Patent ID: 6974061

Claim:
A control module for a hand tool powered by DC power having a rotary member; comprising: a target speed adjustment circuit operable to electronically communicate a target speed signal, wherein said target speed signal represents a target speed for the rotary member; a speed sensor circuit operable to electronically communicate a rotary speed signal, wherein said rotary speed signal represents a rotary speed of the rotary member, wherein said rotary speed is determined by a sensor; a trigger circuit electronically operable to communicate a trigger signal, wherein said trigger signal represents engagement of a trigger by a user; and a controller having a plurality of inputs and outputs; wherein the inputs of the controller comprise input signals comprising the target speed signal, the rotary speed signal, and the trigger signal; wherein the controller is operably configured to command the rotary member with electronic communication of a first command signal in response to a function comprising a first function of the input signals.