A Multilevel VR Implementation and MIMO Control Scheme for Vertically-Stacked Microprocessor Cores
Christopher Schaef ; Jason T. Stauth
DC-DC converters
,
Partial Power Processing
,
Differential Power Processing
,
Digital Circuits
,
VRM
Falling supply voltages and increasing parallelism in digital systems pose significant challenges to voltage regulators. A recently proposed…
A Novel Full Load Range ZVS DC-DC Full-Bridge Converter with Natural Hold-Up Time Operation
Pritam Das ; Majid Pahlevaninezhad
DC-DC converter
,
PWM
,
Hold Up Time
,
ZVS
Two-stage AC-DC are industry workhorses for powering network servers, telecom and other IT loads. Such converters are powered from single…
A Soft-Switching Multi-Phase Converter with Coupled Inductors and Switch-Time-Delay Control
Guofeng Zhu ; Ting Qian ; Brad Lehman
Soft-Switching
,
Coupled Inductors
,
Switch-Time-Delay Control
There is an increasing demand to implement soft-switching techniques to inductor coupled power converters in order to reduce their overall…
A Three-Port DC-DC Converter with Low Frequency Current Ripple Reduction Technique
Zhong Chen ; Qunfang Wu ; Mengnan Li ; Yaming Xu ; Qin Wang
three-port converter
,
current ripple reduction
,
small capacitance
A three-port DC-DC converter with low frequency current ripple reduction technique is proposed, which can be applied to two-stage systems…
An Extra-Low-Frequency RS-SCALDO Technique: A New Approach to Design Voltage Regulator Modules
Thilini Wickramasinghe ; Nihal Kularatna ; D. Alistair Steyn-Ross
supercapacitor
,
VRM
,
LDO
,
dc-dc converter
,
efficiency
The supercapacitor assisted low dropout regulators (SCALDO) indicate that the end-to-end efficiency (ETEE) of those regulators can achieve…
Bidirectional DC-DC Converter using Secondary LLC Resonant Tank
Eun-Soo Kim ; Jun-Hyoung Park ; Jong-Sung Joo ; Seung-Min Lee ; Kwangseob Kim ; Young-Su Kong
LLC Resonant Converter
,
Bidirectional DC-DC Converter
,
Energy Storage Systems
In order to have high gain LLC resonant characteristics in the bidirectional power transfers, a bidirectional Secondary LLC (SLLC) resonant…
Efficiency Impact of MOSFET Output Junction Capacitance on a High Step Down Ratio Phase Shift Full Bridge DC/DC Converter
Yutian Cui ; Weimin Zhang ; Leon M. Tolbert ; Daniel J. Costinett ; Fred Wang ; Benjamin J. Blalock
High efficiency phase shift full bridge converter
,
GaN
,
data center
In this paper, the designing and optimization of a high step down ratio (66:1) phase shift full bridge (PSFB) DC/DC converter used for data…
Extending the Operational Limits of the Push-Pull Converter with SiC Devices and an Active Energy Recovery Clamp Circuit
Bret Whitaker ; Daniel Martin ; Edgar Cilio
dc-dc converter
,
silicon carbide
,
high density
,
high frequency
This paper presents a push-pull converter that utilizes silicon carbide (SiC) power devices along with an active energy recovery clamp (AERC)…
High-Efficiency Low-Cost Soft-Swtiching DC-DC Converter for EV On-Board Battery Chargers
Min-Kwon Yang ; Hyoung-Sup Cho ; Seung-Jae Lee ; Woo-Young Choi
High-efficiency
,
Battery charger
,
DC-DC converter
This paper proposes a high-efficiency soft-switching pulse-width modulated (PWM) full-bridge (FB) dc-dc converter for the on-board battery…
High-Efficiency Ultracapacitor Charger using a Soft-Switching Full-Bridge DC-DC Converter
Min-Kwon Yang ; Hyoung-Sup Cho ; Seung-Jae Lee ; Woo-Young Choi
High-efficiency
,
Ultracapacitor
,
Charger
,
DC-DC converter
This paper proposes a high-efficiency ultracapacitor charger using a soft-switching full-bridge pulse-width modulated (PWM) converter….
MHz GaN-based Interleaved CRM Bi-Directional Buck/Boost Converter with Coupled Inductor
Xiucheng Huang ; Fred C. Lee ; Qiang Li ; Weijing Du
Gallium Nitride (GaN) device
,
bi-directional converter
,
interleaving
,
critical current mode (CRM)
,
zero-voltage switching (ZVS)
,
coupled inductor
This paper aims to analyze the benefits of coupled inductors in CRM operation based on a 1MHZ interleaved buck/boost converter with GaN…
Optimal Design of a Redundant High Current DC/DC Converter
Chenhao Nan ; Sitthipong Angkititrakul ; Zhixiang Liang
Redundant
,
DC/DC Converter
,
Current Sharing
This paper discusses an optimal design of a highly efficient redundant paralleled multiphase buck converter with active current sharing…
Output Filter Design in High-Efficiency Wide-Bandwidth Multi-Phase Buck Envelope Amplifiers
Yuanzhe Zhang ; Miguel RodrÃguez ; Dragan Maksimovi?
Envelope Tracking
,
Output Filter
,
Multi-Phase
,
Buck converter
,
Radio-Frequency Amplifier
Supply modulation is a system efficiency improvement technique in RF transmitters, where a power converter operating as an envelope tracking…
Resonant Converter Building Blocks for High Power, High Voltage Applications
M.S. Agamy ; M.E. Dame ; J. Dai ; X. Li ; P.M. Cioffi ; R.L. Sellick ; R.K. Gupta
Resonant Converters
,
Soft Switching
,
DC/DC Converters
,
VSC Converters
This paper presents the use of high frequency resonant power converters as building blocks for medium voltage and high voltage dc…
Voltage Regulation and Efficiency Optimization in a 100 MHz Series Resonant DC-DC Converter
Alihossein Sepahvand ; Luca Scandola ; Yuanzhe Zhang ; Dragan Maksimovi?
GaN
,
High Frequency
,
online optimization
,
burst control
,
on-off control
,
dual half bridge
This paper describes a closed-loop regulated dual half-bridge series resonant dc-dc converter operated at 100 MHz switching frequency using…
