| 摘要 |
PURPOSE: The lamp drive prevents from the feedback terminal voltage rising of the change of temperature the specific voltage problem. The operation of the control integrated circuit is stabilized. CONSTITUTION: The channel section comprises one or more lamp. The control integrated circuit controls the lamp voltage provided to the channel section. The IC restriction(200) prevents from being raised to the specific voltage problem although the lamp voltage is signal-changed according to temperature. The IC restriction comprises the voltage distribution part(210), and the first switching part(220) and the second switching part(230). |
