| 摘要 |
PURPOSE: A control circuit of a microwave oven is provided to effectively cook foods by setting a various kinds of cooking patterns. CONSTITUTION: A control circuit of a microwave oven comprises a control section(100) for generating a control signal according to cooking patterns. A phase angle control section(300) is provided to adjust the phase angle of an alternative voltage according to the control signal of the control section(100). A halogen heater section is provided to emit the heat by receiving the voltage from the phase angle control section(300). The phase angle control section(300) includes the first TRIAC(331) for control the current based on the control signal, the first condenser(333) for charging/discharging the voltage applied from the first TRIAC(331), and the second TRIAC(332) for controlling the phase angle of the alternative current.
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