A 5 kW utility-interactive inverter operating at high frequency and using zero current turn off COMFET switches
Bibliographic record
Abstract
The design of a 5 kW utility-interactive high-performance series resonant inverter is described. The inverter operates in an inaudible frequency range (20 kHz-100 kHz) and in the quasi-resonant mode. The results of an analytical study of the inverter show that, in this mode of operation, the inverter output characteristics are of the current-source type independent of the output voltage of the AC utility. The inverter uses turn-on controllable COMFET switches in the soft commutation mode and does not require snubber circuits. This converter combines the advantages of working at high frequency (less weight, small reactive filters, and absence of low-frequency transformer) and of using resonant links that allow the use of zero-current turn-off switches. Some of the experimental and simulation results obtained on a 2.5 kW-capacity laboratory prototype are presented.>
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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) | 0.004 | 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".