找到约 9200 条相关结果
... ．用分立元件搭建发光二极管（LED）背光驱动控制电路，设计 ... the circuit was reduced. The adjustment of the LED backlight current was accurate and flexible and high ...
... 电流基本上成正比关系前提下,通过LED的正向工作电流采样电路、亮度 ... circuit design, this paper realizes accurate control of LED brightness based on chopper modulation. By changing the ...
... 原边控制反激式LED恒流驱动器。该LED恒流驱动器采用内部 ... 节省了整个驱动器的成本。该LED恒流驱动器应用于交流输入、 ... the whole driver. The LED constant current driver can be supplied in LED lighting which is AC power ...
... problem of how to improve the reliability of LED driver circuit,this paper introduces a High Power ... uses LM2577 as the core.It makes the LED current work in a steady state in a ...
... is one of the important indicators to affect LED light-emitting properties and lifetime. First, a suitable kind of LED driver that single-stage flyback PFC circuit based ...
... , discuss the design of BOOST driving circuit of LED. Through simulation and experimental verification, the soft start ...
... 信号和控制信号,动态扫描并驱动LED显示屏。实验测试结果表明：系统 ... way,and then the dynamic scanning and driving LED led display was performed. The experimental results show that ...
... modulation scheme is proposed for a multi-segmented LED driver to have dual functions of illumination and ... within a wide input voltage range. A prototype LED driver was implemented for experiments. Some test results ...
... A RT8482-based boosting constant-current high-power LED drive circuit which outputs adaptive voltage was designed ... consists of the input power polarity protection unit, LED boosting constant-current drive unit, PWM （pulse ...
... stable, no flicker direct-current （DE） LED light source exists on the market. Considering the ... attempt to design a real household flickerless DC LED lamp to meet the user＇ s health ...
