Door actuator having dual output shaft for air conditioner of automotive vehicles

The present invention relates to a door actuator having a dual output shaft for an air conditioner of a vehicle, which includes a modulated feedback sensor having a hollow and fit to one of two output shafts of an output gear through the hollow for recognizing and controlling a feedback output value without using a circuit board, thereby minimizing deterioration of quality caused by soldering, reducing the number of parts, and minimizing an operational error. The door actuator includes: upper and lower covers ( 100, 120 ) coupled with each other; a motor ( 140 ) mounted inside the coupled upper and lower covers; an output gear ( 160 ) connected to a driving gear ( 142 ) mounted on a shaft of the motor through an array of reduction gears ( 150 ), the output gear ( 160 ) having a pair of output shafts ( 162, 164 ) formed on both sides thereof and drawn out through the upper and lower covers; and a modulated feedback sensor ( 170 ) having a hollow ( 172 ) and fit to one of the output shafts for recognizing and controlling a feedback output value according to a rotation of the output gear.