| 摘要 |
A lamp driving method and an inverter for driving the lamp are disclosed which can stably maintain a desired duty ratio of a pulse width modulation (PWM) signal for controlling driving of a lamp. The method for driving lamp, comprising: generating an inner pulse width modulation (PWM) signal; outputting a DC level in response to a duty ratio of an external PWM signal; selectively outputting the external PWM signal or the inner PWM signal in accordance with the DC level; and generating an AC drive signal Acs in response to the external PWM signal or the inner PWM signal, and supplying the AC drive signal to the lamp.
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