| 摘要 |
Provided is a discharge tube driving device for driving a plurality of discharge tubes with less driving transformers. The discharge tube driving device comprises a switching circuit controlled by switching pulses for generating drive pulses, a drive transformer having a primary winding fed with the drive pulses and a secondary winding for generating a high-frequency drive signal, a first discharge tube group constituted of a plurality of discharge tubes, and a second discharge tube group constituted of a plurality of discharge tubes. The secondary winding of the drive transformer has its plus high-voltage terminal connected with one terminal of each of the discharge tubes of the first discharge tube group. The secondary winding of the drive transformer has its minus high-voltage terminal connected with one terminal of each of the discharge tubes of the second discharge tube group. The individual other terminals of the discharge tubes of the first discharge tube group are connected with the individual other terminals of the discharge tubes of the second discharge tube group.
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