Electromagnetically heated cooking utensil, and heating control circuit and method therefor
US11751292B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 16, 2018 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Dec 26, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electromagnetically heated cooking utensil, and a heating control circuit and method therefor. The heating control circuit includes a first resonance device; a second resonance device; a first power switch; a second power switch; a first synchronization device that detects voltages of both ends of the first resonance device to output a first synchronization signal; a second synchronization device that detects voltages of both ends of the second resonance device to output a second synchronization signal; and a control device that selects, according to the heating mode of the electromagnetically heated cooking utensil, the first synchronization signal to generate a driving signal for driving the first power switch, a second synchronization signal to generate a driving signal for driving the second power switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.