| 摘要 |
1,072,974. Transformers. SIEMENS A.G. Feb. 7, 1966 [Feb. 8, 1965], No.5204/66. Heading HIT. [Also in Division H3] An arrangement for reducing the. losses in inductive members of filter circuits, by use of amplifier with positive feedback (see Division H3) utilizes a transformer comprising E- section cup-shaped or rectangular cores K1, K2, a predetermined leakage inductance being provided by means of a gap S separating the central limbs. The main windings I, II are wound in the same direction and superimposed on auxiliary windings ZI, ZII by means of which the positive feedback is applied, and which are wound in mutually opposing directions. A magnetic shunt W is provided between the pairs of windings, so that the influence on winding I of the current in auxiliary winding ZII is much less than that of the current in auxiliary winding ZI, as so also is the influence of winding ZI on winding II less than that of winding ZII. |
