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InPhase Senior Member Joined: 15/12/2020 Location: United StatesPosts: 178
Posted: 11:15pm 07 Jan 2021
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I have some IR2104 gate drivers that are similar in spec to the IR2110 except they are single PWM input instead of dual input. Can they be substituted if one of the signals is inverted? If I split the signal through an inverting Schmitt trigger, it seems like it would work, but is it more nuanced than that?
InPhase Senior Member Joined: 15/12/2020 Location: United StatesPosts: 178
Posted: 11:55pm 07 Jan 2021
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Upon further inventory, I have some IRFB7545PBF FETS on hand and can get more at about 67 cents per. They are rated at 60 volts and 95 A, 4.9 mOhm. Also, I have a quantity of IRF3205, 55 V, 110 A, 8 mOhm. Are either of these acceptable for a standard Nanoverter?
Revlac Guru Joined: 31/12/2016 Location: AustraliaPosts: 1024
Posted: 10:49am 09 Jan 2021
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Those IRF3205 mosfets are fairly common in 24V inverters, cheap easy to get fets for testing a build, is ok as long as they are similar to what will be running in the final version, if there is a need to compare heat and power consumption on a first build.Cheers Aaron Off The Grid
BenandAmber Guru Joined: 16/02/2019 Location: United StatesPosts: 961
Posted: 05:35pm 09 Jan 2021
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where are you in the world inphase i have a new never programed nano control board i am not using probly some extra 2110 also i can look and send you some things if you would likebe warned i am good parrot but Dumber than a box of rocks
InPhase Senior Member Joined: 15/12/2020 Location: United StatesPosts: 178
Posted: 12:33am 10 Jan 2021
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I'm in a little place called Alabama, off the beaten path. I'd like to get my hands on whatever extra you have. Let's talk. Edited 2021-01-10 11:51 by InPhase
poida Guru Joined: 02/02/2017 Location: AustraliaPosts: 1418
Posted: 07:05am 10 Jan 2021
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The IR2104 is not pin compatible with IR2184 as used in the nanoverter control board.
IR2184 has 1 = IN 2 = SD (shutdown, 0V = active) 3 = COM 4 = LO
the IR2104 has 1 = Vcc 2 = IN 3 = SD 4 = COM
The IR2104 is a nice looking 1/2 bridge driver, ready to drive a totem pole type power board (Madness's board for instance) but the pins are not going to work in the nanoverter. Edited 2021-01-10 17:05 by poidawronger than a phone book full of wrong phone numbers
BenandAmber Guru Joined: 16/02/2019 Location: United StatesPosts: 961
Posted: 11:41am 11 Jan 2021
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i will pm you with a # to text me at pics of the nano boards i put together are on here back shedbe warned i am good parrot but Dumber than a box of rocks
BenandAmber Guru Joined: 16/02/2019 Location: United StatesPosts: 961
Posted: 11:57am 11 Jan 2021
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i sent you a pm if you dont get it let me know or pm me i will send stuff asap when i get your text
many helped me on here told me help others so that is what i try to do
poida i will send him one of the boards you sent me it has the min parts already solderd on
i ordered 40 hy5608 putting 4 in little china board its still doing great! thanks poida i got my dad a bigger one and got it back Edited 2021-01-11 22:07 by BenandAmberbe warned i am good parrot but Dumber than a box of rocks
InPhase Senior Member Joined: 15/12/2020 Location: United StatesPosts: 178
Posted: 12:24pm 11 Jan 2021
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Thanks. I have been trying to read as much as I can here to answer all my questions because I know they have probably already been answered and people get tired of repeating the same stuff over and over. But it is difficult because it is spread out over time and different threads. Sometimes I don't know what questions to ask. I play a lot by ear and learn by blowing stuff up, but I'd like to avoid that for this project.
Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.
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