RoadTest Poll: Do You Have Access to 210 VAC 3-Phase or 300VDC to Roadtest New Eval Board?

I have been contacted by a supplier who would like to sponsor a roadtest on a new quasi-resonant AC/DC Converter with a Built-in SiC MOSFET Isolation Fly-back Converter.

Its input voltage is much higher than what we normally see for products I roadtest.

This image communicates my point of concern in holding this roadtest:

Poll Question: Do You Have Access to 210 VAC 3-Phase or 300VDC?

Sincerely,

Randall Scasny

RoadTest Program Manager

Top Comments

rscasny over 2 years ago in reply to rsc

Yes, Rohm is the sponsor. I don't have the documentation in front of me, but I think it's similar to the product you included.
Randall
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geralds over 2 years ago

Hi,
nominal I have 3phase 230V_AC +-10% / 50Hz. / 400V_AC
Here is the user guide / schematics about the ROHM BD7682FJ-LB-EVK 402:
https://fscdn.rohm.com/en/products/databook/applinote/ic/power/acdc_converter/bd7682fj-evk-lb-402_ug-e.pdf
https://www.rohm.com/products/power-management/ac-dc-converters-ics/ac-dc-controllers-quasi-resonant/bd7682fj-lb-product…
It is a "normal" fly-back converter, just with a 3ph rectifier. - "Normal" - feature: It works in quasi resonant method and it use a ROHM silicon carbit MOSFET as driver.

Best regards
Gerald
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navadeepganeshu over 2 years ago

I have home wiring with 230V AC/3-PH and also used for water pump, but not the 300V DC(may need an additional rectifier system for it). I don't think someone would have 300V DC access unless in a power electronics lab or a super serious hardware garage at home. Anyways, I am out of high voltage RoadTest.
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rsc over 2 years ago

Kinda looks like this board with some components changed to surface mount.
ROHM BD7682FJ-LB-EVK
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neuromodulator over 2 years ago

Why not just build a voltage multiplier? (or just rectifier if you have access to 220 VAC)
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kmikemoo over 2 years ago

Oh, yeah! This is right up my alley! More power. Whoot! 208v, 240v & 480v. 50w output. I could rig something up.
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Fred27 over 2 years ago

I'd have access to 3-phase at work but I don't think I'd be allowed to connect a road test product up to it. At home (in the UK) it's 240V single phase.
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dougw over 2 years ago

Households around here generally have 240 VAC split-phase, so most home outlets have 120 VAC, but big appliances use the full 240 VAC. But it is not 3 phase.
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