In search of: 300W smps +/-50VDC

[sst4270]

Hello all,

I'm new here and I've tried the search function, but I had no luck...

I would like to build a 300W smps with +/- 50V DC output.

Can someone direct me to any builds on this site that would meet my requirements.

Regards,

Steve

 

[hungsys]

I'm have a schematic for 800w (+/- 42VDC ) using sg3525 & ir2110

 

[arthur]

hungsys please can you give me the shematic plz

 

[hungsys]

@arthur . here . if u want PCB , ican send to u . Thank !
https://www.facebook.com/hungvsvc

 

[lazzer408]

hungsys - Do you have a larger image? Have you tried driving the gates (are there only 2?) directly off the 3525? I'm currently building a +/-35v supply driving IRFz46n from a 3525.

OP - Do you need regulation? I'm guessing this is for a subwoofer amplifier?

 

[sst4270]

hungsys - Do you have a larger image? Have you tried driving the gates (are there only 2?) directly off the 3525? I'm currently building a +/-35v supply driving IRFz46n from a 3525.

OP - Do you need regulation? I'm guessing this is for a subwoofer amplifier?

Actually for a full-range amplifier. Powered monitor(s)

 

[lazzer408]

Try this one. Works great. Just scale it up to your needs. The simplified version will not drive the number of mosfets you'll need for 300w (4x IRFz44n is fine). Just add the drive circuit from the non-simplified version to the simplified one.

http://sound.westhost.com/project89.htm

 

[hungsys]

@Lazzer408 , It is For a class D . U Pls visit facebook https://www.facebook.com/hungvsvc to view more . Thank all !!!

 

[masood]

dear all
have u pcb for this amplifier
thanks