| 摘要 |
<p>PURPOSE:To suppress a ringing voltage completely by providing a secondary winding part with a rectifying and smoothing circuit composed of a series connector of a rectifying diode and a capacitor juxtaposed with a resistance. CONSTITUTION:To constitute a flyback transformer, a primary winding 3 and a tertiary winding 4 wound round a primary side coil bobbin and a secondary winding 6 wound round a secondary side coil bobbin are fitted to a core. Said secondary winding 6 is divided into plural parts before its winding. In this case, respective divided secondary winding parts 6a are wound in lamination layers successively from a low voltage side, and a rectifying and smoothing circuit 13 for rectifying and smoothing a scanning interval is inserted into both ends of the secondary winding part 6a (the first layer induced by the tertiary winding 4 arranged on the primary winding 3 side) on the innermost periphery. Thus, a diode D7, a capacitor C and a juxtaposed resistance R of the rectifying and smoothing circuit 13 can store a ringing voltage component and flatten a voltage waveform for the scanning interval.</p> |
