荧光管驱动方法和装置

Fluorescent tube driving method and apparatus

Abstract

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.
本发明提供了一种荧光管驱动方法,用于基于由逆变器电路生成的交流驱动信号驱动荧光管,所述逆变器电路使用通过直接整流市电电压产生的直流电源,所述方法包括以下步骤:通过电压检测器检测提供给逆变器电路的输入电压;通过利用电流检测器检测基于交流驱动信号驱动荧光管的逆变器电路的输出电流;以及基于逆变器电路的输出电流以及提供给逆变器电路的输入电压,控制由逆变器电路生成的交流驱动信号,所述输出电流由电流检测器检测,所述输入电压由电压检测器检测,并且抑制由电流检测器检测的输出电流的变化。

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