Microwave oven
First Claim
Patent Images
1. A microwave oven comprising:
- a high voltage transformer having a high voltage line;
a magnetron filter box connected to the high voltage line and comprises a magnetron and a filter circuit; and
a direct current (DC) power supply unit which supplies DC power to the magnetron so as to suppress noise induced in the high voltage line.
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Abstract
A microwave oven includes a direct current (DC) power supply unit which supplies DC power to a magnetron so as to suppress noise induced in a high voltage line. The DC power supply unit includes at least one rectifying diode and a choke coil. The rectifying diode rectifies high frequency alternating current (AC) power generated by a heater coil into the DC power to suppress noise induced in the high voltage line of a high voltage transformer. The choke coil forms ripples in the DC power and effectively prevents a moding of the magnetron, which is generated where a constant DC voltage is supplied.
9 Citations
20 Claims
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1. A microwave oven comprising:
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a high voltage transformer having a high voltage line;
a magnetron filter box connected to the high voltage line and comprises a magnetron and a filter circuit; and
a direct current (DC) power supply unit which supplies DC power to the magnetron so as to suppress noise induced in the high voltage line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A microwave oven comprising:
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a magnetron;
a high voltage transformer; and
a direct current (DC) power supply unit, wherein the DC power supply unit supplies DC power to the magnetron so as to suppress noise induced in a high voltage line of the high voltage transformer. - View Dependent Claims (19, 20)
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Specification