Fig.1

Multi-cylinder engines used in vehicle"

Fig.2

5-cylinder star class engines used in jet plane"

Fig.3

3-phase interleaving power system"

Fig.4

The number of transistors integrated on the die for Intel microprocessors"

Fig.5

Intel microprocessors’ power road map"

Fig.6

A multi-phase interleaved synchronous Buck converter"

Fig.7

VRM on computer mother board"

Fig.8

Output current ripple reduced with interleaving Buck"

Fig.9

Current ripple cancellations in multiphase Buck converter"

Fig.10

Input currents of single-phase Buck and 4-phase Buck"

Fig.11

Efficiency improvement by optimizing number of phases of interleaving Buck converter"

Fig.12

Interleaving Buck converter used in VRM"

Fig.13

Distributed power system architecture with multi-phase VRM"

Fig.14

Interleaving and magnetically-integrated Buck converter"

Fig.15

Steady phase current ratio of coupling and non-coupling"

Fig.16

Transient phase current response speed ratio of coupling and non-coupling"

Fig.17

Design criterion for interleaving and magnetically integrated Buck converter"

Fig.18

Integrated inductors composed with discrete inductors"

Fig.19

The integrated inductor structure has a flux ripple cancellation effect in the center leg"

Fig.20

Coupling inductors changed with non-coupling inductors"

Fig.21

Inductor current ripple reduced with coupling inductors"

Fig.22

Several typical structures of coupling inductor"

Fig.23

Core loss density of different magnetic materials"

Fig.24

Application field of interleaving and magnetically-integrated Buck converter"

Fig.25

Interleaving Boost converter"

Fig.26

Interleaving and magnetically-integrated Boost converter"

Fig.27

Distributed power system architecture with multi-phase VRM and multi-phase PFC"

Tab.1

Comparison for interleaving buck and boost converter"

Tab.2

Comparison for interleaving and magnetically-integrated buck and boost converter"

Table 3

Comparison for 3 kinds of interleaving technologies"