| 摘要 |
A transformer particularly useful in conjunction with solid state high frequency push-pull inverter supplies for discharge lamps is disclosed. In accordance with one embodiment of the present invention, two E-shaped core sections are disposed adjacent to one another in a mirror image fashion with corresponding core legs aligned but with an air gap provided between the middle legs of the core structure. The transformer disclosed permits the use of non-bifilar winding methods in the manufacture of transformers particularly useful in square-wave push-pull inverters used in discharge lamp ballasting circuits. In addition, the core structure disclosed provides for an integral ballasting reactance which minimizes power loss induced in the surrounding metal casing or other nearby metal structures.
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