High‐efficiency wireless power transfer system for 3D, unstationary free‐positioning and multi‐object charging
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Wireless power transfer (WPT) has become increasingly widespread in recent years, ranging from electric vehicles, portable consumer electronics, and implantable biomedical devices to flexible/stretchable electronics. The authors here present a WPT system based on the maximum efficiency design principle. Utilising the properties of Helmholtz coils, a near‐uniform 3D volume electromagnetic field is generated making it possible to transfer power to multiple devices simultaneously with no requirement of orientation and/or alignment. The system can also provide continuous wireless power to multiple devices even when they are moving, with an efficiency of up to 87%. An automatic frequency tracing technique was developed to compensate for the resonant frequency shifting issue encountered when the number of loadings changes. Meanwhile, a multi‐load decoupling control system was also developed, such that each secondary coil receives consistent energy without being affected by the addition or removal of another receiving coil(s). As a proof of concept, the authors successfully charged various numbers of mobile phones simultaneously and transmitted power to single/multiple moving devices wirelessly.
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.
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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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 it