| 摘要 |
PURPOSE:To form an output voltage in multiple stages with a simple configuration by controlling the output of a phenomenon bias of an electronic copying machine. CONSTITUTION:An AC voltage raised by the winding ratio of the primary winding side to the secondary side winding is induced at the secondary side of a pulse transformer T by the switching of a transistor Q1, and the AC voltage is rectified by a rectifier 12. Since the output of the rectifier 12 depends upon a DC voltage applied to the primary side winding L1 of the transformer T, the output voltage is varied by altering the duty ratio of the output pulse of a clock generator 13. The output voltage can be simply composed in multiple stages by the above construction. |
