Experment and play with ASL9.0 PJ transformer .

Funny how TINY the main DC filter caps are in there....probably good for about 1A of ripple current max each!

Funny how TINY the main DC filter caps are in there

Yes those caps are useless  .   I  was surprise that it works  with a PJ  ASL9.0  and  use it for  light bulb only .    The ac voltage  is unregulated  for inductice load  and  sag  so  is  only use for resistive load .     There is almost  no youtube  on a working  EG8010  inverter board .   All the youtube say the FETs blow up  for unknown  reason  so I  keep the load under  100 watts  .      It is fun to  do experiment  with PJ  inverters  and the  ac voltage  stay  129  constant  with 55 vdc input .   

Funny that the 9kW unit is rated for 96 Volts. The EG 8010 boards range fro 12V at 3kW to 96V at 9kW with the ones in between rated at 24, 36, 48, 60, and 72 Volts.

The EG 8010 boards range fro 12V at 3kW to 96V at 9kW with the ones in between rated at 24, 36, 48, 60, and 72 Volts

I  had my  ASL9.0 Powerjack transformer to work but  made one  modification  to  stop the high voltage spike on auto shut down by the  protection circuit from  killing the FETs  .    To be useful  for load up to 9kw the capacitors need to be  bigger and the  RUI FETs  will probably  works  to  stop the Miller capacitance .   The LF  driver IC need to be better  like on the GS inverter .   The  protection circuit on this Aliexpress  inverter that suppose to protect the FETs  is also the cause of the  high voltage spike on auto shut down  with heavy inductive load that will kill the FETs  every time .    Do manual  shut down and not run inductive load will probably save the FETs .   I  stop  doing  any more with the EG8010  and find the NEW  rev 11.3 control board  works better and use the new rev 11.3 main board  with RUI  FETs from Powerjack in China .   

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You found a guy on Will Prowse's forum that built a functional inverter from one of these EG main boards? I'll bet it's rare. 

You found a guy on Will Prowse's forum that built a functional inverter from one of these EG main boards? I'll bet it's rare. 

A  9kw  EG 8010 base inverter is I think  the  max for DIY .    Any higher load  will  cost a lot  to  find  FETs that will not blow up  by  Miller capacitance .   The need to  find  a protection  circuit   to protect the FETs  from high voltage spike  running inductive  load  will cost a lot  in research .   When the  FETs blow up at over  10kw the  cost of  replacing the FETs  and mainboard  and control board and LF  driver  like the  15kw  20kw  25kw  30kw  Powerjack  is too  much  for me  to  do any testing of PJ inverter .  Every  used parts from Sean  and ebay parts  must be bench tested  before  repairing  15kw to 30kw  PJ inverter .   Just one bad FETs  will  destroy all the other parts that was good  but now need to replace everything .    People  who has  working EG8010 inverter  do not talk  very much  .   That guy  with  the  9kw  do not  tell  how he do it .  

I was hoping to pick up a used PJ inverter from Sean, but have only seen one functional one offered for sale, and it was priced higher than my new split phase PJ LFPSW 8000.

The thing I notice as significant on those boards is the "maximum continuous current" of 190A.

A single good TO-247 FET can handle that much continuous.  And they've got 6 per quadrant (=24 total).  Something's wrong with this picture when the "maximum current" per FET is literally 32A!

At the very least they should be able to do what a TO-220 FET can do (generally ~100A each) which would be 600A.  If they can't, there's drive issues.

I was hoping to pick up a used PJ inverter from Sean, but have only seen one functional one offered for sale, and it was priced higher than my new split phase PJ LFPSW 8000. 

This is a  good  24 vdc  5000 watts  inverter  for 349 dollars  but  a new  8000 watt  AMG  also  349 dollars  and free  shipping .     I   can  repair most  PJ  inverter with the  new  rev 11.3 control board  with a NEW  complete  main board  rev 11.3  with  matching  ribbon cable  and  special order  300 dollar from China  and free shipping  .    

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So, parts are available for a PJ model that shipped with a rev 11.3 control board?  How many caps does the replacement main board have?

So, parts are available for a PJ model that shipped with a rev 11.3 control board?  How many caps does the replacement main board have?

All  PJ inverter  AMG  12000 watts or less   with a rev 11.3  system  will only need a rev 11.3 control board  with LF driver and FETs  and the  rev 11.3 main board  do not  need replacing .    Most  PJ  15kw to 30 kw  will  need  rev 11.3 control board with AC output board  and  LF driver and a  new complete rev 11.3  main board  with  ribbon cable if all the FETs  blow up .   IF  your PJ inverter is rev 9.0  or rev 10.3 or rev 11.0 or rev 11.1  then  a NEW rev 11.3 complete main board with matching ribbon cable  and  a new rev 11.3 control board with LF driver  will  repair  older inverter .    The replacement  rev 11.3  tiny main board has room for 4  capacitors .  This is the  main board use in the PJ 20kw  with  modify copper  trace and modify ribbon cable  that only match the rev 11.3  control board .   Rev  11.3 parts are available from  the Powerjack  web site  only in  China by email to Jack .   I  can get you  replacement parts IF  Jack do not answer .   

Thank you for that info. I just discovered the Ebay drpowertank store, where PJ sells returns.

Thank you for that info. I just discovered the Ebay drpowertank store, where PJ sells returns.

See his review is 100 percent positive .    Do not post  negative review on ebay or he may  block you  or  send a picture of your inverter in a evelope and you will  get a  full refund from paypal  and not  sell you any more parts or inverter .    I  bench test all  mosboard  and LF  driver  before  do repair  .    

I hadn't considered that many of the PJ returns could be only pictures of inverters.