| 摘要 |
A flyback power supply for use with a cathode-ray tube includes a flyback transformer which comprises a core having two spaced core legs, and two core units supported respectively on the core legs. Each of the coil units includes a low-voltage coil bobbin fitted over one of the core legs, a low-voltage coil wound around the low voltage coil bobbin, a high-voltage coil bobbin disposed around the low-voltage coil bobbin, and a high-voltage coil which comprises a plurality of coil layers wound successively around the high-voltage coil bobbin with insulating layers interposed between the coil layers, the low-voltage coils of the coil units being connected parallel to each other. Diodes are connected in series with the coil layers, respectively of the high-voltage coil of each of the coil units such that voltages produced across the coil layers will be in phase with each other. The high-voltage coils of the coil units are connected in series with each other, whereby voltages produced across the high-voltage coils are added and rectified.
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