dickson Posted October 9, 2022 Share Posted October 9, 2022 This is a EG 8010 from DIY Solar Forum . The first picture is my EG8010 . I do not know why his FETs do not blow up . Warpspeed EG 8010 inverter also do not blow up FETS ? Quote Link to comment Share on other sites More sharing options...
AquaticsLive Posted October 9, 2022 Share Posted October 9, 2022 Neat any chance you can point of the basics on the board, I think I guessed them. Since you have one figure you have the general sections figured out. Are those daughter boards easy to get? Guessing the it uses the same generic ones others use, but not sure so wanted to ask. Nice learning project. Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 9, 2022 Share Posted October 9, 2022 It all comes down to MOSFET drive and protection. Sometimes adding a good dose of being "so bad that it actually works" helps quite a bit. (It's amazing how much of a "Whack-A-Mole" things become when you try to improve a design with numerous design flaws!) If the FET drive isn't strong enough to firmly switch the FETs, you'll get a lot more heat off the FETs--but if that's not a problem, you might be pretty well set! Switching the FETs cleanly results in almost no FET heat even at full load--but a plethora of other entertaining situations have to be taken care of to prevent failure! Worth noting that you're going to be awfully hard pressed to find a PJ transformer that will do 9kw continuously, 24/7... Quote Link to comment Share on other sites More sharing options...
dickson Posted October 9, 2022 Author Share Posted October 9, 2022 Are those daughter boards easy to get? Guessing the it uses the same generic ones others use, but not sure so wanted to ask The daughter board is the EG 8010 with the red light and cost about 13 dollars . The company is SUNYIMA that make the most reliable EG 8010 inverter on Aliexpress . EG 8010 inverter has the main board with heat sink and capacitors and mosfets that replace the PJ mainboard . The daughter board EG 8010 mounted vertical is like the LF driver of the PJ inverter . The rest of the circuit board control output ac voltage and overload current and dc overvoltage of battery and dc undervoltage of battery and auto shutdown if overtemperature . The ASL9.0 PJ transformer is what I connect to the EG 8010 from SUNYIMA . For 200 dollars include the inverter board and wires and instruction and diagram . Most PJ 48v inverter transformer is 36vac primary so order the 60v dc model according to SUNYIMA . I only run my EG 8010 to 100 watts and stop . I like to know how he get 9 kw as people with working EG 8010 inverter do not talk . The oz inverter forum say the EG 8010 op amp 339 which shut down the inverter to protect the inverter will blow up the FETs cause by the voltage spike back emf during shut down . I diable the op amp 339 on my EG 8010 and now no voltage spike during shut down but have only over temperature protection . I do not think any PJ inverter can do 9kw with the rev 11.3 control board as the red light alarm will shut it down . Quote Link to comment Share on other sites More sharing options...
AquaticsLive Posted October 10, 2022 Share Posted October 10, 2022 On 10/9/2022 at 1:17 PM, dickson said: The daughter board is the EG 8010 with the red light and cost about 13 dollars Thanks, I may grab one. It will be interesting to use to learn more without being stressed I am going to burn up something that I like. Sounds like its more of an experimental type kit item. Well I may wait a bit to see what stuff Sean sells for other fun projects. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 10, 2022 Author Share Posted October 10, 2022 It will be interesting to use to learn more without being stressed I am going to burn up something that I like. Sounds like its more of an experimental type kit item. Well I may wait a bit to see what stuff Sean sells for other fun projects. Ali express sell the EG 8010 alone and inverter board with EG 8010 and mosfets ready for any powerjack transformer . For a 12vdc inverter the transformer has a 8 vac primary . For a 24vdc DIY inverter then a transformer has 16vac primary and a 48vdc inverter the transformer primary is 28vc that powerjack do not make . my ASL9,0 transformer has 36vac primary then my inverter is a 60vdc system . The output ac voltage is 60 hz single phase 120 ac or 240vac only and no split phase . Quote Link to comment Share on other sites More sharing options...
