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High Power-Density SiC Converter
Materials Science Forum, 2008A compact SiC converter having power densities about 9 W/cm3 is designed and fabricated. It is confirmed that the converter operates in a thermally permissive range. The power loss of the module of the converter measured under motor operations is less than 50% of the similar-rating Si module loss. The shrink of the effective volume of DC-link capacitor
Shin Ichi Kinouchi +8 more
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High power density thin film resistors
1975 EIC 12th Electrical/Electronics Insulation Conference, 1975Untrimmed Ni-Cr resistors on glazed alumina substrates, hermetically sealed in a dry nitrogen atmosphere, survive and remain stable when subjected to power densities greater 2000 W/in2. Large (>7 × 10−4in 2 ) resistors with standard top-hat trimming fail at less than 1000 W/in2 due to hot spots, however, a change in trim line configuration results in ...
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High Power Density Design Methodology
2007 Power Conversion Conference - Nagoya, 2007Power Electronics Research Center (PERC) proposes a novel circuit parameter design concept called "Power Converter Design Platform" for realizing high output power density (OPD) converters. The platform concept enables the exact power loss design by taking the effect of correlations among converter parameters into consideration under high speed ...
Y. Hayashi +3 more
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High-power high-density-gas lasers
Russian Physics Journal, 1999This paper presents a review of the work devoted to the creation and investigation of high-power pulsed uv, ir, and visible lasers pumped with an electron beam, a self-sustained discharge with uv preionization, and a discharge controlled and initiated by an electron beam.
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Nanoscale, 2023
Micro-supercapacitors with switchable high energy density and high power density based on the Faraday reaction and electrical double layer principle.
Kuangbing Wang +8 more
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Micro-supercapacitors with switchable high energy density and high power density based on the Faraday reaction and electrical double layer principle.
Kuangbing Wang +8 more
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High-power-density 4H-SiC RF MOSFETs
IEEE Electron Device Letters, 2006We have made a 4H-SiC RF power MOSFETs with cutoff frequency up to 12 GHz, delivering RF power of 1.9 W/mm at 3 GHz. The transistors withstand 200 V drain voltage, are normally-off, and show no gate lag, which is often encountered in SiC MESFETs. The measured devices have a single drain finger and a double gate finger and a total gate width of 0.8 mm ...
G. Gudjónsson +9 more
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High Power Density Spray Cooling
1989Abstract : The research reported describes experimental and theoretical investigations of high power density evaporative spray cooling. Preliminary experiments demonstrating heat fluxes greater than 1,000 W/sq cm were conducted. Extensive laser phase Doppler measurements for spray characteristics were also taken.
Louis C. Chow +2 more
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Power MOSFETs Paralleling Operation for High Power High Density Converters
Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting, 2006In high power high density converters, the power MOSFETs can be used in parallel as the main switch to meet the current rating requirement, increase the switching frequency, and reduce the power loss. This paper investigates the possible benefits and problems associated with the power MOSFETs paralleling operation for higher power high frequency ...
Hongfang Wang, Fred Wang
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High Power/Torque-Density Devices
2020Mechanical power transmission and handling devices are evaluated according to their power density, or else their torque density if it is not the power that is the issue of primary concern. The combination of high power or torque density with good energy efficiency may collectively be termed high-performance density.
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Development on high-power and high power density capacitor charging power supply
2014 17th International Symposium on Electromagnetic Launch Technology, 2014This paper discussed the high-power and the miniaturization technology of capacitor charging power supply. The design and implementation of parallel operating high power density CCPS prototype with "peak current shifting control" was described. The single CCPS prototype output power is 35kW and the whole output power of parallel operating CCPS is 70kW.
Gao Yinghui +6 more
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