Patents
US 12712111 B2: Planar transformers with interleaved windings and high voltage isolation
- Granted
- 2026-08-18
- Filed
- 2022-06-14 application 17839924
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Various embodiments of the present disclosure relate to power conversion using a planar transformer assembly that provides medium-voltage isolation at high frequencies. A planar transformer comprises primary and secondary planar windings configured to generate an isolated output. Each primary and secondary winding is interleaved on layers of a printed circuit board using one or more vias within the layers of the printed circuit board. The planar transformer also comprises a magnetic core and a field-shaping apparatus coupled with the printed circuit board. The field-shaping apparatus is configured to shape an electric field generated by the windings. The primary windings can be coupled to a DC source via switching devices while the secondary windings can be coupled via switching devices to one or more DC ports followed by AC inverters configured to generate three single-phase AC outputs for medium voltage applications.
Source: PTBLXML, file of 2026-08-18 (ipgb20260818.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| The Regents of the University of Colorado, a body corporate 771 patents | US company or organization | Denver, CO | THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE CORP. State business registration FUZZY medium confidence: same name (legal endings aside) and state | PTBLXML, file of 2026-08-18 |
| University of Washington 1,041 patents | US company or organization | Seattle, WA | UNIVERSITY OF WASHINGTON State business registration EXACT high confidence: identical full name and state UNIVERSITY OF WASHINGTON Federal lobbying client EXACT high confidence: identical full name and state UNIVERSITY OF WASHINGTON Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-08-18 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Satyaki Mukherjee | Boulder, CO | PTBLXML, file of 2026-08-18 | ||
| Branko Majmunovic | Boulder, CO | PTBLXML, file of 2026-08-18 | ||
| Dragan Maksimovic | Boulder, CO | 32 | PTBLXML, file of 2026-08-18 | |
| Brian B. Johnson | Seattle, WA | 9 | PTBLXML, file of 2026-08-18 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01F | Magnets; inductances; transformers; selection of materials for their magnetic properties | H01F27/2804 | PTBLXML, file of 2026-08-18 |
| 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 | H02M5/4585 | PTBLXML, file of 2026-08-18 |
| H05K | Printed circuits; casings or constructional details of electric apparatus; manufacture of assemblages of electrical components | H05K1/115 | PTBLXML, file of 2026-08-18 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.