Abstract:
Embodiments of the invention provide AC LED lighting apparatuses. The AC LED lighting apparatuses may increase luminous flux and provide optimal efficiency through novel arrangement of a plurality of light emitting blocks on a circuit board and a plurality of LEDs and drive ICs included in each of the light emitting blocks to be sequentially driven, and/or through efficient series-parallel connection between a limited number of LEDs.
Abstract translation:本发明的实施例提供AC LED照明装置。 AC LED照明装置可以增加光通量并且通过在电路板上的多个发光块的新颖布置以及包括在每个发光块中的多个LED和驱动IC被依次驱动而提供最佳效率,和/ 或通过有限数量的LED之间的有效串联并联连接。
Abstract:
An AC LED lighting apparatus using a voltage edge detector is provided. The AC LED lighting apparatus includes: a rectification unit configured to rectify an AC voltage to output a DC rectified voltage; an LED unit including a first light emitting group and a second light emitting group each including at least one LED; and an LED driving control unit configured to control a serial/parallel connection relationship between the first light emitting group and the second light emitting group by comparing a voltage level of the rectified voltage input from the rectification unit with a reference voltage. The LED driving control unit sets the reference voltage by detecting a slope of the rectified voltage and simultaneously detecting the voltage level of the rectified voltage and the detected slope of the rectified voltage.
Abstract:
An AC LED lighting apparatus using a voltage edge detector is provided. The AC LED lighting apparatus includes: a rectification unit configured to rectify an AC voltage to output a DC rectified voltage; an LED unit including a first light emitting group and a second light emitting group each including at least one LED; and an LED driving control unit configured to control a serial/parallel connection relationship between the first light emitting group and the second light emitting group by comparing a voltage level of the rectified voltage input from the rectification unit with a reference voltage. The LED driving control unit sets the reference voltage by detecting a slope of the rectified voltage and simultaneously detecting the voltage level of the rectified voltage and the detected slope of the rectified voltage.
Abstract translation:提供一种使用电压边缘检测器的交流LED照明装置。 AC LED照明装置包括:整流单元,被配置为对AC电压进行整流,以输出DC整流电压; 包括第一发光组和第二发光组的LED单元,每个包括至少一个LED; 以及LED驱动控制单元,被配置为通过将从整流单元输入的整流电压的电压电平与参考电压进行比较来控制第一发光组和第二发光组之间的串联/并联连接关系。 LED驱动控制单元通过检测整流电压的斜率来设定基准电压,同时检测整流电压的电压电平和检测到的整流电压的斜率。
Abstract:
The LED lighting apparatus includes: a rectification block; an LED block including a first light emitting group and a second light emitting group; a charging/discharging block configured to charge electric charges in a charging period, and discharge electric charges in a discharging period; a driving control unit configured to determine a voltage level of a rectified voltage, controls a path selection switch to connect the rectification block to the LED block and controls the charging/discharging block to charge electric charges in the charging period, and controls the path selection switch to connect the rectification block to a ground and controls the charging/discharging block to discharge electric charges from the charging/discharging block to the LED block in the discharging period; and a path selection switch configured to connect the rectification block to the LED block in the charging period, and connect the rectification block to the ground in the discharging period.
Abstract:
A first heat sinking path formed in a forming direction of a heat sink unit disposed radially in a housing where a light emitting module is mounted. A second heat sinking path is formed along an edge of the light emitting module. By providing a light engine concept in which a light emitting module, an optical member, and a heat sink unit are included and a bottom surface is gradually widened from one side to the other side, an optical semiconductor lighting apparatus can reduce a total weight of a product, can further improve heat dissipation efficiency by inducing natural convection, is simple in the product assembly and installation, and is easy in maintenance, and can provide products with high reliability by increasing the arrangement efficiency of semiconductor optical devices per unit area.
Abstract:
An optical semiconductor lighting apparatus includes: a light emitting module including one or more semiconductor optical devices; a switching mode power supply (SMPS) connected to the light emitting module; a housing disposed to be adjacent to the light emitting module, in which the housing has both ends opened and accommodates the SMPS; a first heat dissipation unit disposed at an inner side of the housing; and a second heat dissipation unit disposed radially at an outer side of the housing and formed from an outer side of one end portion of the housing to the edge of the light emitting module. The first heat dissipation unit includes a plurality of heat dissipation plates through which the heat pipe penetrates, and a plurality of vent portions formed on the heat dissipation plates.
Abstract:
A light emitting diode (LED) lighting apparatus includes: a power supply unit configured to convert AC current and/or voltage into DC current and/or voltage and output the converted DC current and/or voltage, a light emitting module comprising a printed circuit board (PCB) and a plurality of LEDs disposed on a first side of the PCB, wherein the light emitting module is configured to receive the DC current from the power supply unit, a fan module configured to receive the DC voltage from the power supply unit, and a temperature sensor configured to generate temperature information and transmit the temperature information to the fan module. Moreover, the temperature sensor is disposed on the PCB.
Abstract:
Disclosed are a color converting element and a method for manufacturing the color converting element. The disclosed color converting element includes: first wavelength conversion cells spaced apart from one another; and second wavelength conversion cells arranged among the first wavelength conversion cells. The first and second wavelength conversion cells are made of a material containing glass. The color converting element of the disclosed technology is configured in that color converting cells having different color converting characteristics are periodically arranged, when the color converting element is applied to a color converting glass material which may improve thermal and chemical durability of white LEDs, thus minimizing the degradation of efficiency or luminance caused by an interaction between color converting phosphors or active ions and allowing for ease of adjustment of color rendering index.
Abstract:
An optical semiconductor light apparatus includes: a first light emitting block including one or more first light emitting modules; a junction box formed on one side surface of the first light emitting block and fastened to an end portion of a column; and at least one second light emitting block disposed on the other side surface of the first light emitting block and including one or more second light emitting modules, wherein the first and second light emitting modules are formed on one side thereof with one or more optical semiconductor devices and on the other side thereof with a plurality of heat dissipation fins, and the heat dissipation fins are received in the first and second light emitting blocks and formed in a direction in which the second light emitting block is coupled to the first light emitting block.