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International Symposium on Power Semiconductor Devices and IC's, 2021
A digital gate driver (DGD) is an important technology to reduce both switching loss and voltage and/or current overshoot. In this paper, a 5 V, 300 MSa/s, 6-bit DGD IC, where the gate current is varied in 64 levels for each of 16 3.3-ns time intervals ...
Ryunosuke Katada +8 more
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A digital gate driver (DGD) is an important technology to reduce both switching loss and voltage and/or current overshoot. In this paper, a 5 V, 300 MSa/s, 6-bit DGD IC, where the gate current is varied in 64 levels for each of 16 3.3-ns time intervals ...
Ryunosuke Katada +8 more
semanticscholar +1 more source
Ninth IEEE International Pulsed Power Conference, 1993
Abstract : Our experiments show energy losses between 2 and 10 times that of the resistive time predictions. The experiments used hydrogen, helium, air, nitrogen, SF6, polyethylene, and water for the switching dielectric. Previously underestimated switch losses have caused overpredicting the accelerator outputs.
Martin, T. H. +2 more
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Abstract : Our experiments show energy losses between 2 and 10 times that of the resistive time predictions. The experiments used hydrogen, helium, air, nitrogen, SF6, polyethylene, and water for the switching dielectric. Previously underestimated switch losses have caused overpredicting the accelerator outputs.
Martin, T. H. +2 more
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Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop., 2003
Thyratrons are limited in lifetime and maximum repetition rate. For some applications it is necessary to replace the thyratron by a semiconductor switch. Therefore it is necessary to compress the pulses by nonlinear inductances. In a magnetic pulse compression network three main losses exist.
C. Strowitzki, A. Gortler, M. Baumann
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Thyratrons are limited in lifetime and maximum repetition rate. For some applications it is necessary to replace the thyratron by a semiconductor switch. Therefore it is necessary to compress the pulses by nonlinear inductances. In a magnetic pulse compression network three main losses exist.
C. Strowitzki, A. Gortler, M. Baumann
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Micromachined low-loss microwave switches
Journal of Microelectromechanical Systems, 1999The design and fabrication of a micromechanical capacitive membrane microwave switching device is described. The switching element consists of a thin metallic membrane, which has two states, actuated or unactuated, depending on the applied bias. A microwave signal is switched on and off when the membrane is switched between the two states.
Z.J. Yao +4 more
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Aerodynamic losses in switched reluctancemachines
IEE Proceedings - Electric Power Applications, 2000A computational and experimental study of aerodynamic losses in switched reluctance machines, with particular reference to establishing the influence of various design parameters and the merits of various prediction techniques is reported. The flow of air around switched reluctance rotors has been calculated by a series of two- and three-dimensional ...
S.D. Calverley +2 more
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Loss reduction by network switching
IEEE Transactions on Power Systems, 1988Systematic and fast switching for the purposes of reducing losses in power transmission networks is treated as an optimization problem whereby switching is to be understood in a general and comprehensive way. Injected currents applied to a base network are used to model the switching operation.
R. Bacher, H. Glavitsch
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Modeling of losses in switched reluctance machines
38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003., 2004Switched reluctance motor (SRM) performance prediction requires the modeling of iron losses. The iron loss model in this paper separates the iron losses into two components, eddy-current and hysteresis losses, and models the losses as a function of the derivative of flux density. The model is suitable for the nonsinusoidal flux densities in the SRM and
V. Raulin, A. Radun, I. Husain
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Decrease of power electronic switching losses using variable switching events
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe), 2020The electric range of an electric vehicle depends amongst others on the efficiency of electric components. This paper focuses on the efficiency of the inverter in one-phase operation. A comparison of three different PWM patterns is presented concerning their efforts to minimize the switching losses of the inverter and reducing the distortion of ...
Hannes Ramm +4 more
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Understanding switching losses in SiC MOSFET: Toward lossless switching
2015 IEEE 3rd Workshop on Wide Bandgap Power Devices and Applications (WiPDA), 2015Due to the limitation in circuit measurements using current and voltage probes, the conventional ways of measuring switching losses lack the physical insight of the complicated witching process in power devices such as the SiC power MOSFET. This paper seeks to have a better understanding of the dynamic turn-on and turn-off processes of the SiC power ...
Xuan Li +5 more
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Low loss ferroelectric microwave switch
1962 International Electron Devices Meeting, 1962A low loss ferroelectric microwave switch has been developed recently for operation at L-band frequencies. The switch is constructed in strip transmission line using (Ba-Sr)TiO 3 as the active element. It is capable of switching in less than 0.1 usec and provides isolation in excess of 20 db with an insertion loss of less than 0.7 db over a band of 20 ...
A.L. Stanford, R.T. Arnold
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