| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an illumination device in which stable dimming control on a lamp constituted of a light-emitting diode or the like is achieved.SOLUTION: An illumination device has a structure in which power efficiency is improved by driving a power supply supplied to a lamp by a current regulation system, the lamp can maintain constant brightness by performing constant current control, dimming control for controlling brightness of the lamp is possible, the power supply supplied to the lamp can be commonly supplied to peripheral circuit modules, and constant voltage control is performed so that the level of drive voltage supplied to the power supply maintains the constant level or more.</p> |
