resonant switched-capacitor (ReSC) converter that merges a series-parallel SC front end and a mm-scale, 36 nH off-chip inductor. The design implements closed-loop variable voltage regulation, interfacing from a nominal 12 V supply to a 3.5- 4 V output. Variable ...
A 48-to-12 V Cascaded Multi-Resonant Switched Capacitor
Download Citation | On Oct 10, 2021, Ting Ge and others published A 48-to-12 V Cascaded Multi-Resonant Switched Capacitor Converter with 4700 W/in 3 Power Density and 98.9% Efficiency | Find, read ...
A 48-to-12 V Cascaded Resonant Switched-Capacitor Converter for …
Download Citation | On Mar 1, 2019, Zichao Ye and others published A 48-to-12 V Cascaded Resonant Switched-Capacitor Converter for Data Centers with 99% Peak Efficiency ...
A Highly-Integrated Series-Parallel Switched-Capacitor
Request PDF | A Highly-Integrated Series-Parallel Switched-Capacitor Converter with 12-Volt-Input and Quasi-Resonant Voltage-Mode Regulation | This paper presents an integrated circuit (IC ...
A 48-to-12 V Cascaded Multi-Resonant Switched Capacitor …
Download Citation | On Oct 10, 2021, Ting Ge and others published A 48-to-12 V Cascaded Multi-Resonant Switched Capacitor Converter with 4700 W/in 3 Power Density and 98.9% Efficiency | Find, read ...
A 48-to-6 V Multi-Resonant-Doubler Switched-Capacitor …
Compared with conventional switched-capacitor (SC) converters with two operating phases, multi-phase SC converters can achieve the same conversion ratio with fewer capacitors and switches. This feature makes multi-phase SC converters an attractive candidate for applications with large conversion ratios. To further improve the …
What are the Best Capacitors for Power Supply Filtering?
Self-resonance is also important here because, if the system operates beyond a capacitor''s self-resonance frequency, a capacitor will "act" like it has a different value. In addition, other reactive components (e.g., inductors, chokes, or ferrites) will interact with the capacitor to create complicated coupled oscillations.
[PDF] A Highly Integrated Series–Parallel Switched-Capacitor Converter With 12 V Input and Quasi-Resonant …
Details of level shifting, gate driving, and bootstrapping for an all n-channel powertrain, including a precharge circuit, to facilitate safe startup are discussed in this paper. This paper presents an integrated circuit (IC) implementation of a hybrid switched capacitor converter based on a modified series–parallel architecture. The converter operates in a …
A 48-to-12 V Cascaded Multi-Resonant Switched Capacitor …
The cascaded resonant switched capacitor converter topology has been demonstrated to have significant advantages on system efficiency and power density in 48-to-12 V data center applications. This work presents a cascaded multi-resonant variant of this topology that enables further improvements on the power density. The first stage needs only two …
Analysis of a 48V-12V Hybrid Switched Capacitor Converter with …
(DOI: 10.1109/COMPEL49091.2020.9265816) A hybrid 48V-12V fixed ratio converter (DCX) is analyzed in this paper. It is composed of soft charging switched capacitors and an autotransformer with DC winding current, aiming at high output current applications. Its non-resonant operation and the self-balance between the capacitor and the autotransformer …
A Highly Integrated Series–Parallel Switched-Capacitor Converter With ...
This paper presents an integrated circuit (IC) implementation of a hybrid switched capacitor converter based on a modified series-parallel architecture. The converter operates in a quasi-resonant mode to regulate a nominal 3.7 V output from a 12 V supply. The design uses zero-current detection and nested 1-b regulation to autotune the zero …
Resonant switched-capacitor (ReSC) converters are promising alternatives for conventional SC and magnetic-based converters, with the potential to achieve simultaneously higher efficiency and higher power density. Since ReSC converters operate in resonant mode, zero current switching (ZCS) occurs naturally and the V-I overlap …
48-to-12-V Applications with Soft-Charging and Zero Voltage …
"A 48-to-12 V Cascaded Resonant Switched-Capacitor Converter Achieving 4068 W/in3 Power Density and 99.0% Peak Efficiency," 2021 APEC. Hybrid Switched-Capacitor …
Analysis of a 48V-12V Hybrid Switched Capacitor ...
Eventually, a 48V input, ~12V/140W output experimental prototype with isolated detection module and dual-resonant point tracking (DRPT) strategy is built and tested for verifying operating ...
For the single stage, publication [3] demonstrates that two 2:1 resonant switch capacitor circuits are cascaded and demonstrate a high performance for the 48/12V power conversion. Admittedly ...
Hybrid switched capacitor converter (HSC) using source …
, an ideal resonant tank (i.e., high-quality Q-factor of the resonant tank) and converter switching at the resonant frquency, the output current peak, as shown in Figure 5, can be calculated with the following equation: â è ç 𝑘 = â è ç 𝜋 2 (5) whereas the output current is the summation of the currents of the output windings.
A 3-Phase Resonant Switched-Capacitor Converter for Data Center 48-V Rack Power Distribution …
Since the power consumption of data centers keeps increasing, a 48-V rack power distribution system replaces the conventional 12-V power bus to reduce the power delivery IR losses. Meanwhile, the 48 V needs conversion into 1 V or lower at the point-of-load for microprocessors. A 48V-to-12V DC-DC converter can serve as a first stage …
March 2014 DocID12784 Rev 6 1/35 AN2450 Application note LLC resonant half-bridge converter design guideline Silvio De Simone Introduction The growing popularity of the LLC resonant converter in its half-bridge implementation (see Figure 1 on page 4) is due to its high-efficiency, low le vel of EMI emissions, and its ability to ...
