A Dynamic Solution to Spatial Misalignment in Strongly Coupled Magnetic Resonance Wireless Power Transfer Systems
Bibliographic record
Abstract
Spatial misalignment is the leading cause of power transfer efficiency loss in a wireless power system; the misalignment causes the magnetic coupling of the system to change, resulting in a non-optimal load impedance. This research work presents the design and evaluation of an adaptive, near-field transmitter that can maintain the system efficiency when spatial misalignment occurs. The design consists of a power amplifier, a directional coupler, a tuneable impedance matching network, a gain-phase detector, and a microcontroller. An algorithm was created to determine the varying load impedance; another modified the configuration of the tuneable matching network for one that can match to the new load impedance. The developed class EF 2 power amplifier delivered 7.5 W of power to the load, with a drain efficiency of 82.4%, at 13.56 MHz. The adaptive transmitter prototype maintained an average of 55% system efficiency for a separation distance of 1.5 cm to 3 cm.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 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".