| 摘要 |
A fluorescent tube driving method for driving a fluorescent tube on the basis of an alternating current driving signal generated by an inverter circuit that uses a direct current power supply produced by directly rectifying the voltage of a commercial power supply includes the steps of: detecting an input voltage supplied to the inverter circuit by a voltage detector; detecting an output current of the inverter circuit that drives the fluorescent tube on the basis of the alternating current driving signal by using an electric current detector; and controlling an alternating current driving signal generated by the inverter circuit on the basis of the output current of the inverter circuit, which is detected by the electric current detector, and an input voltage supplied to the inverter circuit, the input voltage being detected by the voltage detector, and suppressing a variation in the output current detected by the electric current detector.
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