| 摘要 |
A microcontroller for controlling operation of a safety clutch of a handheld electrical power tool and which is arranged in a force transmitting chain of the tool, with the microcontroller including a unit (2,5,4;8) for processing at least one parameter of the power tool and for outputting a resulting parameter in form of a calculated torque (M1), and a control unit (7) for comparing an actually measured torque (M) with the calculated torque (M1), and for outputting a control signal (theta) when a difference between the actually measured and calculated torques exceeds a predetermined threshold.
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