Flux Converter with Power Factor Correction
AssigneeSiemens Aktiengesellschaft
InventorChristian Augesky
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Abstract
A flux converter for converting an input-side alternating current into an output-side DC current, wherein a power factor correction is provided and the flux converter comprises a transformer having at least two serially arranged primary windings and a secondary winding wound in same direction. In addition, a first switch is used to switch a storage capacitor in series with a first primary winding to the alternating current in a clocked manner via rectification elements and a second primary winding can be switched to the storage capacitor in a clocked manner by a second switch.
Claims16
-12. (canceled)
A flux converter for converting an input-side AC voltage into an output-side DC voltage to provide a power factor correction, comprising:
- a transformer having at least two serially arranged primary windings;
- a secondary winding wound in a same direction as the plurality of serially arranged primary windings;
- a storage capacitor in series with a first primary winding of the plurality of serially arranged primary windings;
- a first switch for switching the storage capacitor to the input-side AC voltage through rectification elements in a clocked manner;
- and
- a second switch for switching a second primary winding of the plurality of serially arranged primary windings to the storage capacitor in a clocked manner.
A method for operating a flux converter for converting an input-side AC voltage into an output-side DC voltage to provide a power factor correction comprising a transformer having a plurality of serially arranged primary windings, a secondary winding wound in a same direction as the plurality of serially arranged primary windings, a storage capacitor in series with a first primary winding of the at plurality of serially arranged primary windings, a first switch for switching the storage capacitor to the input-side AC voltage in a clocked manner by rectification elements and a second switch for switching a second primary winding of the plurality of serially arranged primary windings to the storage capacitor in a clocked manner, the method comprising:
- transferring, through a first primary winding of the at least two primary windings, electrical energy introduced on the input-side to a secondary side of the flux converter in a first conducting phase of a work cycle and storing the transferred energy in the storage capacitor;
- and
- transferring, through a second primary winding of the plurality of primary windings, electrical energy from the storage capacitor to the secondary side of the flux converter in a second conducting phase.
Dependencies are inferred from the claim text.