 
 <prompt> How PM motor dey different from other motors? Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```One PM motor no get field winding for the stator frame, instead e dey rely on PMs to provide the magnetic field wey the rotor field go interact with to produce torque. Compensating windings wey dey in series with the armature fit dey used for large motors to improve commutation under load. Because this field no fit adjust for speed control. PM fields (stators) dey handy for miniature motors to eliminate the power wey the field winding dey consume. Most larger DC motors na "dynamo" type, wey get stator windings. Historically, PMs no fit retain high flux if dem disassemble; field windings dey more practical to get the needed amount of flux. However, large PMs dey expensive, as well as dangerous and difficult to assemble; this one dey favor wound fields for large machines.``` 