Control circuit for setting a reverse voltage, and a control voltage, for example for cathode ray tubes, and this circuit video equipment containing

摘要

PURPOSE: To perform more accurate and efficient adjustment by providing the control circuit of linear characteristics for facilitating mode changeover separately from the control circuit for general adjustment. ;CONSTITUTION: This circuit is constituted of an adjustment circuit 2 for performing the adjustment to input signals 1, the control circuit 3 constituted of (n) bits and (m) lines where (n) and (m) are optional natural numbers for controlling the adjustment circuit 2 and the control circuit 4 for the mode changeover constituted of (n) bits and one line capable of controlling the adjustment circuit 2 separately from the control circuit 3. Then, the need of the adjustment for respective modes is eliminated by using the control circuit 4 for the mode changeover and the mode changeover by offset data is made possible. For instance, color temperature changeover is adjusted by the control circuit for the color temperature changeover after normal white balance adjustment. Also, in order to use the adjustment circuit 2 and perform cut-off drive adjustment, adjustment control is performed in the adjustment circuits of a cut-off control circuit 13 and a drive control circuit 16 and thereafter, a color temperature changeover value in a different mode is decided.;COPYRIGHT: (C)1996,JPO