Induction heating cooker operated at a constant oscillation frequency
US5571438A · kind A · utility
14Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Mar 13, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/538
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a switching device of an induction heating cooker, an oppositely poled diode for conducting a reverse current is coupled across the collector-emitter portion of a switching element provided in the first switching device, and turn-ON operation of the switching devices does not OCCUR in normal operation of the DUTY FACTOR T.sub.2 /T.sub.1 .apprxeq.0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.