Robert Boschgmbh

Illia Manushyn

Guido Albert Rasek

Jochen Wessner

The invention relates to a method () for operating an inverter () which selectively connects each of three alternating current phases (U, V, W) of an inductive load () to the plus pole or minus pole of a direct current () provided at the input () of the inverter () by actuating switching elements (-) arranged in three half bridges (-), wherein the switch states of the switching elements (-) are modified () by a rotating space vector modulation. Additionally, in the event of a modulation between space vectors (-) which have the same switch element () switch states with respect to at least one half bridge (-), such a half bridge (-) remains completely deactivated ().

Actuating three-phase inductive loads in the partial-load operating mode with reduced inverter switching losses

The invention relates to a circuit device () for reducing common-mode interference of a power converter (), the power converter () forming a common-mode interference source during operation. The circuit device () comprises at least one short-circuited additional line (), which can be coupled to an input () and an output () of the power converter (). The additional line () conducts the interference currents produced by the common-mode interference source and returns said interference currents to the common-mode interference source.

Circuit device for reducing common-mode interference of a power converter

The present invention provides an electrical filter device () for filtering a common-mode interference between a current source and a load, comprising:&#x2014;a signal input (E), which comprises at least one first terminal (E1) and can be connected to the current source; &#x2014;a signal output (A), which can be connected to the load; &#x2014;a main stage (H), having a first main inductor (), which comprises a coil with a first core (), the first main inductor () being connected to the first terminal (E1); and&#x2014;an auxiliary stage (H), having at least one first anti-interference capacitor (C) and one first auxiliary inductor (), the first auxiliary inductor () being connected between the first terminal (E1) and the first anti-interference capacitor (C), the first auxiliary inductor () being inductively coupled to the first main inductor ().

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Marbach am Neckar, Germany

Illia Manushyn