| 摘要 |
852,798. Semi-conductor rectifiers. BROWN, BOVERI & CIE A.G. Nov. 26, 1958 [Nov. 29, 1957], No. 38075/58. Class 37 A ring 5 of high permeability magnetic material surrounds at least one of the leads to a semi-conductor rectifier to reduce high voltage peaks which develop during the reverse cycle of rectification due to sudden cessation of hole storage current. The rectifier, which may consist of germanium is in a container 1 closed by metal end portions 2 and 3 which holds supply cable 4. Two additional magnetic rings 6, 7 may be added. The magnetic material may consist of 75 % nickel and 25 % iron. Current windings may be associated with the ring to form a current transformer for control of the rectifier or for fault or overload switching operations. |
