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"ABSTRACTThis paper presents the small-signal modeling of a Single-Ended Primary Inductor Converter power stage operating in discontinuous conduction mode using the sampled-data modeling technique. In addition, two algebraic manipulating features are revealed; the simpler periodic solution determination by the concept of Volt-Second and Capacitor-Charge balance, and the replacement of the expression involving the singular matrix by the equivalent function with the s-domain matrix. Four pulse transfer functions are derived from the model: the smallsignal input-to-output voltage pulse transfer function, the small-signal duty duration-to-output voltage pulse transfer function, the input-to-output voltage pulse transfer function, and the duty duration-to-output voltage pulse transfer function. The model verification is analyzed by the simulation results. The response sequences from the pulse transfer functions oscillate by the same phase and frequency to the one from the simulation with slightly peak amplitude differences, confirming the validity of the acquired pulse transfer functions."

"Omar Abu Mohareb proposes a novel dynamic inductor control (DIC) that can be generally applied to various DC-DC converter types. The aim is to improve the converter efficiency throughout controlling the inductance value at all operating points without consequential complexity or increase in the inductor cost and size. The dynamic inductor control implies the maximum energy transfer (MET) concept to improve the DC-DC converter efficiency and preserve a fast system dynamics against load changes at the same time.ContentsEffects of Varying Inductance Value on Converter Efficiency and PerformanceBoost Battery Charger ModelingDevelopment of Dynamic Inductor Control (DIC) and Maximum Energy Transfer (MET) ConceptsDynamic Inductor Control Concept Simulation and Implementation"

"Dalam perkembangan teknologi yang sermakin pesat, kebutuhan akan sumber energy semakin besar pula, penelitian demi penelitian mencari sumber energy baru atau alternative telah banyak dikembangkan. Salah satunya yang mendapat perhatian adalah solar cell system, menggunakan intensitas cahaya matahari menjadi sumber listrik mengakategorikannya menjadi salah satu jenis energy terbarukan. Namun intensitas cahaya matahari yang berubah-ubah mengakibatkan dibutuhkannya suatu perangkat yang mampu menaikkan jika intensitas matahai menurun. Adalah boost converter yang pada akhirnya didisain untuk dapat memenuhi kebutuhan ini. Menghasilkan nilai magnitude keluaran lebih besar dari pada masukan merupakan tujuan dari rangkaian ini dibuat.

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The technology improvement were going faster nowadays, the needed of energy usage was more and more bigger, research of finding and explore a new or alternative energy becoming trend. one of them is solar cell system, using sun's light intensity as electric supply and categorized as renewable energy. But the suns light carateristics which is non-stable intensity make the system need an aquipment to support. boost converter are design to meet the requirements. making output voltage higher than input in magnitude is the purpose of it. by analized the respond of input and output power with differentiation of PWM controller would make clear of design a better equiptment."

"ABSTRAKBoost converter adalah suatu rangkaian elektronika yang dapatmenaikkan nilai tegangan keluaran. Nilai tegangan output yang dihasilkan dapat diatur dengan merubah nilai duty cycle. Contoh penggunaan rangkaian ini adalah pada sistem solar cell. Karateristik intesitas matahari selalu berubah ubah terhadap waktu, cuaca dan iklim sehingga menjadikan sel surya tidak maksimal untuk digunakan jika ditempatkan secara pasif. Salah satu dampaknya adalah perubahan nilai tegangan yang tergantung pada intensitas cahaya yangditerima oleh sel surya. Induktor memegang peran yang cukup penting pada boost converter. Fungsi induktor pada boost converter adalah untuk menyimpan energi listrik, energi ini nantinya akan disalurkan ke beban. Sehingga tegangan pada beban adalah hasil dari tegangan input ditambah dengan energi yang tersimpan pada induktor, sehingga tegangan output boost converter menjadi lebih besar dari pada tegangan input. Dalam penelitian ini akan dibahas mengenai perancangan induktor toroid binokuler. Induktor ini akan diujikanpada boost converter yang bekerja pada mode kontinyu dengan frekuensi switching 10 KHz. Tegangan input dikontrol dengan variac dan dinaikkan secara bertahap sampai terjadi kenaikkan suhu induktor hingga 41 derajat celcius. Pengujian dilakukan untuk mengetahui efisiensi boost converter.

