Method for actuating a polyphase machine
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United States of America Patent
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Mar 28, 2017
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May 11, 2012
filing date -
May 30, 2011
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Abstract
A method is described for activating a multiphase machine that has a link circuit equipped with a link circuit capacitor, phase windings, and one high-side switch and one low-side switch per phase. The switches associated with the individual phases have control signals applied to them by a control unit. The control unit provides, in successive activation cycles, pulse-shaped control signals for the switches, the pulse widths and pulse onsets of which are respectively varied within an activation cycle in such a way that the link circuit current is reduced.
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