AUTOMATIC DISCRIMINATION CIRCUIT FOR CORRECTION VALUE OF HORIZONTAL DY INDUCTANCE

摘要

PROBLEM TO BE SOLVED: To provide an automatic discrimination circuit for a proper value of the inductance of a horizontal DY easily set to the inductance range of a proper horizontal DY. SOLUTION: A conversion section 1 converts a voltage VCP generated in a deflection yoke into a DC voltage DCV depending on a duty ratio of a pulse voltage waveform and a discrimination ; section 2 compares the DCV with a reference voltage to discriminate the quantity and a display section 3 is used to display the discrimination result by the LED lighting in 'LOW', 'GOOD', 'HIGH' and a knob is adjusted to urge proper setting of the horizontal DY inductance range in this horizontal DY inductance proper value automatic discrimination circuit.