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Old 12-12-2014, 05:42 PM   #1434 (permalink)
cts_casemod
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Quote:
Originally Posted by e*clipse View Post
That's why I really like those SOT-227 modules. They're much smaller than the "bricks" and they still use bolt-on busbars.

Regarding SiC diodes, my old spreadsheets (this was done about 10 years ago) indicate a forward voltage of 0.86V for a 1kW boost converter. I know parts have improved since then, for example I can't wait till this is available:
All-SiC and Si IGBT + SiC Rectifier CoPack from GeneSic Semiconductor

That Infineon IC that I used was truly amazing. It tracked the input current and adjusted the output so that the Power Factor was always near 1. The switching frequency I designed for was 100kHz, and I used a torroidal inductor.
In addition, Infineon also provided some good information for designing boost converters.
http://www.infineon.com/dgdl/Product...12b427caa43ccf
http://powerelectronics.com/site-fil...g/410pet21.pdf
ICE2xXXX ... - Datasheet Search Engine Download

- E*clipse
Thats quite good.
High frequency PFC diodes I had have a drop of at least 1.1V unloaded.

I use this converter in my 1.5KW modules. Current is set via a shunt resistor.

MC34262-D
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e*clipse (12-12-2014)