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Forum Index : Solar : Grid connected inverter off grid
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Madness Guru  Joined: 08/10/2011 Location: AustraliaPosts: 2498 |
This is what I have. The link you included has a very basic iron by the look of it, the SMB hot air rework station is great if you are doing a lot of surface mount stuff but chances are it would collect dust and not much more. Tinker the link I posted is just flux not solder paste. There are only 10 types of people in the world: those who understand binary, and those who don't. |
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oztules Guru Joined: 26/07/2007 Location: AustraliaPosts: 1686 |
I use the same as Mad, and replacement irons are only 5-9 dollars too. ..........oztules Village idiot...or... just another hack out of his depth |
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| Boppa Guru Joined: 08/11/2016 Location: AustraliaPosts: 814 |
make me 3! great little iron and parts widely available on ebay or alibaba from my ebay purchase list 936 ESD Brand Huako SOLDERING REWORK STATION IRON SOLDER WELDING TOOL Quality BG ( 162545657374 ) Add note ITEM PRICE: AU $23.39 |
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Revlac Guru Joined: 31/12/2016 Location: AustraliaPosts: 1024 |
I have a duratech Ts-1610 10W from jaycar on special, should work for the little 8010 chip Wish i had that other one, instead i have 5 different size irons. I had a 60w weller and it blew up last month, so it was handy to something spare sitting around. Some photo's with a usb microscope.   handy for finding suspect SMD joints and a shot resistors, There were 2 of them like this IGBT Gate drive resistors. Could not see them with a magnifying glass Cheers Aaron Cheers Aaron Off The Grid |
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Tinker Guru Joined: 07/11/2007 Location: AustraliaPosts: 1904 |
Well, mine arrived yesterday (cost only 15 dollars from aliexpress) and by today I had assembled the parts on the board. It worked first try and I must say I'm mightily impressed with this little digital waveform monitor. It displays a pretty clear picture too of my inverter waveform, certainly sharper than that shown on the old CRO. I will have to try to take a picture of that little screen next time I'm monitoring something interesting. So, thanks for mentioning that kit warpspeed, it's about the best documented kit I ever saw coming out of China. And, as you say, a real bargain. Anybody new to inverter building could do with that gadget as a cheap alternative to a full size CRO. BUT, one *must* also order a 10x oscilloscope probe as the one with the kit is only good for a maximal 50V input. I found the probes I ordered from ebay were excellent, those I bought from Altronics previously were much more expensive and did not last very long, they had a silly stamped metal probe hook which fell apart. The ebay ones have a wire hook which is actually better, IMO, to hook around component legs. Klaus |
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| Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498 |
I got one and assembled it last week, the 10X probe is a must. There are only 10 types of people in the world: those who understand binary, and those who don't. |
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renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678 |
I got one of those cro assembled kits (CBF doing it myself) With the 10x probe The 240v sine doesn't fit on the screen, is there some setting I'm not adjusting right? Cheers Caveman Mark Off grid eastern Melb |
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| Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498 |
Use a small transformer 240 volt down to 12 or similar. When you build your inverter you can connect it to the secondary of the transformer on the control board. I drilled a few holes there and made loops to hook the CRO onto. There are only 10 types of people in the world: those who understand binary, and those who don't. |
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| Tinker Guru Joined: 07/11/2007 Location: AustraliaPosts: 1904 |
The switches on the right side: Set SEN1 to 1V Set SEN2 to x5 This should give you 5V/division with a x1 probe. With a x10 probe that goes up to 50V/ division. This should fit the 240V AC wave on your screen. You did set it to AC at the CPL switch? What I also made is a little plastic box with a short 240V lead & plug coming out. On the other side is a BNC socket. Inside is a 10:1 resistor divider between those two. Use the bigger 1W resistors if you make one, as the smaller resistors are not rated for a high voltage. This little gadget lets me plug in the probe directly in the inverter's GPO without messing with life wires. It also gives me another 10:1 reduction in addition to the oscilloscope 10:1 probe. With this I can select a good screen fit wave form by also using the SEN2 switch. I do hope I have not confused you  .Klaus |
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| Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406 |
Here's mine.  What it looks like on a real oscilloscope with just a 100:1 probe poked into a power point and the ground coming through the earthing of the oscilloscope frame. There are 81 steps peak to peak, and this is the direct unfiltered output from the inverter.  I can run the house either off the inverter, or off any of the three phases.  Cheers, Tony. |
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| Boppa Guru Joined: 08/11/2016 Location: AustraliaPosts: 814 |
Does the screen itself have a part number? I was wondering if you could swap it out to a bigger screen (3" or 4") which would pretty much seem to put it up alongside the basic $200 commercial ones (non storage) The adds arent quite clear enough to see what it is, and just say 2.4" TFT lcd Would make it a little more bench friendly |
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| Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406 |
I have been thinking pretty much the same thing Boppa. The Chinese are probably trying to keep the cost right down, which they have certainly done. I hope they realize that there would also be a fairly strong demand if it were to have a slightly more expensive "big brother". Larger displays are certainly available and being mass produced, as now used widely in mobile phones and GPS systems. Anyhow, for us crazies with our home brew inverters, this little guy is certainly more than sufficient for eyeballing a simple sine wave. I just had a look into my spare unassembled kit of parts, the display comes on its own plug in small circuit board which says on it: 2.4" TFT LCD PN 109-13700-00A1 No brand or manufacturer. Cheers, Tony. |
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| Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498 |
If you want a bigger screen you may be better off spending a bit more on one of these Blue Tooth CRO I have not had any experience with them but you could use a phone or tablet and have a much larger screen. There are only 10 types of people in the world: those who understand binary, and those who don't. |
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| Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406 |
There are plenty of USB virtual oscilloscopes around, some very cheap, others of fairly high capability. But that ties up a large power hungry PC or laptop. I would be looking for something that can work all by itself and can be used as a permanently installed front panel display. Cheers, Tony. |
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| Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498 |
I was referring to the comment about something more bench friendly. There are only 10 types of people in the world: those who understand binary, and those who don't. |
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| Boppa Guru Joined: 08/11/2016 Location: AustraliaPosts: 814 |
I was just thinking about whether its little screen could be swapped out for something a little larger, as the bigger screens are quite cheap, although that bluetooth one looks interesting, I got a couple of old tablets lying around (7 to 10") that could be left as a permanent screen for it looking to replace my old mid 70's era cro, its screen had dimmed over the years to where it basically has to be in the dark to be seen, and replacement tubes for it dont seem to be available anymore- besides it bandwidth is pathetic by modern standards (1mhz) |
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| Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406 |
Boppa, I Googled the part number 109-13700-00A1 and that finally led me to a company called Display Tech. http://www.displaytech-us.com/tft-lcd-displays They have a 2.4 inch that is 240 x 320 resolution which is probably what we have now. Then there is a 3.5 inch with the same 240 x 320 resolution which may possibly use the exact same driver chip and may be a straight plug in. I really do not know. The very much larger displays all have higher resolutions and would probably not be directly software or hardware compatible. Cheers, Tony. |
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| renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678 |
Thanks guys I worked it out. Looks like the 2800w giandel PS inverter isn't so pure. Would using this on household stuff root them?  Cheers Caveman Mark Off grid eastern Melb |
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| Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498 |
My old Trace inverter looked like that, never caused any problem. I would be careful with the ride on dishwasher though. There are only 10 types of people in the world: those who understand binary, and those who don't. |
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| renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678 |
I must be dumb, I don't get it. Cheers Caveman Mark Off grid eastern Melb |
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