Patents
US 12512763 B2: High-bandwidth control of unfolding-based AC-DC converters
- Granted
- 2025-12-30
- Filed
- 2024-12-12 application 18979388
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An apparatus includes an unfolder with three input terminals connected to a three-phase AC power source and three output terminals, p-terminal, o-terminal, and n-terminal, and a three-port converter connected to the unfolder and feeding a direct current (“DC”) load. The three-port converter includes input capacitors. A feedback control loop includes outputs of a p-terminal modulation index derived from a difference between p-terminal current and a p-terminal reference current and an n-terminal modulation index derived from a difference between n-terminal current and an n-terminal reference current. A feedforward control loop outputs an emulated p-terminal current and an emulated n-terminal current derived from differences between DC-link voltages and ideal DC-link voltages. A duty cycle controller is configured to generate duty cycles controlling switches of the three-port converter derived from the modulation indexes and the emulated currents.
Source: PVGPATDIS, file of 2026-04-10 (ipg251230.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Utah State University 160 patents | US company or organization | Logan, UT | Utah State University College or university EXACT high confidence: identical full name and state UTAH STATE UNIVERSITY Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Aditya Zade | Logan, UT | 1 | PVGPATDIS, file of 2026-04-10 | |
| Shubhangi Gurudiwan | Logan, UT | 1 | PVGPATDIS, file of 2026-04-10 | |
| Bryce L. Hesterman | Providence, UT | 6 | PVGPATDIS, file of 2026-04-10 | |
| Regan A. Zane | Hyde Park, UT | 40 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02M | Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation thereof | H02M3/33573 | PVGPATDIS, file of 2026-04-10 |
| H02J | Electric power networks; circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy | H02J50/12 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-03-18 | Government interest Confirmatory license | UTAH STATE UNIVERSITY signed 2024-12-13 | UNITED STATES DEPARTMENT OF ENERGY WASHINGTON, DC | 70539/83 | ECORSEXC, file of 2026-09-25 |
| 2024-12-13 | Assignment Assignment of assignor's interest | GURUDIWAN, SHUBHANGI signed 2024-05-07 ZADE, ADITYA signed 2024-05-07 ZANE, REGAN A. signed 2024-05-07 HESTERMAN, BRYCE signed 2024-05-09 | UTAH STATE UNIVERSITY LOGAN, UT | 69580/391 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.