Control and power module for brushless motor

A power tool comprising:

• a tool housing;
• an electric motor disposed within the tool housing and having a longitudinal axis;
• a power module comprising:
• a module housing having a radial portion disposed adjacent the electric motor and a cylindrical portion extending from the radial portion away from the electric motor and defining an open end opposite the radial portion;
• a printed circuit board (PCB) received within the module housing through the open end thereof, the PCB being substantially disc-shaped and including a first surface and a second surface;
• a plurality of power switches mounted on at least one of the first surface and/or the second surface of the PCB;
• and
• a plurality of magnetic sensors mounted on the first surface of the PCB facing the motor substantially equidistantly from a center of the PCB;
• wherein the module housing includes a plurality of openings disposed in the radial portion angularly around a center of the module housing to receive the plurality of magnetic sensors therein to allow the plurality of magnetic sensors to magnetically interface with the electric motor.