VRM設計方法~~

vjc5

大家好,
    請問VRM (voltage regulator modulator), 與一般DC/DC converter有什麼不同?
    除了PWM有error amp外, VRM還有current-feedback的機制. 應該怎麼設計呢? 還是有相關書籍
     可以推薦~~ 感謝

cellent6911

You can refer to the application note or circuit of companies( Intersil,ST, Richtek)
The system is more complicated than other syn-buck's and now I do that for many years.
I suggest you that you first read the papers or articles about syn-buck and can be familiar with
multiphase converter.

vjc5

I'm appreciating for your help.
I will find some papers or articles.
Thanks

andyliucc

multiphase 設計 用 couple inductor 多嗎 有其他衍生的考量嗎?需注意哪些

cellent6911

Using couple inductor on VRM is not popular for the market, but some companny such as Voteral.. had push it to the high cost's market.For studies in this, you can refer to the "F.C.LEE" students's papers.