rom0011
Newbie level 5
I only know burst mode to design a dc-dc converter under light load.
But i ever read one article there have some PFM methods like one pulse PFM,
multipulse PFM.
I need better method to design PFM for obtaining better effieciency.
Like constant current ,its current threshold can be up to
400mA (example:IL=400mA).But i dont know how to design this large constant current under light load.Because it may cause oscillation under light load.
Can someone tell me how to design PFM to improve better efficiency ?
But i ever read one article there have some PFM methods like one pulse PFM,
multipulse PFM.
I need better method to design PFM for obtaining better effieciency.
Like constant current ,its current threshold can be up to
400mA (example:IL=400mA).But i dont know how to design this large constant current under light load.Because it may cause oscillation under light load.
Can someone tell me how to design PFM to improve better efficiency ?