Patent ID: 8353362

Claim:
A hand-held power tool comprising: a device housing; at least one grip disposed on said device housing; an electric drive motor arranged in said device housing; an output connected to said electric motor for operating a working tool; a battery pack providing direct current as electric energy for operating said electric drive motor an electronic control unit that is connected through a power circuit to said electric drive motor and is further connected to said battery pack; an operating element disposed on said at least one grip for controlling said electric drive motor; an electric actuator acted upon by said operating element, wherein said electric actuator generates an output signal that is dependent on a position of said electric actuator, the position of said electric actuator dependent on a position of said operating element, wherein the output signal is supplied through a control line to said electronic control unit; wherein said electronic control unit supplies to said electric drive motor the direct current of said battery pack as a pulse width-modulated signal sequence based on the position of said electric actuator; wherein a period duration of the pulse-width modulated signal sequence is composed of a voltage signal with a signal duration and of a signal pause with a pause duration, wherein, with the period duration remaining the same, the signal duration is varied by said electronic control unit as a function of the position of said electric actuator so that the electric energy that is applied to said electric drive motor by said electronic control unit is applied as a function of the position of said operating element, wherein in a first dead travel range of said operating element that adjoins an inoperative position of said operating element the supplied electric energy is zero; wherein upon passing from said first dead travel range to an adjoining second travel range, the pulse width of the signal sequence jumps from zero to a predetermined start value.