Microwave oven having a fan motor rotation control function

摘要: A microwave oven having a fan motor rotation control function comprising an absolute humidity sensor for sensing the inside oven, discharging water vapor externally, microprocessor and keyboard. The improved further comprises phototriac connected between said supplying line of AC power source controlling supplied to in accordance with plurality signals from zero crossing signal generating circuit detecting point voltage during constant cycle generate predetermined width pulse at applying microprocessor. is adapted inputting outputting response command keyboard output sensor. Therefore, according present invention can freely adjust number rotations menu dish, thereby enabling be correctly sensed.