| 摘要 |
PURPOSE:To easily adjust to a maximum separating point, by comparing a normal output with a leaked output for the phase relation and discriminating/ displaying the rotating direction of an adjusting element. CONSTITUTION:A demodulation IC 21 has a normal output terminal 26 and a leakage output terminal 27 and the terminal 27 has an amplifier 14 which amplifies leaked output up to the level equivalent to the normal output. A wave shape circuit 15 is respectively connected to both the terminals 26 and 27 and an output of a circuit 15 is inputted to a phase comparator 16. An output of the comparator 16 is eliminated for ripple component through an LPF 17 and inputted to a comparator 18. This comparator 18 compares a reference voltage 19 with the output of the comparator 16 through the LPF 17 and illuminates either LED 23 or 24 for the display of the state of deficient or over compensation. The direction of rotation of the adjusting element can be displayed. |
