Title:
AUTOMATIC CONTRAST CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JPS5378722
Kind Code:
A
Abstract:
PURPOSE: To prevent the damage of CRT or the deflection circuit without losing the gradation on the screen by making the transistor inserted into the flyback transformer's earth side circuit double the impedance convertion action of the diode and the emitter follower.
Inventors:
YAMAGUCHI NAKAO
Application Number:
JP15543176A
Publication Date:
July 12, 1978
Filing Date:
December 22, 1976
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N5/57; H04N5/14; H04N5/59; (IPC1-7): H04N5/14; H04N5/44