengontrol, kumparan kerja (work coif untuk menghasilkan medan magnet bolak-balik, sebuah benda kerja (workpiece) konduktif listrik yang akan dipanaskan. Juga di lengkapi beberapa komponen pendukung seperti LCD untuk interfacing status kerja sistem secara visual, LED, serta asesoris seperti potensiometer, switch, tombol kerja untuk penyetelan sistem,dan buzzer untuk alarm.

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Induction heating is a non-contact heating process. Using high-frequency electricity to heat the electrically conductive material. Because of this non-contactprocess has the advantage of not polluting the environment. It is also very efficient because the heat generated in the workpiece. Can be compared with other heating methods where heat is generated in the flame or heating element, which then heats the workpiece. Because of these reasons reinforce the unique induction heating for several applications in industry. Design of control system for high frequency induction heating on conductive workpiece heating systems are systems that are specifically designed for induction heating for every application that aims to heat the conductive material or workpiece in a clean, efficient and controlled manner. With expectations by controlling the temperature can give results that optimal and good efficiency in the use of electrical energy. In general there are modules have 4 main parts: a high frequency electric power source that has been controlled by a microcontroller unit, LM35 temperature sensor to monitor the heat that occurs in the workpiece and can give feedback to the controller unit, the coil of work (work coil) to produce alternating magnetic field, a workpiece to be heated electrically conductive. Also in complete several supporting components such as LCD for interfacing visual system working status, LED, and accessories such as potentiometers, switches, buttons work for adjusting the system, and buzzer for alarm."

"Transformer adalah perangkat yang mentransfer energi listrik dari satu bolak-arus sirkuit untuk satu atau lebih sirkuit lainnya, baik meningkat (meningkatkan) atau mengurangi (mengundurkan diri) tegangan. Transformers bertindak melalui induksi elektromagnetik, saat ini di kumparan primer menginduksi arus dalam kumparan sekunder. Penggunaan transformator termasuk mengurangi tegangan untuk beroperasi tegangan rendah perangkat (bel pintu atau listrik mainan kereta) dan meningkatkan tegangan dari generator listrik sehingga listrik dapat dikirim melalui jarak jauh. Elektronika daya adalah teknologi berkembang pesat meliputi berbagai macam aplikasi termasuk otomotif, telekomunikasi, komputer dan sistem energi alternatif. Secara tradisional, transformator desain telah didasarkan pada operasi tegangan dan arus di frekuensi rendah. Dalam switching sirkuit (SMP) transformator bekerja pada frekuensi tinggi yang menyebabkan pengurangan yang cukup besar dalam ukuran komponen magnetik. Jenis sinyal yang ditransfer dari primer ke gulungan sekunder mendikte jenis transformator yang paling cocok untuk aplikasi. Pengoperasian transformator pada frekuensi yang lebih tinggi akan berkurang memimpin induktansi magnetizing dibandingkan dengan frekuensi yang lebih rendah. Proyek ini bertujuan untuk menganalisis dan merancang sebuah transformator bertujuan untuk penggunaan frekuensi tinggi. Hasil yang diharapkan dari proyek ini adalah mendefinisikan faktor desain sebuah induktor frekuensi tinggi dan trafo. Pemodelan dan simulasi dari trafo akan dilakukan sebagai bagian dari proyek ini, bersama dengan pendekatan desain dan faktor desain.

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Transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage. Transformers act through electromagnetic induction; current in the primary coil induces current in the secondary coil. The use of transformers includes reducing the line voltage to operate low-voltage devices (doorbells or toy electric trains) and raising the voltage from electric generators so that electric power can be transmitted over long distances.

Power electronics is a rapidly growing technology encompassing a large variety of applications including automotive, telecommunications, computers and alternative energy system. Traditionally, transformer design has been based on voltage and current operating in low frequency. In switching circuit (SMPS) transformer works at high frequencies which led to considerable reductions in the size of magnetic component. The type of signals to be transferred from the primary to secondary windings dictate the type of transformer that most suitable to the application. Operation of a transformer at higher frequencies will lead reduced magnetizing inductance compared to lower frequencies.

This project is aimed to analyse and design a transformer purposed for high frequency uses. The expected outcomes of this project are defining the design factor of a high frequency inductors and transformers. Modelling and simulation of the transformer will be performed as part of this project, along with design approach and design factor."