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In this paper, a boost ac/dc converter is controlled by an on-time control IC FAN7530 to operate in critical conduction mode (CRM) and exhibits the capability of high power factor correction (PFC). In order to simplify the steady-state analysis, the operating principle is analyzed by a functional-block-diagram (FBD) method. The component considerations are also presented herein. Additionally, the...
Li-ion batteries are a very attractive energy storage technology due to their high energy density and their capability for high charge and discharge rates. This makes them very suitable for power applications such as Electric Vehicles (EV), Hybrid Electric Vehicles (HEV) or electric grid oriented applications. However, in order to take advantage of Li-ion batteries' good properties, an accurate battery...
A significant amount of research has been published in recent years on Polarization - Depolarization Currents (PDC), although little has been published on simulating these processes in the laboratory. Over the past few years an ongoing project related to simple simulation models had been pursued and published. In this paper we will provide summary results on non-linear simulation performed on the...
Modeling the discharge characteristics of every cell in a battery pack individually is the basic issue for battery management systems (BMS). This paper proposes a simple method for modeling the constant current discharge curves with POD. With this method, precise model of a cell can be built with typical discharge curves, and characteristics of other cells can be estimated. This method can also be...
This paper focuses on the design of EMI filter for a power converter used Silicon Carbide power devices (SiC-JFET and SiC diode). The DC-DC converter used in this study is a buck converter which has operating frequency of 100 kHz and the turn-on and turn-off times of the JFET are equal to ten nanoseconds. It is well known that the switching times have a direct link to the spectrum of the EMI sources...
Redox-based resistive switching devices are a potential candidate for future non-volatile memory. One type of these devices is the electrochemical metallization memory cell (ECM). To enable circuit design using resistive switching devices predictive simulation models are required. This work presents a physical model for the resistive switching in ECM cells that is based on the electrochemical driven...
This paper proposes a theoretical study supporting the use of simplified single-diode photovoltaic (PV) models to accurately reproduce the behaviour of PV generators. In particular, a newly defined parameter is introduced, which allows to classify PV modules according to the possibility to neglect either the series- or the shunt resistance in the circuit model. On such a basis, equations allowing...
In this paper, an experimental stage for IPMC sensors will be designed, and characteristics of the sensor are analyzed based on experimental data. From analyses, it is known that IPMC sensors are inherent with both hysteresis and dynamic features. The existence of hysteresis and dynamics will degrade the performance of the sensor. Hence, it should design a compensator to eliminate the effect of hysteresis...
e-CPI has emerged as a new risk in modern chip design as silicon dies become increasingly thinner and packages become increasingly more complex. e-CPI is different from traditional mechanical reliability related chip-package interaction, as it focuses on package stress impact on electrical circuit performance. A complete e-CPI modeling flow has been demonstrated. Both package FEA models and silicon...
This work proposes a model to estimate the electromagnetic (EM) power coupling between an EM probe and an embedded cryptosystem. All the assumptions and the approximations of this approach are introduced and discussed to extract a general model to be applied to a multi-layer circuit. The power coupled to each circuit layer can thus be estimated by using this model. In particular, an example of power...
The penetration of renewable energy technologies into energy markets is on the increase due to significant drops in their capital cost, increase in their efficiency and improvement in storage system and power electronic interface. Most universities around the globe offer, nowadays, renewable energy courses within the electrical and mechanical engineering curricula to support the increasing demand...
We present in this paper a software simulation system with interactive graphic interface for solar systems designed with Matlab-Simulink. In the first part, the system is able to model the five different types of cells / solar modules appear by the characteristics, current-voltage (I-V) and power-voltage (P-V) under different external conditions such as solar irradiance and temperature ambient and...
Ultrasound systems are widely used. Modeling and simulation of ultrasonic transducers systems is a challenging task due to the presence of multi-physics effects such as electrical and mechanical effects and their interaction. Different approaches were proposed to predict the piezoelectric transducer behavior such as a numerical resolution of piezoelectric equations. Another approach is based on the...
A systematic method to design a balun for impedance transformation in millimeter-wave (mm-wave) integrated circuit design is presented in this paper. The balun was designed by stacking two top metals and transmission lines, and fabricated by 90-nm RF CMOS processing. In addition, a lumped model of the balun including skin effect and substrate effect has been established. The model shows good agreement...
This paper proposes a different method of modeling Photovoltaic (PV) System in uniform irradiance conditions. It provides a simple and accurate method of modeling PV system using a single diode model by considering series and shunt resistance. This model computes five parameters and is having better accuracy than the existing models in literature. The accuracy of the proposed modeling technique is...
A battery simulator is needed to test battery management systems (BMS) for electric vehicles. A new battery simulator called a Hardware in Loop (HIL)-battery simulator is build. In order to facilitate the electric battery model part of the HIL-battery simulator, a simple and accurate equivalent circuit model for LiFePO4 batteries is defined. For estimating and identifying the battery parameters from...
As a key issue in EVs (Electric Vehicles) development, Li-ion battery's thermal safety is focused on in which the thermal abuse model is an important tool. This paper has established a 3-D electro-thermal model taking side reaction into account, in order to study on MGL100Ah lithium manganite battery's safety issue. This paper firstly states the mechanism of heat generation, types of thermal model,...
This paper describes the design of a battery pack simulator (BPS). The BPS is an electronic device that emulates all cell voltages of a battery pack in order to test battery management systems (BMS). Cell characteristics and environmental conditions of individual cells, such as capacity or ambient temperature can be adjusted in order to examine the unbalance in a battery pack on the functioning of...
This paper proposes novel circuit model to simulate photovoltaic (PV) modules at different temperatures. The basic component of the new model is the N-channel enhancement mode MOSFET. The new approach simplifies the I-V output equation of PV module by avoiding the exponential term in the well-known diode models. In addition, it provides the ability to represent the whole PV module by only one MOSFET...
This paper presents the modeling of an AFPM motor with cogging torque ripple. The model block has been constructed and verified in PSIM. This is a combination of circuit component based and equation based model which facilitates the coupling of the model inputs to the PWM inverter and the load torque input for integrated performance evaluation of the motor drives. The model has also been verified...
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