RobertM Posted October 11, 2022 Share Posted October 11, 2022 1 hour ago, dickson said: It will be interesting to use to learn more without being stressed I am going to burn up something that I like. Sounds like its more of an experimental type kit item. Well I may wait a bit to see what stuff Sean sells for other fun projects. Ali express sell the EG 8010 alone and inverter board with EG 8010 and mosfets ready for any powerjack transformer . For a 12vdc inverter the transformer has a 8 vac primary . For a 24vdc DIY inverter then a transformer has 16vac primary and a 48vdc inverter the transformer primary is 28vc that powerjack do not make . my ASL9,0 transformer has 36vac primary then my inverter is a 60vdc system . The output ac voltage is 60 hz single phase 120 ac or 240vac only and no split phase . In the photo of your EG 8010 board there is a copper 40A power connector to the pcb board. It looks like fits into a round terminal hole. I need something like that for my supercapacitor board. What is it called? Quote Link to comment Share on other sites More sharing options...
dickson Posted October 11, 2022 Author Share Posted October 11, 2022 In the photo of your EG 8010 board there is a copper 40A power connector to the pcb board. It looks like fits into a round terminal hole Ring terminal connector included with inverter board . Ebay sell all sizes of ring terminals . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 11, 2022 Share Posted October 11, 2022 4 hours ago, dickson said: For a 12vdc inverter the transformer has a 8 vac primary . For a 24vdc DIY inverter then a transformer has 16vac primary and a 48vdc inverter the transformer primary is 28vc that powerjack do not make . my ASL9,0 transformer has 36vac primary then my inverter is a 60vdc system . Umm...your numbers aren't scaling correct. If 48vDC = 28vAC primary, that means that the following have to be true: 60vDC -> 35vAC primary 48vDC -> 28vAC primary 24vDC -> 14vAC primary 12vDC -> 7vAC primary I believe the EG8010 cannot go past 100% "throttle" (i.e. it is not able to distort the sine wave), thus necessitating the considerably lower transformer voltage spec for head room. 4 hours ago, dickson said: The output ac voltage is 60 hz single phase 120 ac or 240vac only and no split phase . Of course you can do split phase with an EG8010 board.......there's no magic going on here. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 11, 2022 Author Share Posted October 11, 2022 Umm...your numbers aren't scaling correct. If 48vDC = 28vAC primary, that means I know the Ali express number for transformer primary ac do not seem right for 48vdc battery . The EG 8010 inverter board seem to be all single phase on Ali express . The EG 8010 will need to be modify to be usefull . The OZ inverter use a EG 8010 with a lot of modification to run 6 kw . Running 9kw seem impossible but the DIYer never show detail of modification . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 11, 2022 Share Posted October 11, 2022 9 hours ago, dickson said: I know the Ali express number for transformer primary ac do not seem right for 48vdc battery . It probably IS right, as like I said above, I do not think the EG8010 is able to flatten out the sine wave (">100% throttle"). As a result, under load, the output voltage will fall if the tranny spec is too high. 9 hours ago, dickson said: The EG 8010 inverter board seem to be all single phase on Ali express . Does not make a hill of beans' worth of difference. If you have a split-phase transformer, it'll work just the same. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 11, 2022 Author Share Posted October 11, 2022 As a result, under load, the output voltage will fall if the tranny spec is too high. The output voltage of the ASL9.0 with the EG 8010 board the max is 189 vac so I set it at 130vac to run a light bulb . The neutral can be use to make split phase but no purpose to make 65 vac . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 11, 2022 Share Posted October 11, 2022 16 minutes ago, dickson said: As a result, under load, the output voltage will fall if the tranny spec is too high. The output voltage of the ASL9.0 with the EG 8010 board the max is 189 vac so I set it at 130vac to run a light bulb . The neutral can be use to make split phase but no purpose to make 65 vac . If the ASL9 is 36v -> 230v (typical PJ spec), the ratio is (230 / 36) = 6.388. Couple that with a 48v battery input = max non-saturated output of (48 / 1.414) = 33.9vAC into your transformer. Thusly 33.9vAC * 6.388 (ratio) = 216.58v max expected output with zero losses. ...assuming all my guesses are correct, then the EG8010 can't even reach 100% sine "throttle." But I'm making a lot of assumptions here. You can of course remove a few turns of the primary winding on your ASL9. Depending on the winding spec, each "turn" removed will drop from 1.0-1.5v of the primary voltage. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 11, 2022 Author Share Posted October 11, 2022 assuming all my guesses are correct, then the EG8010 can't even reach 100% sine "throttle. You are not guessing as that is what the EG 8010 is doing so it is a expensive light bulb circuit . IT is very difficult to find a useful DIY for the EG 8010 on youtube . The oz inverter has bigger cap and better mosfets and transformer spec is not Powerjack spec and protection circuit is still a problem . Quote Link to comment Share on other sites More sharing options...
