| 摘要 |
PURPOSE:To apply the circuit to 2-way deflection with simple constitution by superimposing a 2nd sawtooth wave current signal synchronously with a horizontal scanning reference signal onto a 1st sawtooth wave current signal synchronously with a vertical synchronizing signal and applying the resulting signal to a vertical deflection coil. CONSTITUTION:The circuit is provided with a signal generating circuit 13, voltage current conversion circuits 10, 16, 18, 20 and current superimposing circuits 12, 24, 26, 28, 30, 32. Then a 2nd sawtooth wave current signal IP whose current changes in a sawtooth way synchronously with a horizontal synchronizing signal HZD is superimposed on a 1st sawtooth wave current signal ITR whose current changes in a sawtooth way synchronously with a vertical synchronizing signal VD and the resulting signal is outputted to a vertical deflection coil. Thus, the vertical deflection circuit in 2-way deflection is obtained with simple constitution. |
