An active-clamping resonant flyback DC/DC converter with improved output power transfer
Bibliographic record
Abstract
In this paper, an active-clamping resonant flyback (ACRF) DC/DC converter is proposed. Two switches at the primary side of a single transformer are operated with pulse width modulation (PWM) at zero voltage switching (ZVS) turn-on condition during the dead time between switching instants. On the secondary side of the transformer, two series-resonant circuits are connected to the load through a half bridge rectifying stage, in which the diodes are operated at zero current switching (ZCS) condition. The two series-resonant circuits provide power transfer to the output load in both positive and negative cycles of operation, resulting in increased output power transfer without using additional switching devices or techniques such as interleaving. The extended describing function procedure is used to develop the steady state and small signal analyses of the proposed converter. Frequency domain analysis is then employed to derive transfer functions for small signal variations of the converter variables. The results are used to develop a single-loop, voltage-feedback control scheme to regulate the output voltage. It is demonstrated that the circuit provides two degrees of freedom to regulate the output voltage through duty ratio and switching frequency control. It is also shown that a single-loop, voltage-feedback control scheme is effective in regulating the output voltage.
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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) | 0.000 | 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 | 0.001 |
| 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 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".