Single-Phase Common-Ground Dual-Buck Inverters With No Leakage Current
Bibliographic record
Abstract
This article presents two unique common-ground high-reliability dual-buck single-phase inverters suitable for photovoltaic applications. The proposed inverters directly connect the source and load, excluding the inverters from leakage current. The first proposed inverter works only for unity power factor operation. In its operation, the inverter employs only one high-frequency switching device, thus presenting low switching losses and improving overall efficiency. The second proposed inverter works for any power factor. In its operation, the inverter utilizes two high-frequency switching devices, resulting in minimal switching losses. The proposed inverters have no reverse recovery loss and related issues since the body diodes of the power metal–oxide–semiconductor field-effect transistors are disabled. The proposed inverters are devoid of short-circuit issues, resulting in high reliability. The detailed modes and operating principles together with the pulsewidth-modulated strategy for the proposed inverters are described. Experiments were carried out on 0.6-kW laboratory prototypes, operating at a switching frequency of 50 kHz and an output voltage of 110 Vrms. The experimental results verified the robustness of the proposed inverters.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".