Patents
US 12706451 B2: Hybrid circuit breaker using a transient commutation current injector circuit
- Granted
- 2026-08-11
- Filed
- 2024-07-22 application 18779554
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A circuit breaker and method of operation. The circuit breaker includes a first current path including a mechanical switch, such as an ultrafast mechanical switch, and a second current path in parallel connection to the first current path, and including a current injector, such as a transient commutation current injection circuit, in series with bidirectional power electronic switch. A short circuit fault current from a mechanical switch path is communicated to the electronic path via a current injection, followed by interrupting the fault current. A pulse current is generated to the electronic switch in the second current path, and the mechanical switch is opened during the pulse current. The pulse current and the electronic switch reduce or eliminate arcing upon the opening the mechanical switch.
Source: PTBLXML, file of 2026-08-11 (ipgb20260811.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ILLINOIS INSTITUTE OF TECHNOLOGY 82 patents | US company or organization | Chicago, IL | Illinois Institute of Technology College or university EXACT high confidence: identical full name and state ILLINOIS INSTITUTE OF TECHNOLOGY Federal lobbying client EXACT high confidence: identical full name and state ILLINOIS INSTITUTE OF TECHNOLOGY Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-08-11 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Zheng John Shen | Chicago, IL | PTBLXML, file of 2026-08-11 | ||
| Yuanfeng Zhou | Chicago, IL | 5 | PTBLXML, file of 2026-08-11 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02H | Emergency protective circuit arrangements | H02H3/087 | PTBLXML, file of 2026-08-11 |
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.