Self-test mechanisms for end-of-life detection and response for circuit interrupter devices
US12368015B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jan 24, 2023 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Jan 24, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for a circuit interrupter is provided. The circuit may in include a first SCR configured to receive a first trigger signal at a gate of the first SCR, a second SCR configured to receive a second trigger signal at a gate of the second SCR, and a third SCR configured to receive a third trigger signal at a gate of the third SCR. A cathode of the first SCR may be connected to an anode of the third SCR. A cathode of the second SCR and a cathode of the third SCR may be connected to a ground. Methods of operating a circuit interrupter and a circuit are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.