Which control chip is generally used for Dual Switch Forward?

[PYGMARO]

I plan to desing a power supply with Dual Switch Forward, I am wondering Which control chip is generally used for Dual Switch Forward?

[Oklahoma Wolf]

Re: Which control chip is generally used for Dual Switch Forward?

I've been seeing a lot of CM6800G's in various power supplies with that design lately. Off the top of my head the Corsair TX750 uses it, as do the various incarnations of the FSP Epsilon design.

CM6800G does PWM and PFC in one package. That's about as far as my knowledge takes me though - never found a datasheet either.

[starfury1]

Re: Which control chip is generally used for Dual Switch Forward?

this sounds like what your looking for OW and PYGMARO these should help if you are going to design something along those lines
good luck with that

Not sure on the "G" ,only mention I quickly noticed was as RoHs part (Pb free)

CM6800 Data page and PDF's

3 pdf's at the bottom, one is on algorithms

HTH


Cheers

[PYGMARO]

Re: Which control chip is generally used for Dual Switch Forward?

Thanks a lot!

I never used the CM6800, but I am familiar with UCC3818 for PFC, I would like to use seperate chip for PFC and Forward.

So I want to know if any guy ever used UCC3825 for Dual Switch Forward and if there is something to be noticed?

[starfury1]

Re: Which control chip is generally used for Dual Switch Forward?

Sorry nope, I have enough trouble understanding them let alone designing them

a list of PDF's at some data sheet site

A link to TI section on this type of stuff Here

If anyone wants to have a look at it.

There may be a few around here that can help on this

Cheers

[Oklahoma Wolf]

Re: Which control chip is generally used for Dual Switch Forward?

this sounds like what your looking for OW

My hero - thanks

[starfury1]

Re: Which control chip is generally used for Dual Switch Forward?

No worries Oklahoma Wolf..... hope it helps