找到约 9200 条相关结果
... regulator circuit which may drive two series of LED lights. This circuit consists by a rectifier filter ... of the voltage regulation and current ballast for LED miner＇s lamp. It also allows input ...
... 波动仅为±0．5℃，满足LED散热的需要。Semiconductor refrigeration was used ... was used for the temperature control of a LED module with the power of 7 × 3 W ...
... 了3~10 w的多芯片集成LED在低于100 mA的驱动电流下 ... 铝导电反光层，将多个LED芯片、SMD电容元件和DISIxxx系列 ... 能力，设计的5w功率级集成LED，采用80个0.3 mm X0.3 mm的LED蓝光芯片，通过涂敷YAG ...
... .The theoretical analysis and calculation of the novel LED driving circuit controlled by the hysteresis-tracking method ...
... introduced. One is emergency lamps, it use white LED for 3 W and constant flow aluminum plate ... AC power with the controller of LED light box and 64 white LED. The two kinds of lamp ...
... life.This article explains a design method of LED drive circuit without electrolytic capacitor.Using the Panasonic ... stable current to meet the working requirements of LED when adopting non-isolated low-side chopper circuit ...
... - esh rate, which are the key specifications of LED display system. It can solve the conflicts between the brightness utilization and refresh rate in traditional LED display system to improve the performance of the ...
... given.After that,the working principle of the LED display screen is introduced,and the basis of ... is explained.Finally,the working principle of the LED driver scanning chip is introduced.On this basis ...
... on.To overcome these drawbacks,this paper uses LED as the display backlight driver circuit and have ... buck converter chip voltage converter to control the LED drive current to achieve accurate adjustment of the ...
... 及负温度系数特性使得多个LED串并联时出现各串电流不均衡 ... 的对称跨接电容型LED均流电路,各LED支路串联的开关管轮流交错导通。利用各LED支路间的跨接电容在一个 ... 内的电荷守恒,实现了多路LED串的均流。对电路的 ... 其与非对称跨接电容型LED均流电路进行了对比。在 ...
