REGULATING CIRCUIT FOR PHASE DIFFERENCE BETWEEN CLOCK SIGNALS

摘要

PURPOSE:To regulate a phase difference between a basic clock signal and an inspection clock signal automatically and thereby to make it possible to output a regulated clock signal being matched in a phase with the basic clock signal. CONSTITUTION:A clock phase difference detecting circuit 7 which receives a basic clock signal 1 and a regulated clock signal 6 as inputs and outputs a motor control signal 8, a delay circuit 3 which receives an inspection clock signal 2 and a delay gate selection signal 10 as inputs and outputs the regulated clock signal 6, and a stepping motor 9 which receives the motor control signal 8 as an input, outputs the delay gate selection signal 10 and operates synchronously with the basic clock signal 1, are provided.