Microwave oven
US6335519B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2001 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Jan 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/687
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a microwave oven, including a power supply part supplying a commercial AC power, a rectifier and filter part rectifying and filtering the commercial AC power, a high voltage transformer generating a high voltage with the DC power from said rectifier and filter part, a magnetron generating electromagnetic waves by the high voltage supplied from said high voltage transformer. The microwave oven further includes a control signal generator part generating a control signal; an inverter part converting the DC power supplied from said rectifier and filter part into an AC power with a high voltage; and a control part determining whether said control signal converted by said high voltage transformer is within a predetermined range, and preventing said control signal from being applied to said magnetron where the control signal is determined to be beyond the predetermined range. With this configuration, abnormal control signal is controlled, thereby being capable of more securely protecting a circuit system of the microwave oven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.