| 摘要 |
PURPOSE:To reduce the magnetostrictions of the amorphous magnetic thin bands into 0 or the vicinity of 0 and to maintain the symmetrical property of the hysteresis curve generating in each amorphous magnetic thin band by a method wherein a capacitor is provided bteween the intermediate lead-out conductor of the primary winding of an oscillating transformer and the grounding conductor thereof. CONSTITUTION:A capacitor C is provided between the intermediate lead-out conductor of the primary winding of an oscillating transformer ST, which is constituted of saturable cores consisting of amorphous magnetic thin bands, and the grounding conductor thereof. However, when a DC electric power E is being impressed on the circuits and the electric power E is turned OFF, the oscillation operation is made to gradually extinguish by the charge being stored in the capacitor C and the residual magnetic flux is dwindled into 0 or the vicinity of 0. As the residual magnetic flux Br is left to stand in 0 by the circuits, the symmetrical property of the hysteresis waveform is held and the effect of preventing an abnormal waveform from generating can be obtained. The symmetrical property of the hysteresis waveform is maintained in such a way, and at the same time, the waveform is a high-angle type and can be obtained in low loss because of the amorphous magnetic thin bands, and furthermore, the waveform distortion is eliminated, and moreover, the highly reliable saturable cores can be realized.
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