Техническая Спецификация для STMicroelectronics A 200 W ripple-free input current PFC pre-regulator with the L6563S EVL6563S-200ZRC EVL6563S-200ZRC

STMicroelectronics

Модели

EVL6563S-200ZRC

Contents

AN3180

2/39

Doc ID 17273 Rev 1

Contents

Basic topologies with zero-ripple current . . . . . . . . . . . . . . . . . . . . . . . . 4

Zero-ripple current phenomenon: theory . . . . . . . . . . . . . . . . . . . . . . . . 6

Sensitivity of zero-ripple current condition . . . . . . . . . . . . . . . . . . . . . 10

Zero-ripple current phenomenon: practice . . . . . . . . . . . . . . . . . . . . . . 13

Capacitor selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

A 200 W ripple-free input current PFC pre-regulator . . . . . . . . . . . . . . 19

Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Electrical equivalent circuit models of coupled inductors and
transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Measuring transformer and coupled inductor parameters . . . . . . 36

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38