NotMario Posted October 11, 2022 Share Posted October 11, 2022 Split phase is single phase. Just two different pairs of potentials, sharing the center. So long as your tranny can multiply the voltage to 240, and has a center tap (or 2 equal secondaries), you can use it for North American split phase. If the EG8010 has a software limit of 189, just make it regulate against a single 120v leg. Like a lot of powerjacks. Second leg go directly to output terminal. Not sure the implications of regulating off only one leg. Probably wont be as sensitive to voltage drop on the second leg... I'm sure Sid knows the ugly details on this. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 11, 2022 Author Share Posted October 11, 2022 If the EG8010 has a software limit of 189 The EG 8010 inverter board I bought is 50 dolars on Ali express . My Powerjack transformer primary do not match so is limit to 189 vac . Ali express do sell a matching transformer for EG 8010 and cost 600 dollars . Sean has a lot of old Powerjack but PJ in China no longer make repair parts . I find that using a EG 8010 inverter board will not make old Powerjack useful . IT will be very difficult to repair old PJ inverter . Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted October 11, 2022 Share Posted October 11, 2022 4 hours ago, NotMario said: If the EG8010 has a software limit of 189 Doubt it. The voltage feedback input requires a voltage divider--so in theory, it could be used to regulate almost any output voltage. The issue is if the SPWM output cannot flat-top/distort the AC wave if there's insufficient headroom. On top of that, it might not even take the sine to full 100% max PWM throttle anyway--further reducing headroom. Quote Link to comment Share on other sites More sharing options...
dickson Posted October 11, 2022 Author Share Posted October 11, 2022 The voltage feedback input requires a voltage divider--so in theory, it could be used to regulate almost any output voltage. The inverter board has output voltage adjustment . IF output ac is adjusted too high it shut down with red light blinking . IF output ac is adjusted too low it shut down also so now at 130 vac it works to run a light bulb . The battery is 55 vdc input . The inverter board has over voltage and under voltage protection adjustment . IF the adjustment from the factory is out of range then the EG 8010 will not start and may blow the FETs if it shutdown automatically under load . Quote Link to comment Share on other sites More sharing options...
RobertM Posted October 11, 2022 Share Posted October 11, 2022 3 hours ago, dickson said: If the EG8010 has a software limit of 189 The EG 8010 inverter board I bought is 50 dolars on Ali express . My Powerjack transformer primary do not match so is limit to 189 vac . Ali express do sell a matching transformer for EG 8010 and cost 600 dollars . Sean has a lot of old Powerjack but PJ in China no longer make repair parts . I find that using a EG 8010 inverter board will not make old Powerjack useful . IT will be very difficult to repair old PJ inverter . This EG8010 discussion is interesting, but perhaps you can buy a parts inverter from Sean and repair your old PJ? I would like one of the working 24V PJ's, but all depends on $. Lots of bills come due for me right now. 1 Quote Link to comment Share on other sites More sharing options...
