Results 151 to 160 of about 471 (171)

Force and electrical Thevenin equivalent circuits and simulations for thickness mode piezoelectric transducers

The Journal of the Acoustical Society of America, 1975
A simple model is reported for thickness-mode piezoelectric elements used as ultrasonic transducers in measurement systems. The model represents the excitation system and transducer as a Thevenin mechanical equivalent for the transmitting mode and a Thevenin electrical equivalent for the receiving mode.
Roy W. Martin, Rubens A. Sigelmann
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Calculating short-circuit currents in distribution systems via numerically computed Thevenin equivalents

2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495), 2004
Distribution system circuit topologies, connections, and equipment pose interesting challenges to system analysts. An approach based upon fundamental circuit analysis principles to calculating fault currents of various types is presented. The basic approach consists of obtaining the prefault phase voltages and a phase Thevenin matrix at the fault ...
M. Dilek, R. Broadwater, R. Sequin
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THEVENIN EQUIVALENT CIRCUITS FOR MODELING COMMON-MODE BEHAVIOR IN POWER ELECTRONIC SYSTEMS

2021
The high-frequency switching of transistors in power electronic (PE) converters is known to cause unintended common-mode (CM) current that flows through parasitically-coupled ground paths. One way to model these currents is to utilize time-domain simulations that capture switching dynamics and the corresponding parasitic response.
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Remarks on "Comments on the limitations of the Thevenin and Norton equivalent circuits for a receiving antenna"

IEEE Antennas and Propagation Magazine, 2003
Collin (see IEEE Antennas and Propagation Magazine, no.45, p.119-124, 2003) remarks that Love (see IEEE Antennas and Propagation Magazine, vol.45, no.4, p.98-99, 2003) has misinterpreted his. In the paper under discussion, he did not discuss the efficiency of a receiving antenna or give any comment on the maximum efficiency a parabolic receiving ...
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New method of finding Thevenin equivalent circuits for the transformer and partial–ideal operational amplifier system

International Journal of Electrical Engineering & Education, 2019
This paper proposes a new method of finding the Thevenin equivalent circuits for the transformer and partial–ideal operational amplifier systems that have not been systematically solved by traditional approaches now. This paper also exploits some strong improvements to solve the complicated dependent source circuit and mutual coupling circuit.
Yang-Ching Chou, Chung-Cheng Chen, Yen-Ting Chen   +2 more
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Thevenin equivalent circuit-based time domain simulation for conducted EMI in lossy transmission lines

2002 3rd International Symposium on Electromagnetic Compatibility, 2003
This paper presents a time domain simulation model for conducted electromagnetic interference (EMI) in lossy transmission lines. The lossy lines are divided into a small number of ideal sections for which the Thevenin equivalent circuits substitute, and between these sections the resistances and conductances are connected on behalf of the loss of lines.
null Yu Zhiyong, null Xu Hualong, null Liu Guangbin   +2 more
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On the application of Thevenin and Norton equivalent circuits and signal flow graphs to the small-signal analysis of active circuits

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1996
Small-signal Thevenin and Norton equivalent circuits seen looking into each terminal of the BJT and the FET are described. The application of these circuits to writing by inspection the expressions for gain, input resistance, and output resistance of multistage amplifiers is demonstrated. The application of the circuits to the noise analysis of devices
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Use of Linear Graphs and Thevenin/Norton Equivalent Circuits in the Modeling and Analysis of Electro-Mechanical Systems

International Journal of Mechanical Engineering Education, 2010
This paper presents a unified approach for the modeling and analysis of electro-mechanical systems. First, the need for a unified approach is justified in view of the presence of electro-mechanical dynamic coupling. Next, linear graphs are promoted as a useful tool for unified modeling of multi-domain systems, where the existing analogies across ...
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Modeling of Islanded Microgrids Using Static and Dynamic Equivalent Thevenin Circuits

2018
In this paper, a new modeling method based on the equivalent Thevenin circuit is proposed for inverter-interfaced microgrids. The proposed method approximates the entire network connected to each inverter with an equivalent Thevenin circuit. The equivalent circuit is studied in two forms: static impedance and dynamic second-order RL branch.
Naderi, Mobin, Khayat, Yousef, Shafiee, Qobad, Bevrani, Hassan, Blaabjerg, Frede; id_orcid 0000-0001-8311-7412   +4 more
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Operational Amplifiers and Thevenin Equivalent Circuits

2017
Teri L. Piatt, Kyle E. Laferty
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