Synchronous Rectification for High-Speed Resonant Wireless Power Transfer Under Variable Coupling and Load
Bibliographic record
Abstract
A synchronous rectifier (SR) for efficient and compact wireless power transfer (WPT) in applications involving variable coupling, variable load, and lower voltages, e.g., 60 V or less, is presented. The proposed SR employs the load-independent class E topology and a relatively simple synchronization circuit based on a tuned delay line. Analytical, simulation, and experimental results are presented for SRs implemented in resonant capacitive power transfer systems operating at 13.56 and 27.12 MHz. Both systems exhibit load independence over transmission distance variations of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\pm$</tex-math></inline-formula> 25% from nominal. At 13.56 MHz, 300 W is delivered with a dc-to-dc efficiency of approximately 81% at nominal coupling, which translates to an SR efficiency of 93%, and the system can deliver 220 W over the full coupling range. At 27.12 MHz, 150 W is delivered at a dc-to-dc efficiency of approximately 76% at nominal coupling, translating to an SR efficiency of 89%, and 110 W can be delivered over the full coupling range. The performance of the proposed SR for resonant WPT applications is very encouraging, particularly at 27.12 MHz.
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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".