Patent ID: 6433321
Filing Date: 2002-08-13
Classification: H05B

Abstract:
A microwave oven comprising:a magnetron for generating a high frequency in response to a high voltage; a transformer having primary and secondary coils, said transformer generating said high voltage in a turn ratio of said primary and secondary coils and supplying said high voltage to said magnetron; and switching means for adjusting a level of a voltage applied to said primary coil of said transformer; and control means for controlling said switching means, said control means outputting a first power output switching signal where a first allowable current value of a power source is applied to the microwave oven, said control means outputting a second power output switching signal where a second allowable current value of a power source which is higher than said first allowable current value is applied to the microwave oven, whereby said switching means adjust the level of the voltage at a first voltage level in response to said first power output switching signal and adjust the level of the voltage at a second voltage level which is higher than said first voltage level in response to said second power output switching signal.