Microwave oven and a method for controlling the same
US6335520B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Jan 10, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/666
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a microwave oven comprising a power supply part supplying a commercial alternating current (AC) power, a rectifying and filtering part rectifying and filtering the commercial AC power, a high voltage transformer generating a high voltage by means of direct current (DC) power from the rectifying and filtering part; and a magnetron generating electromagnetic waves based on the high voltage from the high voltage transformer, further comprising a control signal generator part generating a control signal; an inverter part converting the DC power from the rectifying and filtering part into a high voltage AC power based on the control signal from the control signal generator part, and a control part blocking the control signal converted through the inverter part from being applied to the magnetron if the converted control signal is not within a predetermined range. With this configuration, the converted control signal which is not within the predetermined range allowed by the control signal can be prevented from entering into the circuit in advance, thereby stabilizing the circuit and improving the stability of the circuit system more and more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.