首页>
外国专利>
Lighting device to which semiconductor light emitting element is applied
Lighting device to which semiconductor light emitting element is applied
展开▼
机译:应用了半导体发光元件的照明装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
An illumination apparatus capable of controlling current amounts of LEDs and enabling various electrical connections is provided. An applied driving voltage is divided, and a divided voltage is compared with a reference voltage to generate sampling signals. A logic operation is performed on the sampling signals to generate a switch control signal and a current control signal. The switch control signal controls electrical connection of LEDs to which the driving voltage is applied. Also, the current control signal may select LEDs that are to perform light emitting operations. A target voltage is set by processing the sampling signals and used to determine driving currents of the LEDs that are to perform the light emitting operations.
展开▼