| 摘要 |
<p>In a television receiver, an ultor accelerating potential or high voltage for a picture tube is derived by rectifying a retrace pulse voltage developed in a first or high voltage winding of a flyback transformer. The retrace pulse voltage is developed by a horizontal deflection circuit output stage that is coupled to the high voltage winding via a primary winding of the flyback transformer. An energy storage inductance is coupled to a second winding of the flyback transformer such that an input supply voltage is transformer-coupled from the first winding to the inductance, during trace, to store magnetic energy in the inductance for generating from the stored magnetic energy in the inductance a second pulse in the second winding, during retrace. Both the first and second pulses are transformer-coupled to a load circuit via the transformer for generating one of a regulated load voltage and a regulated load current in the load circuit that is regulated in accordance with the second pulse.</p> |
