公开(公告)号：EP4418517A1

公开(公告)日：2024-08-21

申请号：EP23177904.2

申请日：2023-06-07

Applicant: Delta Electronics Inc.

Inventor： TUNG, Feng-Hsuan ,  TSAI, Terng-Wei ,  HUANG, Chia-Hsiong ,  LIN, Yu-Jen

IPC: H02M1/42 ,  H02M1/34 ,  H02M1/00

CPC classification number: H02M1/0058 ,  H02M1/4233 ,  H02M1/4241 ,  H02M1/346

Abstract: A Totem-pole power factor corrector receives an input power source (Vin) and convert the input power source (Vin) into an output power source (Vo). The Totem-pole power factor corrector includes an input inductor (L, Lboost, nL), a fast-switching switch leg (11), a slow-switching switch leg (12), a resonant tank (13), and an output capacitor (Co). The fast-switching switch leg (11) includes a fast-switching upper switch (S2, nS2) and a fast-switching lower switch (S1, nS1), and the fast-switching upper switch (S2, nS2) and the fast-switching lower switch (S1, nS1) are commonly coupled at a first middle node (N1). The slow-switching switch leg (12) is coupled in parallel to the fast-switching switch leg (11), and the slow-switching switch leg (12) includes a slow-switching upper and a slow-switching lower switch (Mi). The resonant tank (13) includes a resonant inductor (Lr, nLr) and at least one resonant capacitor (Cr, nCr). A first end of the resonant inductor (Lr, nLr) is coupled to the first middle node (N1), and a second end of the resonant inductor (Lr, nLr) is coupled to the at least one capacitor.

公开(公告)号：EP4418511A1

公开(公告)日：2024-08-21

申请号：EP23179269.8

申请日：2023-06-14

Applicant: Delta Electronics Inc.

Inventor： TUNG, Feng-Hsuan ,  TSAI, Terng-Wei ,  HUANG, Chia-Hsiong ,  LIN, Yu-Jen

IPC: H02M1/00 ,  H02M1/42 ,  H02M3/00 ,  H02M3/07 ,  H02M7/48 ,  H02M7/483 ,  H02M1/15 ,  H02M1/44

CPC classification number: H02M3/01 ,  H02M3/07 ,  H02M1/0064 ,  H02M1/0058 ,  H02M1/0095 ,  H02M7/4837 ,  H02M7/4815 ,  H02M1/4241 ,  H02M1/4216 ,  H02M1/327 ,  H02M1/44 ,  H02M1/15 ,  H02M3/158

Abstract: A flying capacitor (FC, FC1, FC2, FC3, FC-1, FC-2) converter with zero-zero switching includes an input inductor (Lboost, Lboost-1, Lboost-2), a fast-switching switch leg (11), a slow-switching switch leg (12), at least one flying capacitor (FC, FC1, FC2, FC3, FC-1, FC-2), a resonant tank (13), and an output capacitor (Co). The fast-switching switch leg (11) included an upper leg (111) having a plurality of upper switches (Q11, Q12, Q13, Q14) and a lower leg (112) having a plurality of lower switches (Q21, Q22, Q23, Q24). The slow-switching switch leg (12) includes a slow-switching upper switch (Q1) and a slow-switching lower switch (Q2), and the slow-switching upper switch (Q1) and the slow-switching lower switch (Q2) are coupled at a second middle node (N2). The at least one flying capacitor (FC, FC1, FC2, FC3, FC-1, FC-2) is correspondingly coupled between the upper node (N11, N12, N13) and the lower node (N21, N22, N23). The resonant tank (13) includes a resonant inductor (Lr) and a resonant capacitor (Cr), and the resonant inductor (Lr) and the resonant capacitor (Cr) are coupled in series between the first middle node (N1) and the second middle node (N2).