Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Janis M. Niedra"'
Publikováno v:
IECEC '02. 2002 37th Intersociety Energy Conversion Engineering Conference, 2002..
This work presents the report on what the effect tape thickness has on the DC and AC coercivity, specific core loss, and dynamic B-H loop. The material used in this investigation is known in the trade as Supermalloy, which is a nickel-iron alloy whos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2fde7da3837661f72537ca9a23bbef6
https://doi.org/10.1109/iecec.2002.1392031
https://doi.org/10.1109/iecec.2002.1392031
Publikováno v:
Proceedings of the 25th Intersociety Energy Conversion Engineering Conference.
Limited experimental data exists for the specific core loss and dynamic B-H loops for soft magnetic materials for the combined conditions of high frequency and high temperature. This experimental study investigates the specific core loss and dynamic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9683aec4bab7a24abdbcc3ee0ddfa20
https://doi.org/10.1109/iecec.1990.716924
https://doi.org/10.1109/iecec.1990.716924
Autor:
Janis M. Niedra, Gene E. Schwarze
Publikováno v:
3rd International Energy Conversion Engineering Conference.
Test results are presented for normally-off 4H-SiC Static Induction Transistors (SITs) intended for power switching and are among the first normally-off such devices realized in SiC. At zero gate bias, the gate p-n junction depletion layers extend fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bab4441234595501d7af11b3c62705ce
https://doi.org/10.2514/6.2005-5718
https://doi.org/10.2514/6.2005-5718
Publikováno v:
2nd International Energy Conversion Engineering Conference.
The core loss, that is, the power loss, of a soft ferromagnetic material is a function of the flux density, frequency, temperature, excitation type (voltage or current), excitation waveform (sine, square, etc.) and lamination or tape thickness. In pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fa3cde502e316abd5bbb7df7b01ac8b
https://doi.org/10.2514/6.2004-5749
https://doi.org/10.2514/6.2004-5749
Autor:
Janis M. Niedra, Gene E. Schwarze
Publikováno v:
1st International Energy Conversion Engineering Conference (IECEC).
The standard method of magnetic core loss measurement was implemented on a high frequency digitizing oscilloscope in order to explore the limits to accuracy when characterizing high Q cores at frequencies up to 1 MHz. This method computes core loss f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb32b74cf453706bc5ee2350955729ae
https://doi.org/10.2514/6.2003-5972
https://doi.org/10.2514/6.2003-5972
Autor:
Janis M. Niedra, Scott S. Gerber
Publikováno v:
IECEC 96. Proceedings of the 31st Intersociety Energy Conversion Engineering Conference.
The L-C resonant decay technique for measuring circuit Q or losses is improved by eliminating the switch from the inductor-capacitor loop. A MOSFET switch is used instead to momentarily connect the resonant circuit to an exciting voltage source, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc748c45e04866a8e0a5c70185062b48
https://doi.org/10.1109/iecec.1996.552955
https://doi.org/10.1109/iecec.1996.552955
Autor:
Janis M. Niedra, Gustave C. Fralick
Publikováno v:
37th Joint Propulsion Conference and Exhibit.
Experiments were conducted to test the claims by Rex L. Schlicher, et al., (Patent 5,142,86 1) that a certain antenna geometry produces thrust greatly exceeding radiation reaction, when driven by repetitive, fast rise, and relatively slower decay cur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e99ff760d2ee23b199e623339fa2ec63
https://doi.org/10.2514/6.2001-3657
https://doi.org/10.2514/6.2001-3657
Autor:
Gene E. Schwarze, Janis M. Niedra
Publikováno v:
SAE Technical Paper Series.
100 kHz magnetization properties of sample transverse magnetically annealed, cobalt-based amorphous and iron-based nanocrystalline tape wound magnetic cores are presented over the temperature range of -150 C to 150 C, at selected values of B(sub peak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ebf5fab160bc1a10f07be5734dccea2
https://doi.org/10.4271/1999-01-2541
https://doi.org/10.4271/1999-01-2541
Autor:
Janis M. Niedra, Gene E. Schwarze
Publikováno v:
SAE Technical Paper Series.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3af195cf214398303cf1d57893dbe093
https://doi.org/10.4271/1999-01-2542
https://doi.org/10.4271/1999-01-2542
Publikováno v:
AIP Conference Proceedings.
The effects of nuclear radiation and high temperature environments must be fully known and understood for the electronic components and materials used in both the Power Conditioning and Control subsystem and the reactor Instrumentation and Control su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::765dcccdb9897763e2a4bb718df27bf6
https://doi.org/10.1063/1.43205
https://doi.org/10.1063/1.43205