There are many products that onsemi manufactures that are used in an air conditioning system. In addition to the motor drivers, there are touch sensors, microcontrollers, memory, and power conditioning products. The motor drivers of this presentation can be found in the colorful blocks of this slide. In the indoor unit, the auto filter cleaning motors are stepper motors, while the louver positioning motor can also be a forward reverse brush motor. The fans in the new efficient models are variable speed three phase brushless motors. Finally, the outdoor unit usually has a highly efficient three phase brushless motor that runs the fan that blows on the coils.