Concealed electrical door operator

A door assembly comprising:

• a first door skin;
• a second door skin spaced apart from the first door skin;
• a door operator disposed between the first door skin and the second door skin;
• and
• an arm extending from the door operator,
• wherein said door operator comprises:
• a motor moving the arm to move the door between a closed position and an open position and between the open position and the closed position,
• a current sensor generating a current signal corresponding to a current to the motor;
• a position sensor in communication with the arm generating a position signal corresponding to the position of the door relative to a door frame;
• a controller communicating with the current sensor, the position sensor and the motor, said controller controlling a motor current to the motor in response to the current signal and the position signal, and
• wherein the controller increases the motor current to obtain a predetermined movement speed,
• the door operator further comprising a gear set, and a belt drive in communication with the motor and gear set, said gear set operating the arm in response to the belt drive, and
• the gear set comprises a planetary gear set.