〓〓〓〓 请英语高手翻译 谢谢好心人 〓〓〓〓

来源：百度知道 编辑：UC知道 时间：2024/05/24 09:18:02
中文摘要

由于LED正向伏安特性非常陡（正向动态电阻非常小），要给LED供电就比较困难。不能像普通白炽灯一样，直接用电压源供电，否则电压波动稍增,电流就会增大到将LED烧毁的程度。为了稳住LED的工作电流，保证LED能正常可靠地工作，各种各样的LED驱动电路就应运而生。因此，各种必须要在这么多的驱动电路中选择自己所适合的才能更好的发挥它的功效。
本篇从LED驱动电路方法上进行研究，分别在国内外研究现状上介绍研究的目的和意义，以及从LED驱动电路、线性恒流驱动电路、开关恒流驱动电路等对象上研究方法，再则从大功率LED恒流驱动电路的设计实例上进行详细的解说高效的恒流驱动电路、新应用对驱动器的要求等问题，最后针对LED驱动电路的实际应用进行逐步的分析，进而对LED驱动电路方法有一个深刻的认识。
关键词：LED驱动电路、恒流驱动电路、大功率

Summary:
Because LED characteristic very getting steep to volt-ampere, want, give LED supply power difficult. Can't supply power with the voltage source directly like ordinary incandescent lamp, otherwise the voltage fluctuates and increases slightly, the electric current will increase to the intensity of burning LED. In order to hold the job electric current of LED, guarantee LED can be normal to work reliably, various LED urges the circuit to arise at the historic moment. So, various must choose ability that oneself is suitable for better its efficiency of full play in so much drive circuit.
This piece urge circuit carry on research at the method from LED, study current situation introduce purpose and meaning studied at home and abroad separately, urge circuit, linear to flow, urge circuit while being permanent from LED, switch permanent to flow, urge circuit research approach at the target, LED permanent to flow, urge design of circuit carry on detailed comment a h