Patent ID: 7971613

Claim:
A woodworking machine comprising: a cutting tool adapted to move to cut a workpiece; a motor configured to move the cutting tool; a motor control circuit adapted to selectively power the motor, where the motor control circuit includes a start/stop switch to allow a user to turn the motor on and off; a safety system configured to detect a dangerous condition between the user and the cutting tool and to perform a predetermined action upon detection of the dangerous condition to mitigate the dangerous condition; a power supply configured to provide power to at least a portion of the safety system; a main power switch configured to control delivery of power to the power supply and to at least a portion of the motor control circuit by allowing a user to turn the main power switch on and off; and a power control system associated with the start/stop switch and the main power switch and configured to prevent the interruption of power to the power supply if the main power switch is turned off while the cutting tool is moving.