Microwave oven with improved microwave power control
US4990733A · kind A · utility
4Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Feb 2, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/687
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A microwave oven for heating food, in which power control is by pulsing a microwave source during a sequence of operation periods. The start moment of the microwave source is sensed during each operation period, and the switch on time of the microwave source during each operation period is calculated from the sensed start moment. Start moment related variations in supplied average power level are eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.