This paper proposes a multilevel flying capacitor dc/dc boost converter (FCBC) with small capacitance of the for reduction size. In this paper, design methods inductor and in n-level FCBC are principally experimentally confirmed. Furthermore, is designed based on maximum product voltage-time, regardless number level. Meanwhile, minimum switching device voltage stress, output ripple influences. Moreover, achieved efficiency three-level 98.5% at power 1 kW. Finally, effectiveness capacitances...

Solar power generation had been used as a renewable energy since years ago. Residential that uses solar their alternative supply will bring benefits to them. The main objective of this project is develop an automatic tracking system which keep the panels aligned with Sun in order maximize harvesting power. tracks maximum intensity light. When light decreasing, automatically changes its direction get LDR detector trace coordinate Sun. While rotate appropriate position panel, DC geared motor...

<p dir="ltr"><span>Autism Spectrum Disorder (ASD) is distinguished in detailed with diverse assemblage neural behaviours, diagnosed over the recent time of years. These ASD are developed using increased internal connectivity among units functional brain. Since Autism characteristics tend to occur months or even years, cognitive system for an early diagnosis badly required overcome complexities accurate prediction. Electroencephalogram (EEG) common technique analysing brain’s...

Performance of underground XLPE cables in service is critical because ageing mechanisms influences. One the techniques to evaluate performance aged and unaged based on tan delta capacitance measurements cable insulations. This study focuses which rated at 11 kV 22 for both 1-core 3-core types. Tan data are obtained using a Schering bridge instrument. performed ambient temperature (about 27degC) 50 Hz power frequency. The analysis show that values increased proportion aging time cables....

The purpose of the present paper is to analyze input inductor design and establish relationship between capacitance flying capacitor output voltage ripple in order reduce size weight DC-DC boost converter (FCBC). inductance designed by considering maximum current ripple, experimental results are used confirm that within value. Furthermore, according specifications, required an approximately 25% a conventional two-level converter, core volume 35% converter. Moreover, confirmed be independent...

This paper proposes a Flying Capacitor DC/DC Boost Converter (FCBC) with small capacitance of the flying capacitor. As result size and weight proposed converter can be reduced. The capacitor is designed based on switching device voltage rating regardless output ripple influences. Moreover, achieved maximum efficiency 3-level FCBC 98.5% at power 1 kW. Finally, effectiveness capacitances in 5-level FCBCs are investigated. characteristics distorted across an input source inductor current to...

The paper proposes a Marx topology DC-DC boost converter (MTBC) with high boot ratio, where parallel connection is applied on the input side in order to reduce conduction and copper losses while series output voltage stress switching devices. With proposed circuit configuration, ratio achieves efficiency. A three-stage MTBC of 8.33 between voltages was designed constructed. maximum efficiency 94.5% achieved MTBC. loss analysis showed that iron were dominant. volume requires approximately 23%...

In this work, a compact dual-band semi-flexible antenna operating at 2.45 GHz and 5.8 for the industrial, scientific medical (ISM) band is presented. The fabricated on substrate material, Rogers Duroid RO3003™ with low-profile feature dimensions of 30×38 mm2 which makes it good solution wearable applications. Bending investigation also performed over vacuum cylinder diameters are varied 50 mm, 80 mm 100 that represents average human arm’s diameter. bending shows reflection coefficients all...

In this paper, we propose a minimization design method of the inductance and capacitance flying capacitors for multi-level capacitor DC-DC boost converter (FCBC). The effectiveness small capacitances in three-level five-level FCBCs is investigated. We experimentally confirmed that distortion voltage across input source inductor drastically reduced by increasing number levels. Thus, value can be used capacitors, respectively, an n-level FCBC. Therefore, passive components achieved. Moreover,...

This paper describes the detailed procedures on simulation techniques of air breakdown to evaluate associated electric field values. Using COMSOL Multiphysics, value maximum and its most likely location which appears just before a occurs can be determined. A non-uniform configuration in rod-plane gap provides very high upon breakdown.

Flying capacitor boost converter (FCBC) is one of the possible power for high applications such as solar systems and electric vehicles system so on. The aim this paper to establish relationship between capacitance flying output voltage ripple. 3-level FCBC prototype has been constructed parameters design confirmation. Experimental result shows that input current ripple within value. By identifying ripple, inductance inductor estimated it needs approximately only 25% compared 2-level...

