4kw smps

pawan123

New member
any body can help me this smps i want this smps schematics.


thanks
 

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picgak

New member
The opto coupler used in that SMPS is FOD3180, let me know if you need more information's
Regards
Thank you MicrosiM, I was looking for a Optocopler to drive Mosfets at 310v H Bridge on the output stage of a microcontroller based sinewave inverter (50Hz modulated at 40khz) for my personal project in mind, so far I did not find any optocopler above 50Khz (TLP350). FOD3180 is good for my project.
regards ani
 

MicrosiM

Administrator
Staff member
Thank you MicrosiM, I was looking for a Optocopler to drive Mosfets at 310v H Bridge on the output stage of a microcontroller based sinewave inverter (50Hz modulated at 40khz) for my personal project in mind, so far I did not find any optocopler above 50Khz (TLP350). FOD3180 is good for my project.
regards ani


I am not sure about the design you are working at or the schematics, But remember that you MAY NEED dual power supplies to drive this FOD3180 properly, since feeding them from 1 SOURCE will cause problems when the SMPS is fully loaded.

The high side needs one, the low side needs one.

What is your running freq.?


Regards
 

picgak

New member
I am not sure about the design you are working at or the schematics,
What is your running freq.?
Regards
I did not start the work on schematics,
First stage is a dc to dc smps witch converts Battery voltage to 310vdc , second stage is an H bridge driven by sine weighted pulses (40Khz) from a microcontroller as shown in the figure attached below. it is a long pending project.
regards ani
 

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MicrosiM

Administrator
Staff member
I did not start the work on schematics,
First stage is a dc to dc smps witch converts Battery voltage to 310vdc , second stage is an H bridge driven by sine weighted pulses (40Khz) from a microcontroller as shown in the figure attached below. it is a long pending project.
regards ani

I am not sure if that diagram for HALF BRIDGE????
 
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