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US Replacement for UMCCC 400 C Core
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LaserSteve:
I need to duplicate a high voltage power supply in an academic paper. Rectified and filtered 220 line is stepped up by a ~ 1:140 transformer based on four UMCCC 400 "C" cores. In the schematic its driven by a FET Half Bridge with a one and a half turn copper tape primary and 140 turns of silicone wire for the primary. A series resistor of a few Ohms is frequency range is 2 to 40 KHz adjusted for peak power transfer to a mostly capacitive load in short pulses.
Application is driving an Atmospheric Pressure Dielectric Barrier Discharge in a research lab at work. I need something similar to UMCCC 400 readily available in the US.
DBDs in this case are a Townsend discharge for ignition that transition to arrays of parallel streamers. The load is a large diameter quartz plasma tube filled with methane, a trace of argon or helium to aid in ignition, and a catalyst on ceramic spheres to aid in the formation of a chemical compound.. The pulses are capacitive coupled to the load via a simple inductive match. Downstream is a GC/MS looking for the desired compound to see how well the developmental catalyst works. The quartz tube forms the capacitor, and a rod in the center of the catalyst is the inner electrode. So all the pulse energy passes through the quartz or fused silica.
I'm well familiar with the needed safety precautions. I've worked with plasmas for years. This is usual procedure in a university lab, "Here, Build This!", usually an poorly documented circuit, which almost always leads to a development project where I build "That Expensive and New Design That Actually Works"
My take from the graphs is 100 to 1000 watts of average power circulating in the system.
Normally I would research this myself but Mom (87) is in the hospital, she cannot speak for herself and I'm the only child. Suggestions please????
Data Sheet for original cores:
http://3.imimg.com/data3/NU/KA/MY-8750762/amorphous-c-cores.pdf
Thanks,
Steve
Wolfram:
The Hitachi AMCC 400 core size seems to be the same size, from the datasheets I was able to find. These cores are available in 2605SA1 material from Dexter Magnetics in the US: https://shop.dextermag.com/product-p/amcc-400.htm
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