Vertical stacked LEGO-PoL CPU voltage regulator

J Baek, Y Elasser, K Radhakrishnan… - … on Power Electronics, 2021 - ieeexplore.ieee.org
This article presents a 48–1 V merged-two-stage hybrid-switched-capacitor converter with a
linear extendable group operated point-of-load (LEGO-PoL) architecture for ultrahigh …

Overview of voltage regulator modules in 48 V bus-based data center power systems

J Liang, L Wang, M Fu, J Liang… - CPSS Transactions on …, 2022 - ieeexplore.ieee.org
The intermediate dc bus voltage in modern data center backend power supply is evolving
from conventional 12 V to 48 V. It still requires the voltage regulator modules (VRM) to feed …

Large signal analysis on variations of the hybridized Dickson switched-capacitor converter

NM Ellis, R Amirtharajah - IEEE Transactions on Power …, 2022 - ieeexplore.ieee.org
Dickson-type dc–dc converters have gained renewed interest in recent years due to their
best-in-class volt-amp switch utilization. In addition,“hybrid” switched-capacitor (HSC) …

Virtual intermediate bus CPU voltage regulator

Y Chen, P Wang, H Cheng… - … on Power Electronics, 2021 - ieeexplore.ieee.org
This article presents a merged two-stage 48-V-to-1-V point-of-load (PoL) architecture with a
24-V virtual intermediate bus (VIB) for CPU voltage regulator applications. The VIB-PoL …

The symmetric dual inductor hybrid converter for direct 48V-to-PoL conversion

NM Ellis, RA Abramson, R Mahony… - … on Power Electronics, 2023 - ieeexplore.ieee.org
This work introduces the symmetric dual inductor hybrid (SDIH) dc–dc converter topology,
which is suitable for large conversion ratios where regulation is required, such as direct 48 V …

MSC-PoL: Hybrid GaN-Si Multistacked Switched Capacitor 48V PwrSiP VRM for Chiplets

P Wang, Y Chen, G Szczeszynski… - … on Power Electronics, 2023 - ieeexplore.ieee.org
This article presents a multistack switched-capacitor point-of-load (MSC-PoL) voltage
regulation module (VRM) with coupled magnetics for ultrahigh-current chiplet systems. In the …

Data center power supply systems: from grid edge to point-of-load

Y Chen, K Shi, M Chen, D Xu - IEEE Journal of Emerging and …, 2022 - ieeexplore.ieee.org
Data centers consume about 2% of the world's electricity with continuing growth. The power
supply system plays a significant role in the energy saving and decarbonization of data …

A Matrix Auto-transformer Switched-Capacitor Converter for Data Center Application

M Qiu, M Wei, X Liu, H Meng… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article proposes a matrix auto-transformer switched-capacitor dc–dc converter to
achieve a high voltage conversion ratio, high efficiency, and high power density for 48-V …

A High Conversion Ratio Matrix Auto-transformer Switched-Capacitor Converter for 48V Datacenter Application

M Qiu, Z Sun, X Liu, K Hobbs, H Meng… - … on Power Electronics, 2024 - ieeexplore.ieee.org
This article proposes a matrix autotransformer switched-capacitor dc–dc converter (MASC)
that converts 48 to 3.2 V for datacenter applications. The proposed MASC is similar to the …

A symmetric dual-inductor hybrid dickson converter for direct 48v-to-pol conversion

NM Ellis, RCN Pilawa-Podgurski - 2022 IEEE Applied Power …, 2022 - ieeexplore.ieee.org
This work introduces a new Symmetric Dual-Inductor Hybrid (SDIH) Dickson DC-DC
converter topology that is suitable for large conversion ratios where regulation is required …