mrdevil83
Newbie level 4
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- Feb 14, 2014
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Hello to all.
I have built a pure sine wave inverter from 12v to 230v AC at aproximately 500W.
The DC/DC converter is the usual forward converter with sg3525 and ETD39.
Now my actual problem is the LC filter at the output.
The output is 50HZ sinewave.
The SPWM is 24.3KHZ.
The H bridge driver is the EG8010 + ir2110 board found on ebay with the name EGS002.
The output is a beautiful sine wave, the problem i have is in selecting the core for the output.
I have tried using the toroid core from atx power supply filter, but even with no load the core gets hot.
I do not know, should i use ferrite core at the output or iron powder core?
The chinese people recommend 3.2mh choke and 2.2uf/400v at the output.
I have built a pure sine wave inverter from 12v to 230v AC at aproximately 500W.
The DC/DC converter is the usual forward converter with sg3525 and ETD39.
Now my actual problem is the LC filter at the output.
The output is 50HZ sinewave.
The SPWM is 24.3KHZ.
The H bridge driver is the EG8010 + ir2110 board found on ebay with the name EGS002.
The output is a beautiful sine wave, the problem i have is in selecting the core for the output.
I have tried using the toroid core from atx power supply filter, but even with no load the core gets hot.
I do not know, should i use ferrite core at the output or iron powder core?
The chinese people recommend 3.2mh choke and 2.2uf/400v at the output.