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In this paper, the generalized two-box cascaded (GTBC) nonlinear behavioral model is employed to model the inverse Class-F Doherty power amplifier (PA). The experimental results show that the GTBC model can provide more accuracy modeling for the inverse Class-F Doherty PA than some state-of-the-art models.
This paper presents an analysis and system-level design of an incremental sigma-delta converter (IΣΔ ADC) in order to explore a possible solution to low power multi-channel applications. The problem of using classic ΣΔ ADCs for applications which require time multiplexed signals will be discussed. The IΣΔ ADCs are characterized for resetting all memory elements present in ΣΔ modulator core and digital...
Multiphase PMSMs are widely used in fault-tolerant control applications. And one of the important fault-tolerant control problems is fault diagnosis. In most existing references, the fault diagnosis always focuses on three-phase PMSM. In this paper, a novel model and a fault diagnosis method of inter-turn short circuit (ITSC) fault for five-phase PMSM based on particle swarm optimization (PSO) are...
Pumps are widely used in various industries and they are mostly driven by induction motors. For purposes such as system control, monitoring and model-based fault detection, a dynamic model of the motor-pump behavior is necessary. We used a nonlinear model to describe the behavior of an electro pump. The main problem to model the pump are the unknown parameters of hydraulic part of the pump. In this...
With the recent advances in memristors as a potential building block for future hardware, it becomes an important and timely topic to study on memristor modelling. Memristor models are important for designers to exhibit memristor behavior since memristor is not yet available in market. An ideal memristor behavior has been remodel with Generalized Regression Neural Network (GRNN) and presented in this...
The paper presents the comparison and the experimental validation of three ultracapacitor (UC) circuit models of the Maxwell Boostcap® module. The more advanced layout takes into account the nonlinear dependence on the terminal voltage, the internal losses and the charge redistribution effects by suitable RC branches. By means of different types of charge tests, the more convenient circuit layout...
This paper presents a two diode model applied for modeling thin photovoltaic module. The case treated concerns a micromorphous (amorphous and microrcrytalline) PV module. The I-V and P-V characteristics were simulated using the parameters provided by the manufacturer in the data-sheet at standard conditions. To validate the model a comparison between the simulation results and the experimental data...
The objective of this article is to compare two topologies of converters Boost DC-DC, classical and interlaced, in terms of the values of the amplitudes of currents their output voltage and undulations, size of the components of the converters and delivered power. Our work presents a technical approach for the improvement and the optimization of the adaptation's performances of power of a photovoltaic...
In this paper, Si Schottky-barrier diodes (SBD's) fabricated in CMOS process are shown to be suitable for THz imaging applications. We firstly present a physical-based equivalent circuit model for Si Schottky diodes fabricated by standard 130nm CMOS technology in which I-V, C-V and RF performance are covered. Secondly, the developed transmission Line (TL) model are employed to optimize T-type matching...
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...
A new international standard proposal (IEC 62433-2 Edition 2.0) is in progress. The main purpose of the standard is to provide an Integrated Circuit Emission Model - Conducted Emission (ICEM-CE) along with a data exchange format. It is known that the existing ICEM-CE information is closely linked to the supplier of the model or simulation software used to generate the model information, rendering...
This paper introduces a new Direct Power Injection (DPI) set-up used to characterize the conducted immunity of integrated circuits (IC) with differential inputs. It allows injecting common-mode, differential-mode signals or any combination of both. For a given kind of injection, it is necessary to calculate power and phase-shift at generators. To do so, an analytic model is developed based on S-parameters...
EMI becomes unavoidable owing to the high frequency of power electronics. In order to predict and reduce the influence of EMI, a precise high frequency model of power MOSFET needs to be established to forecast EMI in the circuit. First, two common used power MOSFET models, the sub-circuit model and the lumped-charge model were described. After comparing the advantages and disadvantages of these two...
Electric vehicle battery modeling and state-of-charge prediction has gained a lot of importance with the growing range anxiety among electric vehicle users. The future of battery implementation in electric vehicles might be in their customized design according to specific journey conditions. As such, this paper highlights the application of a novel concept — Journey Mapping for a Ford Focus Electric...
This paper proposes a method for modeling dynamics of solid batteries, such as valve-regulated-lead-acid batteries and lithium-ion batteries. A model is presented, which is composed of static nonlinearity V-I curves and a variable-parameter equivalent circuit model. A procedure of battery test and data processing is presented to obtain model parameters based on physical-chemical mechanism and V-I...
This paper presents a methodology to obtain an optimized model of a Radial Piezoelectric Transformer with primary and secondary at same piezoelectric ceramic surface. Three-dimensional simulation by Finite Element Method is utilized as analysis tool. Methodology aim is obtaining an improved accuracy model for low cost Piezoelectric Transformer samples. Finite Element analysis was done in order to...
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...
This paper presents the Modeling, design and implementation of single phase inverters for operation in island mode within a microgrid. Photovoltaic inverter model is obtained in small signal, and its calculation will allow to obtain the transfer functions of different control loops. In island mode operation, it is important that several inverters can be connected in parallel, having for these different...
In this paper, an RLGC model of a silicone rubber socket is proposed and compared with simulation results. Due to the reusability of the silicone rubber socket, it is suitable for a reliable test. In addition, its electrical performance is compared with that of conventional solder balls. The performance of the two are compared using measurements in both frequency and time domains. Their eye diagrams...
The paper studied the optimal approach to the implementation of models of quantum calculators, perform differentiation characteristics of quantum models of calculators to the appropriate functional groups included in the models. Detected characteristics of the models of quantum calculators and expected these characteristics software functionality of the model. Mathematical models and their advantages...
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