Patent ID: 8314568

Claim:
A fluorescent lamp driving method for driving a fluorescent lamp by using an alternating current driving signal generated by an inverter circuit using direct current power as an input, the alternating current driving signal being supplied from the inverter circuit to a load including the fluorescent lamp, the fluorescent lamp driving method comprising the steps of: by using a sum current detecting circuit, detecting a current change in the supplied alternating current driving signal; by using a control circuit, controlling the alternating current driving signal generated by the inverter circuit on the basis of the current change detected by the sum current detecting circuit, and controlling a current of the supplied alternating current driving signal to be constant; by using a temperature detecting circuit, detecting the temperature of the fluorescent lamp; and by using a correction circuit, on the basis of the temperature of the fluorescent lamp detected by the temperature detecting circuit, correcting the control of the current of the supplied alternating current driving signal to be constant.