ELECTRIC DRIVE UNIT FOR AN ELECTRIC HAND-HELD POWER TOOL AND ELECTRIC HAND-HELD POWER TOOL WITH AN ELECTRIC DRIVE UNIT

An electric drive unit for an electric handheld power tool, having an electric motor with a stator winding and a rotor winding, an actuating circuit for actuating the electric motor and a connection unit for coupling an energy source for driving the electric motor, wherein the stator winding is conn...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WISSMACH, Walter, ZHANG, Xiaodong, AUGUSTIN, Christian
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An electric drive unit for an electric handheld power tool, having an electric motor with a stator winding and a rotor winding, an actuating circuit for actuating the electric motor and a connection unit for coupling an energy source for driving the electric motor, wherein the stator winding is connected via a first node to a stator-side first half-bridge including a first semiconductor component and a second semiconductor component and is connected via a second node to the rotor winding, wherein the rotor winding is connected to a third node which is connected via a conductive component to the connection unit, and wherein the actuating circuit includes a third semiconductor component which is connected via the second node to the rotor winding and the stator winding and which is connected via a fourth node directly to the connection unit.