This paper analyses a 3-phase interleaved DC-DC boost converter for the conversion of low input voltage with high current to higher DC output voltage. The operation multi-parallel converters is controlled by switching signals 120 degrees phase-shifted. Therefore, this circuit configuraion, evenly shared among parallel units and consequently stress reduced on semiconductor devices contributes reduction overall losses. simulation hardware results show that conduction losses were approximately...

This paper proposes a development of Pulse-Width Modulation (PWM) switching signals based on Field Programmable Logic Array (FPGA) and Digital Signal Processor (DSP) to control multi-input interleaved DC/DC converter (MIC). The proposed PWM for the MIC do not only require duty cycle, but also operation at different frequency. In order solve this problem, simple programmable scheme using digital controller can be employed facilitate realization generation. are designed by Altera Cyclone II...

In this study, a modified single-switch bridgeless power factor correction (PFC) single-ended primary-inductor converter (SEPIC) structure is proposed. The major practical drawbacks of the existing are presence circulating current and high maximum stress at input capacitor line diodes. Therefore, to overcome these problems, restructured by repositioning diodes in series with inductors. Besides, principle design parameters optimisation used based on balancing energy compensation between...

<p>The continuously increasing demand for control on electric power equipment has led to the rapid technological development in various applications such as renewable energy, drives, and communication. Pulse Width Modulation (PWM) switching is an important technique output voltage. PWM signals can either be generated using digital controller or analog controller. Digital controllers are widely used generate due their reliability solving complex algorithms within short amount of time....

This thesis provides a thorough investigation into the identification of bipolar disorder through analysis EEG signals utilizing various machine learning methodologies. The research project comprised four main steps: data acquisition, signal preprocessing, feature extraction, selection, and classification. were collected from individuals diagnosed with during acquisition phase. Preprocessing methods employed on electroencephalogram (EEG) to remove any unwanted noise, after which extraction...

This paper proposes an interleaved high boost ratio three-stage Marx topology DC-DC converter (MTBC). In the proposed circuit, parallel connection is applied at input side in order to reduce conduction loss and copper loss. Meanwhile multi-stage output voltage rating of switching devices. addition, with scheme, maximum current stress a bottom device stage-I reduced equivalent frequency becomes twice frequency. As result, inductance inductor compared that synchronized scheme. volume also...

The paper proposes a high boost ratio of modular Marx topology DC-DC converter (MTBC). In the proposed converter, parallel-connection is applied at input side and multi-stage connection output side. Then, conduction loss voltage rating switching components can be reduced. Therefore, with circuit configuration, efficiency achieved. measured under various voltages. As result, achieved maximum prototype 3-stage MTBC 95% when power 500 W.

This study is to analyze design principles of boost inductor and capacitor used in the 4-level DC-DC converter realize size reduction passive component referring their attributes. The important feature this circuit that most boost-up energy transferred from capacitor-clamped output side which small inductance can be at input side. designed by current ripple. On other hand, capacitance considering voltage stress on semiconductor devices also switching frequency. Besides that, according...

The purpose of this study is to analyze the operation and design symmetrical asymmetrical multilevel inverter structures with reduced number switching devices. In study, term conventional defined as a single cascaded inverter. Specifically, operates in three complete loops only produces 2-level 3-level output voltages. Usually, structure suffers from high total harmonic distortion. Thus, by considering inverter, low distortion reduction voltage stress on devices can be archived. Sinusoidal...

This paper presents the optimization of PFC Cuk converter parameter design for minimization THD and voltage ripple. In this study, is designed to operate in discontinuous conduction mode (DCM) order achieve almost unity power factor. The passive components, i.e., inductor capacitor are based on switching frequency resonant frequency. Nevertheless, ranges duty cycle buck boost operations 0<D<0.5 0.5<D<1, respectively output variation converter. principle parameters...

This paper discusses the design estimation of an inductor in 2-level and 4-level DC-DC boost converter for inductance volume reductions based on maximum product voltage charging time. Two multilevel converters were compared term inductors design, i.e., converter. The finding shows that required are approximately 11.11% 19.25%, respectively to simulation results show current ripple was 0.55 A when 200 μH 1800 used converters, respectively. Thus achieved