LLC converters are widely used in high-power, high-power-density scenarios due to their ability to achieve high-frequency operation and galvanic isolation. However, the ac resonant capacitor and output dc capacitor are prone to aging and failure under high-frequency charging and discharging conditions. This paper proposes an online …
Learn MoreI. Z. Petric, R. K. Iyer, N. C. Brooks, and R. Pilawa-Podgurski, "A Real-Time Estimator for Capacitor Voltages in the Flying Capacitor Multilevel Converter," in 2022 IEEE 23rd Workshop on Control and Modeling for Power Electronics (COMPEL), 2022, pp. 1-8.
Learn MoreThe paper proposes a three-level resonant switched capacitor boost converter. The proposed converter can achieve full soft switching because of its resonant structure when switching frequency is equal to the resonant frequency. Frequency control is applied to regulate output voltage while keeping most of the soft switching features. The voltage …
Learn MoreThis paper proposed a hybrid SiC IGBT based resonant switched capacitor converter (HSiC-RSCC) to realize bidirectional DC/DC conversion in renewable energy applications. Featured in modular structure, HSiC-RSCC becomes suitable for high voltage conversion ratio applications. Different from conventional switched capacitor converter, small …
Learn MoreAbstract: Neutral point (NP) voltage imbalance blocks the deployment of carrier-based clamped converters for specific scenarios due to the limited adjustment capability of NP current by zero-sequence voltage (ZSV) injection. Therefore, a novel six-level switched-capacitor (SC) hybrid clamped (6L-SCHC) converter is proposed, which has …
Learn MoreAbstract: This article proposes an ultra-high-current 48-V-to-1-V hybrid switched-capacitor (SC) voltage regulator, named the switching bus converter, with a single-stage vertical power delivery architecture for next-generation ultra-high-power processors (e.g., graphics processing units, central processing units, application-specific integrated circuits, etc.).
Learn MoreThis article presents a fully integrated step-down switched-capacitor (SC) converter with nine voltage conversion ratios (VCRs) that regulates an output load vo ... Date of Publication: 05 June 2024 . ISSN Information: Print ISSN: 0018-9200 Electronic ISSN: 1558-173X INSPEC Accession Number: ...
Learn MoreNeutral-point voltage unbalancing is a common problem in three-level inverters. The original neutral-point voltage balancing circuit is the buck–boost converter. Since the inductor carries low frequency components, the power density is limited. At the same time, the efficiency is low because the soft switching cannot be realized. In this …
Learn MoreThe neutral-point-clamped (NPC) multilevel converter generally adopts the zero-sequence voltage injection method to realize the voltage balancing of the dc link capacitors. However, the relationship between the reference modulation voltage and the duty ratio of phase neutral point current is often a triangle or trapezoidal function. When …
Learn MoreThis 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 data-center applications. On the high-voltage side, the proposed converter can fully leverage the benefits of high-performance low voltage stress devices similar to the …
Learn MoreThis letter introduces the phase-merging turbo (PMT) technique, a method which significantly augments the output current capability of a continuous scalable conversion-ratio (CSCR) switched-capacitor voltage regulator (SCVR). The research also proposes a unique method for implementing communication-free ganging with these …
Learn MoreUse our Capacitance Conversion calculator to convert between the popular capacitance units pF, µF, nF, and F.
Learn MoreThis article proposes an output adjustable resonant switched capacitor converter (OARSCC) based on resonant voltage doubler. The proposed OARSCC works in regulated mode with on time fixed frequency modulation. The output is regulated through controlling the power stored in resonant capacitor. With proper converter configuration, the …
Learn MoreUse our Capacitance Conversion calculator to convert between the popular capacitance units pF, µF, nF, and F.
Learn MoreThis letter generalizes the fundamental limit theory in switched-capacitor (SC) converters. The fundamental limit theory proposed in 1995 sets the voltage-gain-ratio (VCR) boundaries for a specific number of k flying capacitors in the SC converter. Although this limit is valid for the positive VCR, another condition must be satisfied for the negative VCR. Moreover, …
Learn MoreThe hybrid switched-capacitor converter (SSC) has unique advantages in the application of high-fixed-ratio dc–dc conversion. To meet the requirements of the load or input …
Learn MoreAn integrated switched-capacitor (SC), voltage multiplier (VM) cell and switched-inductor (SL) based high gain DC-DC converter is put forward here. This suggested converter boosts the low voltage obtained from fuel cell or solar photo voltaic (PV) to make it suitable for grid integration. This converter is highly efficient with a gain of …
Learn MoreAuthors: Rohit Rothe1, Jungho Lee1, Zichen Fan1, Li-Yu Chen1, Donguk Seo2, Yoonmyung Lee2, Dennis Sylvester1, David Blaauw1 1University of Michigan, Ann Arbor, 2Sungkyunkwan University This work presents a switched capacitor high voltage (HV) DC-DC converter with a single off-chip flying capacitor (SOF) for uW current draw …
Learn MoreThe following are examples of capacitor types. Air Capacitor. Air capacitors use air as the dielectric. Air capacitors can be made in a variable or fixed capacitance form. Fixed air capacitors are rarely used because there are many other types with superior characteristics. Ceramic Capacitor. A ceramic capacitor uses a ceramic material as the ...
