Author Topic: testing the egs002 inverter board  (Read 107809 times)

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Offline Phaedrus

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Re: testing the egs002 inverter board
« Reply #570 on: March 05, 2018, 11:53:49 am »
Hi TinyT,
I recd. my control PCBs. But it does not connectors like J5,J9 etc. as shown in your schematics.
Are those your modifications,or have I made the wrong PCB  :-[

Offline tinyt

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Re: testing the egs002 inverter board
« Reply #571 on: March 05, 2018, 12:14:43 pm »
The schematic I made is based from an oztules gerber files and some 'the backshed' forum notes. Reference designators Rx, Cx, Jx, etc. are created by the schematic software I used. They are not present on the silkscreen gerbers. I think there is a later PCB design by oztules.

I think J9 is the 3 pins pwr on/off. I checked for J5 and I could not find it but I think oztules mentioned that if you want hard reset, connect that end of the 120 ohms resistor to ground, So I just added J5 for that.

Offline oztules

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Re: testing the egs002 inverter board
« Reply #572 on: March 06, 2018, 02:39:20 pm »
gate drive = 5r6 or similar
snubbers = 56r or any where near that ( 47-56 just fine)
103 for the snubber caps. I use 3kv ones.
 there... clarified.


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

Offline Phaedrus

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Re: testing the egs002 inverter board
« Reply #573 on: March 12, 2018, 01:34:44 pm »
One more question Oztule :D...
On the control board,we have 2 switches :
1) After 120E for power reset.
2) One for SPWMEN (pin 6).
After a power reset,should we wait a few seconds and then switch on SPWMEN ?
I have got my new boards assembled and taking all precautions this time  8)
TIA!

Offline Tvixen

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Re: testing the egs002 inverter board
« Reply #574 on: August 03, 2018, 03:31:46 am »
Hi TinyT,
Thanks for posting the schematic.
Any major changes from the one you posted on Reply #506 ?
My inverter works erratically,sometimes it works like a charm and sometimes it blows MOSFETs  :-[.
I am using a DC-DC buck converter for the 15V conversion. Time to build a "pure" Oztules ,I think.

Hi Phaedrus,

Just stumbled over your frustration as I was reading this thread.
I think your problem is the "DC-DC buck converter for the 15V conversion" 
On this board, you should replace the variable resistor with a solid one, as it has a tend to vary in value.
I had a similar problem with this buck converter in another project.

Br Tvixen

Offline Tvixen

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Re: testing the egs002 inverter board
« Reply #575 on: September 10, 2018, 07:53:11 am »
Hi Tinyt

Just a small but important correction.
According the the PCB, you seem to have misplaced the C1+C2 and R5+R6 in your circuit. 

C1 and C2 should point INTO the Drain.  And not to GND.

Br Tvixen.

Offline tinyt

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Re: testing the egs002 inverter board
« Reply #576 on: September 10, 2018, 09:33:18 am »
Hi Tinyt

Just a small but important correction.
According the the PCB, you seem to have misplaced the C1+C2 and R5+R6 in your circuit. 

C1 and C2 should point INTO the Drain.  And not to GND.

Br Tvixen.
Thanks for checking, your are correct. The schematic does not exactly match the PCB.  Series RC C1-R5 and C2-R6 should be flipped for connection match with the PCB. But I think electrically, at the frequencies used, they are equivalent.

Offline Tvixen

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Re: testing the egs002 inverter board
« Reply #577 on: September 11, 2018, 04:14:03 pm »
Well it does matters if you have a RC filter, or a CR filter  ;D

Offline Hugo

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Re: testing the egs002 inverter board
« Reply #578 on: April 02, 2019, 04:40:05 pm »
Hello! Oztules, I'm having trouble printing the layout of the OzInverter's power board. I have never had contact with Gerber files and I do not understand them. Would you or anyone else post the Layer Top Layer, Bottom Layer and Component Mask files to the forum? It would be something like this pdf file I found from the 60Hz version control board.

Thankful,

           Hugo.

Offline frackers

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Re: testing the egs002 inverter board
« Reply #579 on: April 02, 2019, 09:11:11 pm »
Grab a gerber viewer application - there are lots of free and online versions as well as viewers embedded in free PCB design applications like kicad.
Robin Down Under (or are you Up Over!)

Offline Hugo

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Re: testing the egs002 inverter board
« Reply #580 on: April 04, 2019, 11:27:37 am »
Thank you Frackers for the quick response. Yes, I have already downloaded the Altium Designer program but I do not know how to handle this program. Could someone make the file already available in PDF? Because I was beaten and humiliated by the program!

Offline ClockmanFrance

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Re: testing the egs002 inverter board
« Reply #581 on: April 04, 2019, 03:16:39 pm »
This is the OzInverter 50HZ 48vdc to 240vac OzControl PCB.

Please Note, that if this is your first OzInverter then I recommend that the Over Temp ON/Off switch is used.

I have left both options on the PCB.

Please note, the below PDF is a standard A4 sheet of paper.  The PCB is 90mm x 187mm

Offline Hugo

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Re: testing the egs002 inverter board
« Reply #582 on: April 05, 2019, 10:04:23 am »
Hello everyone! ClockmanFrance, Thanks for the reply, but this file you posted, I have it in the pdf version for OZcontrol 60Hz card which is the frequency of the electric grid here in Brazil. Actually I need is the power board pdf! Preferably the last review. I took a beating from the Altium Designer program, so I'm asking someone to give me the pdf file that is friendlier to me. Thank you, Hugo.