Pharmacokinetic–pharmacodynamic modelling and simulation using the electrical circuit simulation program spice2

The methods, models and techniques — presented in the companion paper — have been used as a basis for the evaluation of popular general-purpose electrical circuit simulation programs, in particular, their applicability in the analysis of power electronic circuits. As a result of this critical evaluation, the general requirements for the simulation program adequate for converter systems studies and design have been formulated. On this basis the algorithm of TCAD — a general-purpose converter system simulation program — has been elaborated. In presentation of the TCAD program three parties have been distinguished: the first one emphasizes the applications of modern simulation methods for converter systems, the second describes briefly the features of the main modules of the TCAD package, and the third presents some simulation examples of practical converter systems. Three simulation examples are presented: two resonant converters and an induction motor drive fed by a full-bridge voltage source PWM inverter at normal and fault operation conditions. A good agreement between simulation and experimental results has proved that this simulation package is a power tool for research, teaching and engineering practice.

Download Full-text

Electrical equivalent circuit for modelling permanent magnet synchronous motors

Journal of Electrical Engineering ◽

10.2478/jee-2021-0024 ◽

2021 ◽

Vol 72 (3) ◽

pp. 176-183

Author(s):

Esra Kandemir Beser

Keyword(s):

Permanent Magnet ◽

Equivalent Circuit ◽

Circuit Simulation ◽

Electrical Circuit ◽

Simulation Program ◽

Mechanical Parameters ◽

Circuit Element ◽

Electrical Equivalent Circuit ◽

Mechanical Part ◽

Simulation Results

Abstract In permanent magnet synchronous motor (PMSM) models, only the stator part is given as an electrical circuit and mechanical equations are used for modelling the mechanical part of the machine. In this study, electrical equivalents of mechanical equations are also obtained and mechanical parameters of a PMSM are expressed as an electrical circuit element. In this way, an exact electrical equivalent circuit is proposed in which both the stator and the mechanical part can be modelled as an electrical circuit for the PMSMs dynamic model. Although PMSM model includes mechanical parameters and variables, the complete model is expressed only in electrical elements and variables. The proposed PMSM circuit was simulated for different load torques in the circuit simulation program. Simulation results show that the proposed circuit operates like a PMSM. Simulation results were verified by another method in the form of solution of the differential equations that constitute the mathematical model of PMSM. Due to the proposed circuit that enables the conversion of mechanical parameters into electrical parameters, PMSM can be modelled and simulated as an electrical circuit with completely electrical elements in a circuit simulation program.

Download Full-text

Digital Linear Control Theory Applied To Automatic Stepsize Control In Electrical Circuit Simulation

Progress in Industrial Mathematics at ECMI 2004 - Mathematics in Industry ◽

10.1007/3-540-28073-1_28 ◽

2006 ◽

pp. 199-203 ◽

Cited By ~ 1

Author(s):

A. Verhoeven ◽

T.G.J. Beelen ◽

M.L.J. Hautus ◽

E.J.W. ter Maten

Keyword(s):

Control Theory ◽

Circuit Simulation ◽

Electrical Circuit ◽

Linear Control ◽

Stepsize Control ◽

Linear Control Theory

Download Full-text

Use of the circuit simulation program SPICE2 for analysis of the metabolism of anticancer drugs

Bulletin of Mathematical Biology ◽

10.1016/s0092-8240(86)90033-9 ◽

1986 ◽

Vol 48 (3-4) ◽

pp. 353-380 ◽

Cited By ~ 1

Author(s):

J WHITE

Keyword(s):

Anticancer Drugs ◽

Circuit Simulation ◽

Simulation Program

Download Full-text

Modelling and Analysis of Energy Harvesting in Internet of Things (IoT): Characterization of a Thermal Energy Harvesting Circuit for IoT based Applications with LTC3108

Energies ◽

10.3390/en12203873 ◽

2019 ◽

Vol 12 (20) ◽

pp. 3873 ◽

Cited By ~ 2

Author(s):

Syeda Adila Afghan ◽

Husi Géza

Keyword(s):

Energy Harvesting ◽

Internet Of Things ◽

Thermal Energy ◽

Integrated Circuit ◽

Circuit Simulation ◽

Extraction Methods ◽

Electrical Circuit ◽

Energy Scavenging ◽

Power Requirement ◽

Resistive Loads

This paper presents a simulation-based study for characterizing and analyzing the performance of a commercially available thermoelectric cooler (TEC) as a generator for harvesting heat energy along with a commercial-off-the-shelf (COTS) power management integrated circuit (PMIC); LTC3108. In this model, the transformation of heat was considered in terms of an electrical circuit simulation perspective, where temperature experienced by TEC on both cold and hot sides was incorporated with voltage supply as Vth and Vtc in the circuit. When it comes to modeling a system in a simulation program with an integrated circuit emphasis (SPICE) like environment, the selection of thermoelectric generator (TEG) and extraction methods are not straightforward as well as the lack of information from manufacturer’s datasheets can limit the grip over the analysis parameters of the module. Therefore, it is mandatory to create a prototype before implementing it over a physical system for energy harvesting circuit (EHC) optimization. The major goal was to establish the basis for devising the thermal energy scavenging based Internet of Things (IoT) system with two configurations of voltage settings for the same TEG model. This study measured the data in terms of current, voltage, series of resistive loads and various temperature gradients for generating the required power. These generated power levels from EHC prototype were able to sustain the available IoT component’s power requirement, hence it could be considered for the implementation of IoT based applications.

Download Full-text