Contactless trigger with rotational magnetic sensor for a power tool

A method for controlling an output of an electric power tool, the method comprising:

• actuating a trigger shoe of the electric power tool in a first linear direction;
• converting linear movement of the movable plunger into a rotational movement of a movable arm in a first rotational direction;
• rotating an annular magnet coupled to the movable arm in the first rotational direction;
• sensing a parameter of a magnetic field generated by the annular magnet at a first magnetic sensor;
• and
• controlling, via the controller, the output of the electric power tool based on the sensed parameter.

A trigger assembly, comprising:

• a trigger assembly including:
• a housing;
• a selector disposed on a surface of the housing;
• a pin including a first end that is engageable with the selector and a second end that is coupled to a selector magnet;
• and
• a selector sensor configured to sense a magnetic field of the selector magnet,
• wherein axial motion of the selector rotates the selector magnet and alters the magnetic field sensed by the sensor.