Learn MoreThis article proposes a switching bus converter, an efficient and compact hybrid switched-capacitor (SC) voltage regulator, for direct 48 V to point-of-load power conversion in data centers. The proposed topology merges a 2-to-1 SC front-end with two eight-branch series-capacitor-buck (SCB) modules through two switching buses. …
Learn MoreThis article presents a family of resonant switched-capacitor (SC) converters with multiple operating phases, herein named "Multi-Resonant SC Converter". These converters can be synthesized from the basic two-phase SC topologies, such as the Doubler and the Series-Parallel, and are capable of achieving the same conversion ratio …
Learn MoreOmni''s capacitance converter allows you to quickly convert between different units of capacitance. So whether you want the conversion between µF to nF or …
Learn MoreIn this work, we combine two popular power conversion topologies, the flying capacitor multilevel (FCML) converter and the LLC converter, to arrive at the proposed flying capacitor LLC (FCLLC) solution with advantages of each. The FCLLC comprises a step-down resonant switched-capacitor (ReSC) stage followed by a resonant transformer …
Learn MoreRequest PDF | On Apr 1, 2024, Mo Huang and others published Recent advancements in continuously scalable conversion-ratio switched-capacitor converter | Find, read and cite all the research you ...
Learn MoreSwitched-capacitor (SC) DC−DC converter[1] is an impor-tant alternative to inductive DC−DC converter, in terms of removing the bulky power inductor. Hence, it is widely …
Learn MoreThis calculator converts capacitance value between units pF, nF, µF and F. The capacitor code conversion chart lets you find the capacitance by looking up the code. The first two digits are the value in picofarads, while the third is the multiplier. If no multiplier is given the result is capacitance in pF.
Learn MoreSwitched capacitor converters (SCCs) have been researched and applied widely due to the advantages of high efficiency and high power density. A generalized topology has been proposed to derive a large number of new topologies, which provides more options to the engineers. The performance of these topologies can be distinguished effectively by …
Learn MoreUse our Capacitance Conversion calculator to convert between popular capacitance units pF, µF, nF, and F.
Learn MoreUse this capacitance converter to convert between common values like nF to uF. Use the chart to look up common capacitor codes. Or use the input fields to convert between …
Learn MoreA nonisolated fixed-ratio resonant switched-capacitor converter (RSCC) with high peak efficiency and high power density is encouraged as intermediate bus converter. With higher input voltages, stacked topologies achieve better component stress, but the relative current stress will be multiplied, e.g., ladder and Cockcroft–Walton …
Learn MoreThis article proposes a switching bus converter, an efficient and compact hybrid switched-capacitor (SC) voltage regulator, for direct 48 V to point-of-load power conversion in data centers. The proposed topology merges a 2-to-1 SC front-end with two eight-branch series-capacitor-buck (SCB) modules through two switching buses. Compared with the existing …
Learn MoreSwitched-capacitor (SC) DC−DC converter [] is an important alternative to inductive DC−DC converter, in terms of removing the bulky power inductor. Hence, it is widely used in low-profile, low-power applications, such as the internet of things (IoT) sensor nodes and energy harvesting [].Meanwhile, considering that capacitor has a much higher …
Learn MoreThe capacitance conversion calculator makes it easy to quickly convert capacitance values between units pF, nF, µF and F.
Learn MoreThe capacitor code conversion chart lets you find the capacitance by looking up the code. The first two digits are the value in picofarads, while the third is the multiplier. If no multiplier is given the result is capacitance in pF. Picofarad pF. Nanofarad nF. ... ©gtkc 2024 ...
Learn More3 · Multi-port converter (MPC) gets growing applications due to its advantages of flexible control and high power density. But the fluctuation low frequency DC bus current ripples could degrade the operational stability of the system. In this paper, a frequency-adaptive repetitive control method is proposed to eliminate the effect of variable low …
Learn MoreA Cross-Coupled Hybrid Switched-Capacitor Buck Converter With Extended Conversion Range and Enhanced DCR Loss Reduction
Learn MoreA switched-capacitor interleaved bidirectional dc–dc converter that combines a three-phase interleaved structure with switched-capacitor cells is proposed. The converter features a wide voltage-gain range, low-current ripple on the low-voltage side, low voltage stresses across power switches, an absolute common ground between …
Learn MoreThe five-level converter is a promising topology for industrial applications. In this article, a novel flying-capacitor (FC) five-level topology with reduced switching devices (RSD-FC5L topology) and its corresponding control scheme are designed. Compared with conventional topologies, the RSD-FC5L topology has a lower total …
Learn MoreIn this article, a three-level series resonant switched-capacitor active-fault interface dc/dc converter is proposed. Switched-capacitor modules are applied instead of full-bridge rectification to ...
Learn MoreUse this capacitance converter to convert between common values like nF to uF. Use the chart to look up common capacitor codes. Or use the input fields to convert between picofarad (pF), nanofarads (nF), microfarads (µF), and farads (F).
Learn MoreUse our Capacitance Conversion calculator to convert between the popular capacitance units pF, µF, nF, and F.
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