| 摘要 |
PURPOSE:To secure the reduction of the Q value with an extremely high accuracy by comparing the output of the differential amplifier with the set voltage of the voltage setter via the comparator and then supplying the output to the DEQ circuit lowers the Q value via the trigger generator to give the control to the gain of the differential amplifier. CONSTITUTION:The differential amplification is given via differential amplifier 20 to the output voltage of monitor circuit 9 and set voltage EO of voltage setter 21. The output of amplifier 20 is compared with set voltage E of setter 22 via comparator 15, and the comparison output is applied to trigger generator circuit 16 to generate the trigger voltage. This trigger voltage is supplied to DEQ circuit 12 which lowers the Q value. Now the gain of amplifier 20 is referred to as A, thus the voltage of setter 22 plus gain A are selected properly. And thus the Q value can be reduced with an extremely high accuracy. |
