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7/7/2025, 2:58:13 AM
7/3/2025, 9:09:15 PM
Trannies
7/1/2025, 10:07:46 AM
>>2927943
There are 2 parts to this.
First is the forward converter part of the circuit which will turn the 98VDC to 300VDC.
Second, for making the 300VDC or so into 240VAC, I will use an H-bridge stage with an appropriate LC filter to make it into a nice sine like wave. I will use those 600V 1uF "induction stovetop" caps. If possible, make the H-bridge SPWM to make it even more sine like.
300V to 340V is just the peak voltage in 210VAC to 240VAC (these are RMS voltages). No plan for 3 phase output, doesn't make sense for 800W of power honestly.
>>2927958
I don't have a plan for a battery, just a large capacitor bank, a few mF to maintain the voltage rail in case of heavy transients. If I did use a battery, I would have to put the two 48V panels in parallel to match with a 48V li-ion battery pack (12S or 13S). That will make the entire system be limited to 48V. Transformer will need to be 48V to 300V, a worse ratio, primary winding will need to be thicker to carry more current, switching FET will need to be even lower Rds to prevent higher losses (or even worse, I may have to put multiple FETs in parallel). Everything just falls apart.
I do agree, I should probably look into filling the cracks in the panels though, no harm in making the "free" panels last longer. Probably potting resin or something similar? I have no idea.
I am planning on making this project MCU based so MPPT will be a software feature. Anyway, I'll be using good old TL431 + 817 optocoupler to get feedback from the secondary side.
I would use DC but its not adventurous enough for me.
I am really excited. Its been quite some time since I did some serious power electronics. I feel manly already. I finally get to wind a big boy transformer
There are 2 parts to this.
First is the forward converter part of the circuit which will turn the 98VDC to 300VDC.
Second, for making the 300VDC or so into 240VAC, I will use an H-bridge stage with an appropriate LC filter to make it into a nice sine like wave. I will use those 600V 1uF "induction stovetop" caps. If possible, make the H-bridge SPWM to make it even more sine like.
300V to 340V is just the peak voltage in 210VAC to 240VAC (these are RMS voltages). No plan for 3 phase output, doesn't make sense for 800W of power honestly.
>>2927958
I don't have a plan for a battery, just a large capacitor bank, a few mF to maintain the voltage rail in case of heavy transients. If I did use a battery, I would have to put the two 48V panels in parallel to match with a 48V li-ion battery pack (12S or 13S). That will make the entire system be limited to 48V. Transformer will need to be 48V to 300V, a worse ratio, primary winding will need to be thicker to carry more current, switching FET will need to be even lower Rds to prevent higher losses (or even worse, I may have to put multiple FETs in parallel). Everything just falls apart.
I do agree, I should probably look into filling the cracks in the panels though, no harm in making the "free" panels last longer. Probably potting resin or something similar? I have no idea.
I am planning on making this project MCU based so MPPT will be a software feature. Anyway, I'll be using good old TL431 + 817 optocoupler to get feedback from the secondary side.
I would use DC but its not adventurous enough for me.
I am really excited. Its been quite some time since I did some serious power electronics. I feel manly already. I finally get to wind a big boy transformer
6/24/2025, 8:20:37 PM
>>508603944
>saar I'm not pajeet you see actually I from kashmir *head bobble*
You don't say, nigger???
>saar I'm not pajeet you see actually I from kashmir *head bobble*
You don't say, nigger???
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