Abstract: An LED lighting device comprises: a rectification circuit unit for receiving input power from a power source unit and outputting a rectified power; an LED unit having a plurality of LED channels connected in series and a resistor unit connected to the last end of the LED channels; a current sensing resistor; and a switch circuit unit comprising a plurality of switches, wherein an nth switch is connected to the rear end of an nth LED channel so as to control an operation of the nth LED channel and is controlled by a sum of a current of the nth switch and a current of an (n+1)th switch, which flows through the current sensing resistor.

Abstract: An LED lighting device comprises: a rectification circuit unit for receiving input power from a power source unit and outputting a rectified power; an LED unit having a plurality of LED channels connected in series and a resistor unit connected to the last end of the LED channels; a current sensing resistor; and a switch circuit unit comprising a plurality of switches, wherein an nth switch is connected to the rear end of an nth LED channel so as to control an operation of the nth LED channel and is controlled by a sum of a current of the nth switch and a current of an (n+1)th switch, which flows through the current sensing resistor.

Abstract: The present invention relates to a pharmaceutical composition for treating and preventing inflammatory diseases comprising an ethyl acetate fraction of dried extract of Trachelospermi caulis as an active ingredient and a method for producing the fraction. More particularly, the present invention relates to a composition for preventing and treating inflammatory diseases comprising an ethyl acetate fraction of dried extract of Trachelospermi caulis as an active ingredient, in which the extract of Trachelospermi caulis is refined and concentrated to contain 0.05˜12% by weight of arctigenin as an index material, and a method for producing the fraction.

Abstract: The present invention relates to a pharmaceutical composition for preventing and treating an inflammatory disease, including a mixture of extracts from Trachelospermi Caulis and Paeonia Suffruticosa Andrews as an active ingredient and method for preparing the same. Also, a quasi-drug composition, a health functional food composition and a cosmetic composition, all based on the mixture, are provided for preventing or improving inflammation. In addition, the present invention relates to a method for treating an inflammatory disease by administering the pharmaceutical composition to a subject suspected of having the inflammatory disease. Containing the extract mixture, the composition exhibits excellent anti-inflammatory activity and edema-suppressing activity, compared to individual extracts, and thus can be applied to the prevention, treatment or improvement of an inflammatory disease.

Abstract: The present invention relates to a pharmaceutical composition for treating and preventing inflammatory diseases comprising an ethyl acetate fraction of dried extract of Trachelospermi caulis as an active ingredient and a method for producing the fraction. More particularly, the present invention relates to a composition for preventing and treating inflammatory diseases comprising an ethyl acetate fraction of dried extract of Trachelospermi caulis as an active ingredient, in which the extract of Trachelospermi caulis is refined and concentrated to contain 0.05˜12% by weight of arctigenin as an index material, and a method for producing the fraction.