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ABSTRACTBoost converter is an electronic circuit that can increase the value of the output voltage. The resulting output voltage value can be adjusted by changing the duty cycle value. The example of its application is on solar cell system. The characteristic intensity of the sun is always changing with time, weather and climate. It makes solar cell was not optimal for use if placed passively. The consequence is the voltage value changes depending on the intensity of light received by the solar cells. The inductor function in boost converter is used to store electric energy, then electric energy will be transmitted to the load. So that

the voltage at the load is the result of the input voltage plus the energy stored in the inductor, so the boost converter output voltage becomes greater than the input voltage. In this research, we will design an binoculars toroid inductor. This inductor will be tested to boost converter that works in continuous mode with 10 KHz frequency switching. The input voltage is controlled by using variac. We increase that voltage step by step until the inductor temperature showed at 41 degree celcius. The testing is to know the efficiency of boost converter toward number of inductor winding, input voltage variations and load variations.

terhadap variasi jumlah lilitan induktor, variasi tegangan input dan beban."

"ABSTRAKSkripsi ini membahas tentang karakteristik dari sebuah induktor toroid berintiferite. Menganalisa bagian induktor dalam rangkaian boost converter yangmeliputi cara kerja induktor dengan bahan ferite dan dengan bentuk toroid, caramembuat induktor bentuk toroid dan penyelesaian masalah yang akan timbul darirangkaian boost converter sehingga nantinya bisa mendapatkan karakteristik dariinduktor berbahan ferite dengan bentuk toroid

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AbstractThis thesis discusses the characteristics of an inductor toroid core ferite.Analyzing the inductor in the boost converter circuit which includes the workingsof the inductor with ferite material and the shape of the toroid, how to make theinductor toroid shape and resolution of problems that would arise from the boostconverter circuit so that later can get the characteristics of inductors made with atoroid ferite."

"ABSTRAKPenelitian ini membahas karakteristik dan perancangan induktor tipe E tekniktape winding pada boost converter. induktor yang digunakan adalah tipe Edengan alasan harga ekonomis dan mudah didapatkan. Teknik lilitan yangdigunakan adalah tape winding, teknik tersebut menggunakan lempengan tembagasebagai lilitan. Induktor Tipe E akan diuji dengan menggunakan boost converter.Cara pengujiannya adalah dengan memberikan variasi tegangan masukan,switching frekuensi, dan beban lampu pijar. Dari pengujian tersebut nantinya bisamendapatkan karakteristik dari induktor tipe E yang menggunakan teknik tapewinding.

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AbstractIn this research, the characteristics and design of inductors E type with tapewinding technique on boost converter is discussed. Inductor type used is Ebecause it is easy to find and economical in price. Tape winding technique is usedin this research. This technique uses copper sheet as coil. Inductor E type will betested by using boost converter. The testing of inductor E type is by givingvariation of input voltage, switching frequency, and incandescent loads. The resultof the testing will be able to get the characteristics of the inductor typeE using tape winding technique."

"This book focuses on the applications of Equivalent-Small-Parameter Method (ESPM) in solving the steady-state periodic solutions, as well as stability analysis, of kinds of open-loop or closed-loop operated DC/DC converters, such as PWM, quasi-resonant and resonant ones. The analytical expressions of DC components and harmonics of state variables (inductor current and capacitor voltage) with DC/DC converters can be obtained by ESPM, which can be helpful to understand the nonlinear operating mechanism of switched-mode converters. It can also be useful for stability analysis and design for practical converters. Modeling and analysis on all kinds of DC/DC converters are introduced in detail in this book, along with a large amount of simulation or experimental waveforms to verify the correctness of the theoretical analysis based on ESPM."