A new high power factor, soft-switched LED driver without electrolytic capacitors
Bibliographic record
Abstract
A novel high power factor, soft-switched Light Emitting Diode (LED) driver without electrolytic capacitors is proposed in this paper. Conventional electrolytic capacitors used in LED drivers as the energy storage element have relatively short lifespan and affect the lifetime of the entire LED lighting system. In the proposed design, coupled inductors are used to provide power factor correction (PFC) and to provide part of the required energy with the DC-link capacitor to the output. As a result, low ripple output current is still achieved even when the size of the DC-link capacitor is reduced, which allows the film capacitor to be used to replace the conventional unreliable electrolytic capacitor. At the same time, high input power factor is also achieved. The operating principles and theoretical analysis of the proposed circuit will be described in this paper. An experimental prototype is built and tested in the laboratory. All the experimental results are provided to support the merits of the proposed work.
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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.005 | 0.002 |
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; both teacher heads agree on what is shown here.
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".