Twisted Core Coupled Inductors for Microprocessor Voltage Regulators

In the past few years, coupled inductors have become more and more popular in microprocessor voltage regulators (VRs) for they can increase the VRs' steady-state and transient performances. In this paper, twisted core coupled inductors are proposed to reduce the winding path of coupled inductor...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2008-09, Vol.23 (5), p.2536-2545
Main Authors: Yan Dong, Jinghai Zhou, Lee, F.C., Ming Xu, Shuo Wang
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Coupled inductor
Couplings
Design engineering
Electric power
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical equipment
Electronic circuits
Electronics
Exact sciences and technology
Inductance
Inductors
Integrated circuits
Integrated circuits by function (including memories and processors)
Magnetic cores
Magnetic devices
Microprocessors
Power system transients
Regulators
Reluctance
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal convertors
Steady-state
Transformers and inductors
twisted core
Virtual reality
Voltage
voltage regulator (VR)
Voltage regulators
Winding
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Summary:In the past few years, coupled inductors have become more and more popular in microprocessor voltage regulators (VRs) for they can increase the VRs' steady-state and transient performances. In this paper, twisted core coupled inductors are proposed to reduce the winding path of coupled inductors. Next, the reluctance model of the twisted core coupled inductors is proposed. After that, based on the proposed reluctance model, the design procedure of the twisted core coupled inductors is shown. Finally, experimental results verify the proposed twisted core coupled inductors and the reluctance model.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2008.2002067