![]() ![]() Similarly, the outdoor fan used is DC fan instead of the conventional AC fan. ![]() In many ductless split DC inverter design, the indoor fan used is DC fan instead of AC fan. Its usage is no longer confined to air conditioner equipment but also in refrigerators, washing machines, pumps and fans. Hence, the main advantages of a DC brushless motor compressor is its quiet operation, compact, longer life time, energy saving and better capacity control which translates to a more comfortable environment for the peoples using the equipment. This type of motor is being used in more design due to its better reliability and energy efficiency. ![]() Various protection and monitoring circuits are built into the electronic controls to ensure efficiency and reliability. The windings of the motor are connected to the power electronics control that determine the speed of the motor by the use of micro controller. There are no brushes and commutator compared to typical DC motor hence eliminating concerns such as sparks, brush life, brush residue and electrical noise. In a DC brushless motor used in the DC inverter air conditioner or heatpump, the rotor of the motor is constructed using permanent magnets with windings on the stator. ![]()
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