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The cell voltage imbalance of series-connected energy storage cells, such as supercapacitors (SCs) and batteries may hurt and even damage the whole energy storage system. Hence, the voltage balancing technology is of great significance to the development of energy storage system. The aim of this paper is to propose a new modular equalizer based on buck/boost converters with snubber capacitors for...
This paper proposes a compact 4-plate capacitive coupler structure for large-air-gap capacitive power transfer (CPT). An LCL-compensated circuit topology is applied at both the primary and secondary sides to resonate with the power transmitting plates. The resonance boosts the voltage on the plates to kV levels to increase the power capacity of the CPT system. On each side, the two plates are aligned...
Accurate large signal analysis and modeling of Power Electronics converters are essential for achieving high performance and reliable designs. Converter topologies with large signal variations are conventionally analyzed using numerical methods, averaged or inaccurate analyses. In this paper, a mathematical theorem based on Laplace transform is developed to derive the steady state response of periodic...
The paper introduces foundations of the "Flexible Routing Method" that belongs to the topologically-geometric type. It develops the idea to divide the routing problem on two separate successive stages: topological and geometrical. At the first stage it was suggested to use a discrete topological model as Delaunay triangulation or/and Voronoi polygons to describe topology. The explicit and...
The execution-simulation gap (ESG) is a fundamental property of public physical unclonable function (PPUF), which exploits the time gap between direct IC execution and computer simulation. ESG needs to consider both advanced computing scheme, including parallel and approximate computing scheme, and IC physical realization. In this paper, we propose a novel PPUF design, whose execution is equivalent...
In this paper single operational transresistance amplifier based lossless grounded negative inductance simulator topology is presented. The proposed circuit employs only single OTRA and four passive elements. The circuit is studied for nonideality and high frequency self compensation is achieved. Theoretical propositions are verified by simulation.
A new non-linear voltage gain buck converter belonging to fifth-order family is proposed in this paper. As this converter has non-linear gain characteristic, it gives more bucking than the traditional buck converter. A time-domain analysis is formulated to predict the converter steady-state performance. Also, the equations for designing the energy storage elements are established. Salient performance...
This paper presents design and analysis of dual input SEPIC converter. Time sharing switching scheme is used to generate the gating pulses for switching devices. This scheme is more flexible as it provides wide range and choice of input sources. Instead of using two single input converters for different power supplies, the use of a dual input SEPIC reduces the cost and losses. The results of output...
Field effect transistor (FET) or bipolar junction transistor (BJT) based circuits, involving emitter/source degeneration by any general impedance are widely known for their positive effects on circuit performance. The circuit's behavior like input-output impedances, trans-admittance, voltage and power gains of such topologies are well known. In this paper, we propose to analyze the topology by looking...
In recent time GaN FETs have started its way on the electronics market. As the parameters of this type of semiconductors is superior to the classic Si and SiC elements the use of classic topologies like boost converter got the opportunity to set higher frequencies, better efficiency and therefore better power density. Better efficiency gives an advance in pay-off time as there is smaller amount of...
This paper discusses four compensation topologies of magnetic coupling system suitable for use in contactless power transfer (CPT) applications. The design and modeling process of CPT system is described in detail. Resonance between the source and load is achieved with compensation capacitors connected at the terminals of the coils. Electric equivalent circuit models are used to describe each circuit...
Delay estimation is considered as one of the critical issues in the development of any Very Large Scale Integration (VLSI) design algorithms. It is also known as one of the factors to analyze in the design of high performance integrated circuit. Neither of these is usually applied to observe the performance of various VLSI topologies. High performance integrated circuits often use adders to achieve...
Partially shaded problem in multi-string PV panels is a major challenge because it reduces the value of generated power from PV panel. In this paper, a new cascaded high step-up DC-DC-AC converter based on SEPIC converter is proposed for partially shaded multi-string PV panels. To solve the challenge of partially shaded in PV system, a SEPIC dc-dc converter is connected for each string and the duty...
Three-phase/ three-level nonregenerative VIENNA rectifiers have achieved rapid development recently in tele-communication devices, power supplies, and UPS systems. The VIENNA rectifier operates in continuous conduction mode (CCM) at full load, while in discontinuous conduction mode (DCM) with light load or reduced input inductance. This paper presents a dynamic model for the VIENNA rectifier operating...
This paper presents important characteristics on the study of universal filters topologies. The integration of series and shunt active power filter was proposed by [1], where the two converter shared the same dc-link bus voltage. By a steady state analysis it was noted that there is a significant difference between two voltage converters. The voltage capability of shunt convert is bigger than series...
In this study, a novel multi-level type bidirectional half-bridge inverter for wireless power transfer applications is presented. The proposed converter provides high power application by splitting the voltage in each switch. The converter topology is explored to reveal the maximum efficiency points with a variable phase-shift function between the dual active level (DAL) switches. The analysis of...
In this paper, a new single switch bridgeless AC/DC power factor correction PFC converter topology to achieve high PF and low THD is proposed. The proposed converter is based on the single ended primary inductance converter SEPIC topology. The SEPIC converters can operating from an input voltage that is greater or less than the output voltage. The proposed PFC uses only one active switch to PFC process...
This paper further demonstrates the versatility of the Tapped Inductor Switcher (TIS) analysis method proposed in a previous paper. The aim is to extend the application of this modeling technique to converters containing multiple inductive elements. As a study case, a tapped inductor SEPIC derived dc/dc converter is considered. The study from this paper suggests that the SEPIC can be modeled by two...
This work presents the modeling of the control loop for the Five Level (5L) T-Type Neutral-Point Clamped (NPC) converter, for grid-tie photovoltaic application. The control system includes the converter output current control loop and the differential voltage control loop of the input voltage. The results are evaluated by means of a 3kW prototype.
This paper presents the modeling and control of a high voltage gain dc-dc converter based on the three-state switching cell (3SSC). Initially, the equivalent circuit must be obtained so that a mathematical modeling tool can be applied, which in this case is the PWM (Pulse Width Modulation) switch. From the small-signal analysis of the converter, it is possible to obtain the most relevant transfer...
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