首页>
外国专利>
Solid light source lighting device, illumination apparatus, and illumination system
Solid light source lighting device, illumination apparatus, and illumination system
展开▼
机译:固体光源照明装置,照明装置以及照明系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A solid light source lighting device includes: a step-down chopper circuit including a switching element and outputting a DC power by turning on and off the switching element; a capacitor connected in parallel to a solid light source connected across output terminals of the step-down chopper circuit; and a control circuit determining a control value for a switching operation of the switching element based on a dimming signal for indicating a dimming ratio of the solid light source, and performing switching control of the switching element based on the control value. When performing switching control of the switching element so that the dimming ratio becomes high based on the dimming signal indicating a first dimming ratio, the control circuit performs the switching control of the switching element based on the control value that becomes a second dimming ratio higher than the first dimming ratio for a prescribed time period.
展开▼