eem2am
Banned
200w smps
Hello,
We need to design a SMPS for an underground application. To do with mine-shafts.
The spec of the power supply is as follows:-
Vin = 85-265VAC
Vout = 50V DC
I(out) = 0 to 4 A
P(out) = 200W
Needs Power Factor Correction.
No isolation requirement
Must have inrush limitation (-if we use a boost PFC stage then we must add something so that we do not fall victim to the inrush currents associated with boost PFC's when they start-up or recover from brown-outs)
For reliability's sake, we must have two similar 200W power supplies working together to share the load current. -if one of the supplies fails, the other one must be able to supply all the load current itself.
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It is my belief that our requirements are common and that an IC manufacturer will have standard solutions comprising dedicated integrated circuits for this exact purpose.
I would be most grateful if readers know of suitable IC's, whilst i am seeking unsucessfully through the various catalogs.
Any IC suggestions greatly appreciated.
Hello,
We need to design a SMPS for an underground application. To do with mine-shafts.
The spec of the power supply is as follows:-
Vin = 85-265VAC
Vout = 50V DC
I(out) = 0 to 4 A
P(out) = 200W
Needs Power Factor Correction.
No isolation requirement
Must have inrush limitation (-if we use a boost PFC stage then we must add something so that we do not fall victim to the inrush currents associated with boost PFC's when they start-up or recover from brown-outs)
For reliability's sake, we must have two similar 200W power supplies working together to share the load current. -if one of the supplies fails, the other one must be able to supply all the load current itself.
--------------------------------------------------
It is my belief that our requirements are common and that an IC manufacturer will have standard solutions comprising dedicated integrated circuits for this exact purpose.
I would be most grateful if readers know of suitable IC's, whilst i am seeking unsucessfully through the various catalogs.
Any IC suggestions greatly appreciated.