Device For Switching A Direct Current
US-2017011875-A1 · Jan 12, 2017 · US
DC voltage switch
US10937612B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10937612-B2 |
| Application number | US-201716080201-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 6, 2017 |
| Priority date | Feb 29, 2016 |
| Publication date | Mar 2, 2021 |
| Grant date | Mar 2, 2021 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
The invention claimed is: 1. 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. 2. The DC voltage switch as claimed in claim 1 , wherein the voltage source comprises a capacitor. 3. The DC voltage switch as claimed in claim 2 , further comprising the capacitor connected to a device for charging the capacitor. 4. The DC voltage switch as claimed in claim 1 , wherein the mechanical switch has a switching time of less than 5 ms. 5. The DC voltage switch as claimed in claim 1 , wherein the voltage source comprises a DC-link capacitor of a converter. 6. The DC voltage switch as claimed in claim 1 , wherein the voltage source can be connected to a secondary winding of the transformer in both polarities. 7. The DC voltage switch as claimed in claim 6 , further comprising a bridge circuit connected between the secondary side of the transformer and the voltage source. 8. 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. 9. The DC voltage switch as claimed in claim 8 , wherein the voltage source comprises a capacitor. 10. The DC voltage switch as claimed in claim 9 , further comprising the capacitor connected to a device for charging the capacitor. 11. The DC voltage switch as claimed in claim 8 , wherein the mechanical switch has a switching time of less than 5 ms. 12. The DC voltage switch as claimed in claim 8 , wherein the voltage source can be connected to a secondary winding of the transformer in both polarities. 13. The DC voltage switch as claimed in claim 12 , further comprising a bridge circuit connected between the secondary side of the transformer and the voltage source. 14. 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. 15. The DC voltage switch as claimed in claim 14 , wherein the voltage source comprises a capacitor. 16. The DC voltage switch as claimed in claim 15 , further comprising the capacitor connected to a device for charging the capacitor. 17. The DC voltage switch as claimed in claim 14 , wherein the mechanical switch has a switching time of less than 5 ms. 18. The DC voltage switch as claimed in claim 14 , further comprising a switch for short-circuiting a secondary winding of the transformer. 19. The DC voltage switch as claimed in claim 14 , wherein the voltage source comprises a DC-link capacitor of a converter.
Assignees
Inventors
Classifications
for ensuring operation of the switch at a predetermined point in the AC cycle · CPC title
Contacts shunted by static switch means · CPC title
- H01H33/596Primary
for interrupting DC · CPC title
using capacitors, e.g. for the voltage division over the different switches · CPC title
Combined operation of electric switch and variable impedance, e.g. resistor, capacitor (H01H9/061 takes precedence) · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10937612B2 cover?
- 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 wi…
- Who is the assignee on this patent?
- Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification H01H33/596. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 02 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).