What applications are universal motors commonly used for?

Universal motors are designed to operate on both AC and DC power, which makes them particularly versatile and suitable for specific applications. They are commonly used in household appliances and power tools that require a high starting torque and variable speed, such as mixers, vacuum cleaners, and hand-held power tools. Their ability to provide high speed and torque in a compact size makes them ideal for these applications. The design also allows them to operate efficiently across different voltage levels, a feature that is beneficial in portable and small devices.

In contrast, applications like industrial machinery and HVAC systems generally call for motors that can handle larger loads and require more efficient operation at specific voltages, often favoring induction motors or other types that are more suitable for constant speed operation under varied conditions. Similarly, residential lighting systems typically utilize different types of fixtures and ballasts that are not aligned with the benefits offered by universal motors. Therefore, the use of universal motors is most appropriate in the context of appliances that benefit from their unique operational capabilities, particularly in mixers and some power tools.