Horizontal blanking pulse generation circuit used for display unit with cathode-ray tube

摘要

A blanking pulse generation circuit for generating a blanking pulse with a large duration is disclosed. The blanking pulse generation circuit includes a flyback pulse shaping circuit for shaping a flyback pulse and generating a rectangular wave signal and a front pulse generation circuit for adding a front pulse to the front edge of the rectangular wave signal. The blanking pulse is formed by the blanking pulse generation circuit for adding a front pulse to the rectangular wave signal.