11.9 A Compact 12V-to-1V 91.8% Peak Efficiency Hybrid Resonant …
Request PDF | On Feb 19, 2023, Guigang Cai and others published 11.9 A Compact 12V-to-1V 91.8% Peak Efficiency Hybrid Resonant Switched-Capacitor Parallel Inductor (ReSC-PL) Buck Converter | Find ...
At the capacitive reactance of the capacitor, the voltage lags the current by -90 °. Therefore U L and U C are phase shifted by 180 °, i.e. out of phase The total resistance of the resonant circuit is called Impedance Z. Ohm''s law applies to the entire circuit. The impedance Z is smallest at the resonance frequency when X L = X C . Resonance ...
Download Citation | On Jun 14, 2021, Ting Ge and others published A 48-to-12 V Cascaded Resonant Switched-Capacitor Converter Achieving 4068 W/in 3 Power Density and 99.0% Peak Efficiency | Find ...
A 48-to-12 V Cascaded Resonant Switched-Capacitor ...
A 4-to-1 cascaded resonant switched-capacitor (ReSC) converter, comprising two cascaded 2-to-1 ReSC converters, has been demonstrated to have high efficiency and high power density in previous literature. This work explores the approaches to further improve the performance of the cascaded ReSC converter, including merging two phases of the …
A 48-to-12 V Cascaded Resonant Switched-Capacitor Converter …
Resonant switched-capacitor (ReSC) converters are promising alternatives for conventional SC and magnetic-based converters, with the potential to achieve simultaneously higher efficiency and higher power density. Since ReSC converters operate in resonant mode, zero current switching (ZCS) occurs naturally and the V-I overlap …
A Resonant Switched-Capacitor based 48-to-12 V Bus …
This work presents a new type of hybrid switched-capacitor based power converter, named cascaded resonant converter, which can have significantly higher efficiency than the …
A 3-Phase Resonant Switched-Capacitor Converter for Data …
Meanwhile, the 48 V needs conversion into 1 V or lower at the point-of-load for microprocessors. A 48V-to-12V DC-DC converter can serve as a first stage between the huge gap of 48V-to-1V, in a two-stage voltage regulator module (VRM). Thus, this paper presents a 3-phase resonant switched-capacitor ( 3Φ-ReSC) converter as the first stage …
An Improved 48-to-12V Series-Parallel Resonant Switched-Capacitor …
Dong-Ying and others published An Improved 48-to-12V Series-Parallel Resonant Switched-Capacitor Converter for ... A Zero Inductor-Voltage 48V to 12V/70A Converter for Data Centers with 99.1% Peak ...
Capacitor Solutions for Resonant Converter Applications
Since the resonance capacitors are used in resonance circuits, it is extremely important that the capacitance change caused by temperature fluctuations is small. ... 12V AC 100~240V Li Battery (400V) TDK Item Borad Qty Function TDK Item Borad Qty Function CGA6N1C0G3A822J 36 LLC Resonant CGA5L1X7R1E106K 120 Output Filter …
A High Performance 48-to-6 V Multi-Resonant Cascaded Series-Parallel (CaSP) Switched-Capacitor Converter …
Switched-capacitor (SC) converter topologies can achieve high efficiency and high power density due to their efficient switch utilization and use of high energy density capacitors. The use of resonant inductors can further improve efficiency by enabling soft-charging and soft-switching operations. However, the number of components (switches and …
Multi Resonant Switched-Capacitor Converters Owen Jong (ABSTRACT) This thesis presents a novel Resonant Switched-Capacitor Converter with Multiple Res-onant Frequencies, abbreviated as MRSCC for both high density and efficiency non-isolated ... 12V to 48V in order to reduce distribution loss. This thesis proposes a novel Resonant
Capacitor Solutions for Resonant Converter Applications
High-power resonance capacitors are an important component in magnetic resonance using wireless power transfer EV charging systems. This is because a high-accuracy …
150w ZVS driver 12v 20A power supply, i finally made my own ...
150w ZVS driver 12v 20A power supply, i finally made my own ZVS circuit and tried two flybacks in series, i used IRFP150N MOSFETS and i splited the primary coil into both cores, i have a resonant capacitor of arround 1.66uF, the output of the gray flyback goes to the ground of the other flyback. Non-ElectroBOOM Video
Resonant switched-capacitors converters (ReSCCs) are becoming an attractive alternative to traditional buck converters in volume-constrained and high …
In this work, a ZVS control technique is implemented on a cascaded resonant based intermediate bus converter for 48-to-12 V data center power delivery, on a 720 W …
An Improved 48-to-12V Series-Parallel Resonant Switched-Capacitor ...
Download Citation | On Nov 16, 2021, You Dong-Ying and others published An Improved 48-to-12V Series-Parallel Resonant Switched-Capacitor Converter for Data Center Applications | Find, read and ...
An Improved 48-to-12V Series-Parallel Resonant Switched …
This article compares common RSCC topologies and presents an improved Series-Parallel Resonant Switched-Capacitor Converter (SPRC), which has two-phase and split-phase …
A 97% Peak Efficiency and 308 A/in3 Current Density 48-to-4 V Two-Stage Resonant Switched-Capacitor …
Resonant switched-capacitor (SC) converters have shown great potential in achieving high efficiency and high current/power density, due to their better passives and switch utilization compared to the conventional switched inductor and SC converters. The series-parallel (SP) topology has excellent passive component utilizations, since all flying capacitors sustain …
