| 摘要 |
PURPOSE:To reduce power consumption by correcting horizontal amplitude variation without using any resistance. CONSTITUTION:A flyback transformer 1 includes correcting winding 1c. One terminal of this winding 1c is connected to primary winding 1a through a rectifying diode D2, and a capacitor C1 is connected between the connection point E of the diode D2 and winding 1a, and the other terminal of the winding 1c. Consequently, a pulse voltage P developed across the winding 1c during a flyback period is rectified by the diode D2 to charge the capacitor C1. Simultaneously, an induced current i3 flows. As this current i3 is smaller the potential at the connection point E is higher and i3 is larger the potential of the point E is lower. Therefore, a high output voltage drops (rises) by an increase (decrease) in high-voltage load current i1 and a horizontal amplitude which is to increase (decrease) is corrected horizontally because of the low (high) voltage held in the capacitor C1. Further, no resistance is used, so there is almost no electric power loss. |
