| 摘要 |
<p>PURPOSE:To eliminate the influence of secondary leakage impedance and prevent the influence of high frequency noise by limiting the primary current by the resistor connected in series to primary winding, and amplifying the secondary induced voltage occurring in the secondary winding by an amplifying means. CONSTITUTION:This transformer is equipped with resistors 9 and 10, which are connected in series to primary winding, an amplifying means 8, which amplifies the secondary induced voltage occurring in the secondary winding, a compensator 7, which offsets the voltage by secondary leak impedance, and a capacitor 13, which is connected in parallel with this. When high frequency noise occurs on the output side of an operating amplifier 8, the voltage occurring across the compensating impedance 7 offsets the voltage by the secondary leakage impedance of a transformer TR, and it eliminates the influence of the secondary leakage impedance. Furthermore, a capacitor for noise removal is connected in parallel with both ends of the compensating impedance 7, thus it can be made so that high frequency are not superposed on the output of the operating amplifier 8.</p> |
