Author Topic: testing the egs002 inverter board  (Read 147591 times)

0 Members and 4 Guests are viewing this topic.

Offline frwainscott

  • Newbie
  • *
  • Posts: 21
  • Karma: +0/-0
Re: testing the egs002 inverter board
« Reply #150 on: April 06, 2016, 09:04:02 pm »
 Antman ,

Here is A site with your basic configuration for fet/heat-sink. Might get an idea or two from it. As it is using the 8010.   

http://www.lz2gl.com/power-inverter-3kw/

Frank ....

Offline frwainscott

  • Newbie
  • *
  • Posts: 21
  • Karma: +0/-0
Re: testing the egs002 inverter board
« Reply #151 on: April 06, 2016, 10:09:01 pm »
Does anyone know what the current sense coil is ?  eg : rate - 150A/0.05A or a part no.

 Thanks .... Frank .... :-)

Offline Antman

  • Full Member
  • ***
  • Posts: 51
  • Karma: +0/-0
Re: testing the egs002 inverter board
« Reply #152 on: April 07, 2016, 10:07:09 pm »
Hey Frank

Thanks for the link. I haven't seen that site yet. It's a nice example since they have included all power filtering. I'm guessing the designer was an engineer looking at the complexity of everything.

No idea what the current sense coil is.

My boards have been made and shipped from China. They should arrive on Monday hopefully. I cant wait to pot them together  :)

Offline oztules

  • Moderator
  • Hero Member
  • *****
  • Posts: 1177
  • Karma: +105/-8
  • Village idiot
Flinders Island...... Australia

Offline frwainscott

  • Newbie
  • *
  • Posts: 21
  • Karma: +0/-0
Re: testing the egs002 inverter board
« Reply #154 on: April 08, 2016, 08:18:28 pm »
 Oz... Thanks for the reply, It looks like that will do the job, I did'nt expect it to be 2000/1 seems high.
Do you or anyone know whether it decreases the amperage on a linear scale,somewhat gradual or a rapid drop of amperage?

 I'm thinking a person could possibly use this approach to limit the KW output to keep them from destroying themselves and/or other equipment on a dead short/extreme load.
 Think ill try 1k/1 since im modifying to 24volt to get started so I wont break the bank.  :-)

 If you have any suggestions for batteries and solar cells it would be greatly appreciated..... :-) My plan is to get up and going with 24 volt system, Then upgrade to 48 volt as I can. Im using less than 2k except for hot water and washing and drying clothes and welder.

Oh if you look at the schematic i just posted for Antman, Reply #150 that is the one you were supposed to get to check out. It is an lf not a hf inverter. and they are using the same components you are.   A little more in-depth circuitry, I think. 

Thanks.....  Frank

Offline lighthunter

  • Sr. Member
  • ****
  • Posts: 323
  • Karma: +13/-0
Health Warning: May contain traces of nut!
LH

Offline frwainscott

  • Newbie
  • *
  • Posts: 21
  • Karma: +0/-0
Re: testing the egs002 inverter board
« Reply #156 on: April 09, 2016, 01:56:00 am »
Oz,
 
If you take a short video of the oscilloscope,then play it ,pause it on a steady frame,(or pause and advance frames) then do a screen shot you will have a picture without multiple waves or distortion.

Seems like a lot of trouble for a picture huh? But it does work! And all you need is a smart phone!

Do a google search for your phone screen shot if you don't know the sequence.....

Frank....  :-)

Offline oztules

  • Moderator
  • Hero Member
  • *****
  • Posts: 1177
  • Karma: +105/-8
  • Village idiot
Re: testing the egs002 inverter board
« Reply #157 on: April 10, 2016, 01:01:04 am »
You can buy those other inverters here:
http://www.yoycart.com/Product/528093395667/
....oztules
Flinders Island...... Australia

Offline Dr_Zogg

  • Full Member
  • ***
  • Posts: 109
  • Karma: +0/-0
Re: testing the egs002 inverter board
« Reply #158 on: April 10, 2016, 01:53:02 am »
do you think they would be much good for anything?
Of all the things I've lost, I miss my mind the most

Offline oztules

  • Moderator
  • Hero Member
  • *****
  • Posts: 1177
  • Karma: +105/-8
  • Village idiot
Re: testing the egs002 inverter board
« Reply #159 on: April 10, 2016, 02:17:37 am »
If you look at the first tests I did using only 2 fets/leg... then yes.
I suspect they would be all you need for most circumstances from my limited experience thus far.... ie normal off grid house usage where you only use say 3-500 watts with 5-6kw surges

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

Offline frackers

  • Full Member
  • ***
  • Posts: 239
  • Karma: +9/-0
  • If it moves - computerise it!
Re: testing the egs002 inverter board
« Reply #160 on: April 10, 2016, 04:06:30 am »
I wonder what the flying lead onto the egs002 board is for?
Robin Down Under (or are you Up Over!)

Offline oztules

  • Moderator
  • Hero Member
  • *****
  • Posts: 1177
  • Karma: +105/-8
  • Village idiot
Re: testing the egs002 inverter board
« Reply #161 on: April 10, 2016, 05:28:19 am »
I think they are doing the same sort of thing as me, and intercepting the IFB  line... could be using it for the IFB, or maybe also the inhibit for their housekeeping chip.

They have a quad comparator there for possibly their own temp, current,battery volt- overv, underv... and I assume they are using this as the entry point to tell the chip to go or whoa..... most probably for their rendition of low battery volts... this is only a guess remember..... not fact.

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

Offline Antman

  • Full Member
  • ***
  • Posts: 51
  • Karma: +0/-0


Offline Dr_Zogg

  • Full Member
  • ***
  • Posts: 109
  • Karma: +0/-0
Re: testing the egs002 inverter board
« Reply #164 on: April 13, 2016, 08:40:25 am »
howdey,
just wondering about the big black thing on the right hand side,
on the overlay it looks like 2x2uf capacitors?
would it be possible to get an ebay link or similar so that i can find it, i'm ordering the bits and pieces to build a couple

Cheers,
            Sam
Of all the things I've lost, I miss my mind the most