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The aim of our investigation is to develop complete electro-mechanical system simulation. The present developed prototype system includes pressure sensors, amplifiers, a controller, servo motors, and a robot-body. Sensor signals such as transduced voltage, servo motor actuation signals such as shaft angle, velocity, and acceleration are modeled in an analytical way. The entire system structure is...
This paper presents a compact electro-mechanical-fluidic system-modeling method for multidomain system simulation based on multidomain physics that considers the total energy conservation condition, in terms of respective potential and flow quantities. Models for electrical, mechanical, and fluidic domains are developed to design the example of a blood pumping system, where the blood flow is driven...
This paper presents compact modeling for multi-domain system-level simulation based on multi-physics that considers the energy conservation condition, in terms of respective potential and flow quantities. Models for both electrical and non-electrical domains are developed to design a flexible blood pumping system where the blood flow is driven by electrically control organic actuators. The electrical...
Modeling of an electrically driven fluid flow system for multi-domain simulation is reported. The electrically driven actuator force is considered by an actuator component model, based on a spring-mass-damper system with force balance formulation. The fluid flow model is developed on the basis of a Kirchhoffian network which is derived from the mass transport equation. The actuator and the fluid models...
A new modeling framework of an electrically driven fluid flow system for mixed-domain circuit simulation is reported. Coupling between electrical and fluidic domains is implemented by developing an organic actuator compact model. The actuator model is based on force balance spring-mass-damper system equation. Fluid compact model is derived from mass transport equation. The actuator and the fluid models...
AC overvoltage emerges on dc buses of a magnetically controlled shunt reactor when a turn-to-turn fault occurs within the control winding (CtrW). Overvoltage protections are thus employed. However, this paper addresses a problem in the application of overvoltage protection against CtrW turn-to-turn faults where such a protective scheme may operate in an unacceptable time delay or even malfunction...
A physical compact charge carrier mobility model for undoped-body organic thin-film transistors (OTFTs) based on an analysis of the bias-dependent Fermi-energy movement in the band gap is reported. Mobility in localized- and extended-energy states predicts the current transport in week- and strong-inversion regimes, respectively. A hopping mobility model as a function of surface potential is developed...
This paper presents the first 150 GHz amplifier in a digital 65 nm CMOS technology. Design techniques to preserve raw transistor gain near fmax include layout optimization, dummy-prefilled microstrip lines (MSL) for design-rule compliance, and matching topologies which minimize passive element losses. To the authors' knowledge, the measured 8.3 dB gain, 6.3 dBm saturated output power (Psat), 1.5 dBm...
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