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Author Topic: Using reverse recovery spike reduction inductor with PFC controller  (Read 420 times)

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Offline FaringdonTopic starter

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Using reverse recovery spike reduction inductor with PFC controller
« on: September 14, 2022, 10:51:39 pm »
Page 11, Fig 19, of the L4981 datasheet shows an reverse recovery spike reducer inductor (L2).
If I use this circuit (which  involves L2, D5, D6, D7, C14, R18) with the UCC28070A PFC controller instead, then do you agree, the L2 should go on the diode side of the Current sense transformer primary?

L4981 datasheet:
https://www.st.com/resource/en/datasheet/l4981.pdf

UCC28070A datasheet:
https://www.ti.com/lit/ds/symlink/ucc28070a.pdf?ts=1663195823926&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FUCC28070A
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