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AssigneeFestool GmbH
InventorsTobias HOFMANN, Michael THÜRINGER
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A method for braking an electric machine of a power tool. The electric machine is operable by powering stator phase windings of at least three different coils. The method comprises causing application of a transitory voltage on at least one of the coils during a transition time span. The transitory voltage has a polarity configured for generating a current in the at least one of the coils that has the same direction as a current that occurs during subsequent short-circuiting of the at least three stator coils. Subsequently, the at least three stator coils are short-circuited. Furthermore, a data processing apparatus, a computer program, and a computer-readable storage medium are described. Moreover, a use of a transitory voltage is presented. The transitory voltage is applied on at least one stator coil of an electric machine of a power tool when braking the electric machine.
Method for braking an electric machine of a power tool, in particular an electronically commutated electric machine of the power tool, operable by powering stator phase windings of at least three different stator coils, the method comprising:
A use of a transitory voltage applied on a stator phase winding of at least one stator coil of an electric machine of a power tool when braking the electric machine of the power tool, wherein the transitory voltage is applied during a transition time span, and wherein the transitory voltage has a polarity configured for generating a current in the at least one of the coils that has a same direction as a current that occurs during subsequent short-circuiting of the at least three stator coils.
Dependencies are inferred from the claim text.