NotMario Posted October 12, 2022 Share Posted October 12, 2022 3 hours ago, Sid Genetry Solar said: Doubt it. The voltage feedback input requires a voltage divider--so in theory, it could be used to regulate almost any output voltage. The issue is if the SPWM output cannot flat-top/distort the AC wave if there's insufficient headroom. On top of that, it might not even take the sine to full 100% max PWM throttle anyway--further reducing headroom. I figured that was the case. So he just needs to adjust his tranny to get enough voltage. Unwinding the primary a few turns would clearly do it, but with less copper, what side effect is produced? 2 hours ago, RobertM said: This EG8010 discussion is interesting, but perhaps you can buy a parts inverter from Sean and repair your old PJ? I would like one of the working 24V PJ's, but all depends on $. Lots of bills come due for me right now. I haven't heard anything more about this. Sean is nigh impossible to reach sometimes. 😕 Quote Link to comment Share on other sites More sharing options...
RobertM Posted October 12, 2022 Share Posted October 12, 2022 1 hour ago, NotMario said: I figured that was the case. So he just needs to adjust his tranny to get enough voltage. Unwinding the primary a few turns would clearly do it, but with less copper, what side effect is produced? I haven't heard anything more about this. Sean is nigh impossible to reach sometimes. 😕 At some point, this week, there will be a link on genetrysolar.com with info on the available PJ inverters that he's tested. Quote Link to comment Share on other sites More sharing options...
Ben Posted January 26 Share Posted January 26 the egs002 little board is looking for around 3 volts from the voltage divider on the big board so as sid said it can be made to reg almost any voltage with in the specs of the parts like caps fet ...... if you can do so in a safe way "know what you are doing" you can plug one 120 volt leg of your tranny into a wall outlet after plugging in see what the low side voltage is if it is 36 volts you will need to unwind a few turns then plug it in again and check the low side again if still over 28 volts you repeat untill you get 28 volts if under 28 you add turns to low side check it each time do this until you get 28 volts from every thing i know any esg002 inverter over 2k needs to have totem poll drivers you will also need a realy good choke my buddy has been using one of my home made 10k egs002 inverters for a long time now every day off grid they can be good inverters but what is the use now that GS is making much better inverters? 1 Quote Link to comment Share on other sites More sharing options...
dickson Posted January 26 Author Share Posted January 26 from every thing i know any esg002 inverter over 2k needs to have totem poll drivers you will also need a realy good choke my buddy has been using one of my home made 10k egs002 inverters for a long time now every day off grid YES need totem poll LF driver and a big choke . 10 kw seem to be the limit for DIY inverter and Powerjack inverter . I stop using the EG 8010 with the ASL 9.0 transformer and is using the rev 11.3 PJ control board now with the transformer primary to 32vac . Quote Link to comment Share on other sites More sharing options...
Ben Posted January 30 Share Posted January 30 i never liked the power jack control boards one bank of fets gets hotter than the other 3 i had a buddy that reprogram a pj control board for me and it ran great he may have done other stuff to it also not sure but it truly ran great after he done what ever he done the egs002 can be made into a good inverter but it is plain jane and i have never ran one at over 4or5k for hours at a time i have ran one with big load for short times here and there i would not trust them for every day use of over 6k i have had no prob but people way smarter than me have said over and over 6or7k is tops for the egs002 PJ and esg002 suck when compared to even just the GS wifi board ITS DAY AND NIGHT!! GS is no more in cost when all is said and done either Have you seen all the things a GS wifi board can do? Its not just a screen with wifi its all the brains and drives the fets at 8amps! This makes sure they turn all the way on fast so less heat and losses It was a crazy killer deal when they was selling the wifi by its self for 3 or 350 bucks To anyone who had a junk pj could buy the GS wifi install it and turn a junk into a very nice inverter Of course you have to no how or know some one that can install it for you The pj fet board is not the prob with pj inverters or at lest the pj i had They work great with GS wifi i have had one since before the first wifi was sold ITS still running strong! The wifi does not make the tranny bigger But you turn a junk pj into a very nice inverter with tons and tons of feachers like wifi that can do what ever wattage the pj tanny is capable of I quit messing with esg002 and pj when i got a GS All in cost is about the same from home made esg002 or buying a GS it is a no brainer lol If i had a large pj inverter i would be trying to get my hands on a GS wifi board to put in it That is my two cents on it all! Quote Link to comment Share on other sites More sharing options...
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