Electric grill with current protection circuitry
US11622420B2 · kind B2 · utility
4Cited by
40References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2019 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Nov 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an apparatus and method for protecting against unsafe electric current conditions. A protections circuit may be used in a device, such as an electric grill, that has one or more electric loads, such as heating elements. The protection circuit may protect against various failure scenarios, including, without limitation, instances of ground fault, over current, driver failure, and failure of a microprocessor. In response to a failure, the protection circuit may trip a latch relay or disable a triac driver to stop current from flowing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.