| 摘要 |
<p>A transformer bead or core 10' comprises a body formed with at least first and second channels 16, 18, which may be cylindrical, for receiving transformer windings wherein at least one groove or notch 30 is formed in the body extending between and parallel to the channels. The groove acts to provide a flux gap such that when the transformer bead 10' is used to carry two separate transformer windings 20, 22, the groove 30 interrupts the flux path occurring in the magnetic bead 10' substantially reducing cross-coupling. The groove 30 may have an outwardly curved, tapered cross-section with a flat base. There may be upper and lower grooves 30, directly opposing each other, and the depth of the groove or grooves may range from 20 to 80% of the body 10' height. The bead 10' may be incorporated into an electronic device or circuit (40, Figure 4). The transformer may be used in a cable television splitter circuit.</p> |
