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With meticulous adjustment and testing of the 50K potentiometers, I have the magic resistive numbers for both channels to provide the...
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This picture is the stereo output of the ISO transformer 60Hz pure sine❤️, Hard to get output from the low end of the inverter just...
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Going to bench test with battery power driving transformers and getting the best sine wave output possible, May end with another dual...
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Think I may have in the quest for the most power output from the two FET inverter got away from the best sinewave that the ISO...
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Just completed 140VDC dual solar testing on the new two FET inverter survived it all.
Mixed results from testing:
Ran level 1 quartz...
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Starting the preparations for another two FET inverter test.
Featuring : Dual 140VDC solar input, much better optic coupler/FET...
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WOW Fixed it 😍
Runs stable pure sine on the two FETinverter, little capacitor across the center of the three 820 ohm resistors that...
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Last night did the math on resistors and found out the 50K potentiometers are more than what is needed to cover the optic coupler LED...
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Today it's a blue sky day, All three solar arrays running the mini split and more💚
Going to spend some time in making the optic coupler...
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Two FET inverter has been restored to normal operation, in a few days I will test again at 140VDC.
Plenty of adjustments to work on...
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Final results on 180VDC two FET inverter testing.
The inverter operates more stable at dual 140VDC, Needs improvement in the opto...
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Good morning ready for the dual 180VDC testing 6AM, solar day starts around 9AM.
First picture two FET inverter ready for...
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Tomorrow morning will start 180VDC dual testing on the two FET inverter, P channel Mosfets have arrived, have smooth operation on the...
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⚠️ Caution connect earth ground that appears between B1 and B2 at your own risk, not tested yet and on the surface looks electrically...
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All new diagrams once I get it fully functional for now these are the best for getting it done.
Read from page 39 on for ongoing...
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So much for saving money on the P channel FETs the new FETs are leaking big time at 180VDC supposed to be rated for 200 volts, swapped...
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The triple 820 ohm resistors accross the 12VDC power supply is working great to provide the second feed to each optic coupler LED...
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Busy recently with yard work and gardening, still fighting P channel triggering from the 555 timer, Going to have to get creative with...
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Spent the entire day rebuilding the NPN transistor circuit, New resistors connections, worked perfectly in my lap with LED in place of...
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Moved 555 timer to the other end of the inverter, about 6 alligator clip jumpers no longer needed, short direct solder connections to...
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