AN3180一个200瓦的无纹波输入电流PFC预调节器的L6563S

AN3180一个200瓦的无纹波输入电流PFC预调节器的L6563S

AN3180
Application note
A 200 W ripple-free input current
PFC pre-regulator with the L6563S

Introduction
A major limitation of transition-mode-operated PFC pre-regulators is their considerable input
ripple current, which requires a large differential mode (DM) line filter to meet EMI
requirements. The ripple-steering technique, with its ability to reduce an inductor ripple
current, theoretically to zero, can be very helpful in reducing the need for DM filtering in any
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