DC voltage switch
AssigneeSiemens Aktiengesellschaft
InventorJürgen Rupp
Life of this patent
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Abstract
Various embodiments may include a voltage switch having two terminals linked by an operating current path comprising a mechanical switch, and having means of generating a counter voltage to the voltage in the operating path. In some embodiments, there are: two terminals linked by an operating current path comprising a mechanical switch; a transformer having a primary side connected in series with the mechanical switch in the operating current path; a voltage source connected to a secondary side of the transformer; and a switch connected in series with the voltage source.
Claims19
A DC voltage switch comprising:
- two terminals linked by an operating current path comprising a mechanical switch;
- a transformer having a primary side connected in series with the mechanical switch in the operating current path;
- a voltage source connected to a secondary side of the transformer;
- a switch connected in series with the voltage source;
- and
- a switch for short-circuiting a secondary winding of the transformer.
A DC voltage switch comprising:
- two terminals linked by an operating current path comprising a mechanical switch;
- a transformer having a primary side connected in series with the mechanical switch in the operating current path;
- a voltage source connected to a secondary side of the transformer;
- and
- a switch connected in series with the voltage source;
- wherein the voltage source comprises a DC-link capacitor of a converter.
A DC voltage switch comprising:
- two terminals linked by an operating current path comprising a mechanical switch;
- a transformer having a primary side connected in series with the mechanical switch in the operating current path;
- a voltage source connected to a secondary side of the transformer;
- a switch connected in series with the voltage source;
- and
- a bridge circuit connected between the secondary side of the transformer and the voltage source;
- wherein the voltage source can be connected to a secondary winding of the transformer in both polarities.
Dependencies are inferred from the claim text.