| 摘要 |
PURPOSE:To constitute a low-pass filter so as not to be influenced by the lead inductance, by negating the lead inductance of a capacitor of the T-type circuit by means of the mutual inductance of coils. CONSTITUTION:In a low-pass filter, two coils of 1 and 2 of the symmetrical T-type circuit are electromagnetically coupled to each other. When this mutual inductance is made to correspond with the lead inductance l5 and is equivalently connected in series with the capacitor 3, since the polarity of the mutual inductance 5 is negative, the lead inductance 4 of the capacitor 3 is negated by the mutual inductance 5. |
