| 摘要 |
The present application relates to a drive circuit in an inverter circuit (T1, T2, T3). Said inverter circuit comprises a switching circuit (4) connected to a power source (1); a plurality of primary coils (T1-1, T2-1, T3-1) of a plurality of inverter transformers connected to said switching circuit; and a plurality of discharge tubes (FL1, FL2, FL3) connected to a plurality of secondary coils (T1-2, T2-2, T3-2) of said inverter transformers. The inverter circuit uses a plurality of balance transformers (CT1, CT2, CT3) to equalize each currents of the plurality of discharge tubes. Furthermore, the drive circuit comprises at least two of transformer apparatuses each including an inverter transformer having a primary coil and a secondary coil and a balance transformer having a primary coil and a secondary coil, wherein in each of the transformer apparatus, the inverter transformer and the balance transformer are integrally formed by sharing a part of their core portion.
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