A Novel Phase Shift Control for Single-Stage Bidirectional Isolated Totem-Pole AC/DC Onboard Electric Vehicle Chargers
Bibliographic record
Abstract
Single-stage onboard chargers (OBCs) integrate the two control functions traditionally implemented in two separate stages for power factor correction (PFC) and DC voltage regulation. This integration improves the power density of the system while increasing the control complexity. Traditional phase shift (PS) control, widely applied to two-stage OBCs due to its simplicity, is challenging for single-stage OBCs structure. This paper proposed a compact single-stage bidirectional isolated totempole AC/DC topology with inherent PFC. A novel sinusoidal phase shift control for the proposed topology is presented to achieve high efficiency of up to 96.9% with a high power factor and simple control implementation under a wide output voltage range. A 6 kW SiC-based high-frequency prototype with the global specification is designed. Experimental results verify the expected operation of the proposed structure.
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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) | 0.000 | 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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 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".