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Modeling of high-frequency micro-transformers
IEEE Transactions on Magnetics, 2004A dynamic model has been developed to predict the efficiency of a micro-transformer, operating at 5 MHz. The model includes a core hysteresis model, core eddy current model and winding copper loss model. Measurements and finite element analysis were carried out in order to validate the model.
null Ningning Wang +5 more
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High-frequency planar power transformers
IEEE Transactions on Power Electronics, 1992High-frequency transformer design using the transmission line transformer (TLT) is described. Utilizing transmission line circuit theory, the characteristics of the TLT for different turn ratios are given, and its advantages, including its wideband nature, are discussed. TLT prototypes with turn ratios of 2:1, 3:1, and 5:1 were designed and fabricated.
M.A. Morrill, V.A. Caliskan, C.Q. Lee
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High frequency loss evaluation in high frequency multi-winding power transformers
Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95, 1995A high frequency power transformer (HFPT) with twin secondaries is generally analyzed with each primary ampere-turn being canceled by an equal contribution from each of the two secondaries. Such a methodology does not indicate worst case high frequency losses.
R.K. Dhawan, P. Davis, A.W. Lotfi
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High-frequency power transformer modeling
2013The detailed study of high-frequency over- voltages propagating inside the electrical systems of a power plant requires a precise modeling of power transformers at high frequencies. These over- voltages may originate from lightning overvoltage propagating along the transmission line and crossing the step-up transformer, they may originate also for ...
Filipović-Grčić, Božidar +2 more
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An ultimate high frequency transformer
1992. Digests of Intermag. International Magnetics Conference, 1992H. Saotome +3 more
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Learning Spatial-Frequency Transformer for Visual Object Tracking
IEEE Transactions on Circuits and Systems for Video Technology, 2023Chuanming Tang +2 more
exaly
Difficulties in high frequency transformer modelling
2015Traditional transformer models available in EMTPlike software packages are not capable of representing transformer behavior during a transient state, which includes high frequencies, since they usually do not adequately take into account the transformer resonant behavior caused by its highly complicated design.
Jurišić, Bruno +4 more
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High-Frequency Modeling of Power Transformers
2023Behrooz Vahidi, Ramezan Ali Naghizadeh
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Estimating Power Transformer High Frequency Model Parameters Using Frequency Response Analysis
IEEE Transactions on Power Delivery, 2020A Abu-Siada +2 more
exaly