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Exponential Flying Capacitor Converter

2022· article· en· W4286569456 on OpenAlexaff
Duo Li, Gianluca Roberts, Aleksandar Prodić

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAdvanced DC-DC Converters
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsCapacitorTopology (electrical circuits)InductanceNetwork topologyVoltageCapacitive sensingSwitched capacitorExponential functionElectrical engineeringDecoupling capacitorInductorCapacitanceControl theory (sociology)PhysicsElectronic engineeringComputer scienceEngineeringMathematicsMathematical analysis

Abstract

fetched live from OpenAlex

A novel flying capacitor (FC)-based dc-dc converter topology is introduced. This aptly named Exponential Flying Capacitor (EFC) topology achieves an exponential, rather than linear, decline in flying capacitor voltages when compared against the conventional multi-level flying capacitor (MLFC) topology. Such an abrupt drop in FC voltages not only significantly reduces the total operational flying capacitive energy storage/volume, but additionally permits the use of a smaller output filter inductance relative to the conventional MLFC when both topologies are paired equally with more than 3 FCs. This paper describes the structure and operation of the EFC topology, as well as further elaborates on the comparisons between the conventional MLFC. Finally, the potential advantages of the EFC are experimentally verified using a 3-FC, 48 V to 5 V / 3.3 V / 1.0 V (1.0 A) discrete converter prototype running at a 12.5 kHz switching frequency. At these stated operating levels, the 3-FC EFC requires an in-ductor that is up to 3 times smaller compared to the conventional 5-level (3-FC) MLFC.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.007
Threshold uncertainty score0.023

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0070.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.173
Teacher spread0.166 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2022
Admission routes1
Has abstractyes

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