Design and Analysis of Four-Plate Capacitive Couplers for Wireless Charging Systems
Bibliographic record
Abstract
Capacitive power transfer (CPT) systems have become a popular alternative to inductive power transfer (IPT) systems owing to their unique features such as better misalignment tolerance, relatively inexpensive, and lightweight. However, the main concern with CPT is the low coupling capacitance (typically pico farads (pF) range) between transmitter and receiver plates due to the natural low permittivity in air. Consequently, the power transfer capability is limited, which makes CPT systems unsuitable for high-power large air gap applications. This paper investigates a new four-plate coupler structure with a dielectric medium on the transmitter and receiver plates. The proposed design of the CPT coupler increases the coupling coefficient and improves the power density of the coupler with a better misalignment tolerance. The effectiveness of the proposed CPT coupler is validated through ANSYS-Maxwell simulations. Furthermore, its performance is compared with other configurations in terms of electric field emissions, misalignment tolerance, and coupling capacitance values at a constant excitation.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".