ELECTRICAL SWITCHING SYSTEM FOR DYNAMO-ELECTRIC MACHINE AND ELECTRIC TOOL PROVIDED FROM ELECTRICAL SWITCHING FOR DYNAMO-ELECTRIC MACHINE

摘要

"electrical switching system for dynamo-electric machine and power tool provided with electrical switching system for dynamo-electric machine". An electrical switching system for a dynamo-electric machine is revealed, as well as the application of said system in electric tools, capable of changing the topology of a universal electric motor (integrated by an rotor with an induced coil and a stator with two field coils) only as a function of the position of two solidary electric switches. Thus, a suitable topology for energizing the 127 volt universal electric motor and a suitable topology for energizing the 220 volt universal electric motor are provided.