| 摘要 |
TO ALL WHOM IT MAY CONCERN: BE IT KNOWN that I, VICTOR A. K. TEMPLE, a citizen of Canada, residing in the city of Clifton Park, county of Saratoga, state of New York, have invented certain new and useful improvements in a THYRISTOR WITH VOLTAGE BREAKOVER CURRENT CONTROL AND METHOD of which the following is the specification. A thyristor of the type having a localized voltage breakover region is provided with current limiting means for controlling the current through the device during initial voltage breakover. The thyristor base zone is divided into two at least partially separated base portions, one of which is in the vicinity of the localized breakover region. The other base portion is in the main current-carrying part of the thyristor in contact with the main emitter. The two base portions are electrically connected by current limiting means. When breakover occurs by way of a forward anode-cathode voltage which exceeds the thyristor forward breakover voltage, the rise in current is limited by the current limiting means. |
