| 摘要 |
PROBLEM TO BE SOLVED: To provide a raster positioning circuit provided with a variable resistive device which is made to cope with the peak level of a small current as a target to deal with so as to use an inexpensive device as the variable resistive device. SOLUTION: A horizontal deflection winding centering circuit includes a Darlington transistor Q453 and a diode D60. The Darlington transistor Q453 and the diode D60 are connected together so as to form a nonlinear network which is connected in series to an inductor 452. A series structure composed of the inductor 452 and the nonlinear network is connected in parallel with a horizontal deflection winding LY. The base voltage of the Darlington transistor Q453 is generated by voltage dividers 450, 451, and 453 connected to the current path of an induction device i500.
|
