| 摘要 |
<p>PURPOSE:To enable production of an accurate phase shift pulse output from an automatic pulse phase shifter even if there are variations in the frequency and the amplitude of an apparatus power supply by utilizing the output of a circuit for converting the frequency of the power supply into a voltage to compensate the output of a primary delay circuit. CONSTITUTION:AC signal from an AC signal source 6 is applied to a primary delay circuit 9, and also applied to a F/V converter circuit 10. The DC voltage output from the circuit 10 is applied to the circuit 9 as a bias voltage and also applied through an analog gate circuit 11A or 11B to an integrating circuit 12. The output signal A of the circuit 9 is applied to a gate drive circuit 13 as a control signal to convert the output of the circuit 13 into a signal B1 or B2 for opening the either gate of the circuit 11A or 11B according to the polarity of the signal A. The output of the circuit 12 is comparated with the phase shift control input signal E in level by a voltage comparator circuit 14. The phase shift pulse output F is dispatched through a differentiating circuit 4 and a pulse amplifier circuit 5 at a timing where both levels coincide each other.</p> |
