Switching device
AssigneeEnglish Electric Valve Company Limited
InventorsLeslie J. Kettle, Barry P. Newton
Life of this patent
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Abstract
A switch device comprising at least two switches (12, 13) connected in parallel in a first electric path; a timing device (3) for feeding at a required time, a switching impulse along a second electric path to the switches thereby switching at least one of them (12) to a conductive state so that current flows along the first path; and a transformer (18) having a primary (20) in the said first path and a secondary (17) in the said second path arranged so that the aforementioned current induces a further switching impulse or reinforces the first switching impulse thereby switching or assisting the switching of the other switch (13) to a conductive state.
Claims4
A switch device comprising:
- two switches connected in parallel in a first electric path;
- a timing device for feeding at a required time a switching impulse along a second electric path to said switches thereby switching at least one of them to a conductive state so that current flows along the first path;
- and a transformer having a primary in said first path and a secondary in said second path;
- said transformer, said switches and said timing device being interconnected for causing the current flow created by switching of one of said switches to induce a further switching impulse or to reinforce the first-recited switching impulse thereby switching or assisting the switching of the other switch to a conductive state.
Dependencies are inferred from the claim text.