Author Topic: My 12kW powerjack build - Ozinverter Inspiration!  (Read 24279 times)

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Offline noneyabussiness

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Offline influence

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Re: My 12kW powerjack build - Ozinverter Inspiration!
« Reply #76 on: October 24, 2018, 05:57:30 pm »
Its on sale now so I reckon you could do worse for $92 delivered...

Offline influence

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Re: My 12kW powerjack build - Ozinverter Inspiration!
« Reply #77 on: October 24, 2018, 06:09:01 pm »

Interested in your findings on the newer style.

.......oztules

Thanks oz. The explanation works for me and is now driving me to move to the EG design.

I have had some issues develop with the new PJ. After about 3 days the power started to blip (brown out) every 18-20 mins.

Turns out they run a beefy 12V fan off the pj board and the load is pulling the 12V and 5V rails to almost 0 instantaneously. This results in the "talking inverter"
to say "70% load remind"....

So to fix this, I cut out the 12V fan and fitted a 230V fan with a 45C thermostat on the transformer.

The Other two fans are 48V and run off a JUC-31F 45C thermostat fitted to one of the slow switch heatsinks on the mos board.


Offline influence

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Re: My 12kW powerjack build - Ozinverter Inspiration!
« Reply #78 on: October 24, 2018, 06:35:01 pm »
Here is a video I uploaded of the fault.

12V fan dips board voltage causing brownout

Another issue. MOS Board flicker

Offline oztules

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Re: My 12kW powerjack build - Ozinverter Inspiration!
« Reply #79 on: October 25, 2018, 01:34:39 am »
Not keen on the flicker at all...... looks like a fundamental problem in there somewhere on the 48v supply rails.... no idea how they have done it, as I don't know that style at all.


...............oztules
Flinders Island...... Australia

Offline influence

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Re: My 12kW powerjack build - Ozinverter Inspiration!
« Reply #80 on: November 01, 2018, 01:24:56 am »
After bypassing the 12V fan the new PJ seems stable. The flickers are gone.

Still....too right oztules. I want to move to EG8010 boards.....