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汽车应用的LED驱动

资料大小: 0.37 MB 所需积分: 0 下载次数: 用户评论: 0条评论,查看 上传日期: 2017-08-05 上 传 者: 李倩他上传的所有资料

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标签:汽车应用(35)驱动(335)led(5023)
  汽车应用的LED驱动   设计选项包括外部和集成输出版本,所有这些都符合严格的汽车资格标准。   介绍   LED照明在汽车应用中的使用也越来越多,原因有很多,LED照明正在渗透到非汽车领域。发光二极管效率更高,体积更小,寿命更长,可以提高设计的自由度。在刹车灯的应用中,LED的快速开启提供了一个额外的安全边际,警告后面的司机。发光二极管的响应速度是传统白炽灯泡的十倍。除了这个安全方面,LED照明的颜色更自然,更安全的向前照明。易于控制的LED也使他们成为一个自然的智能照明系统,根据车辆传感器输入调整。控制的一个重要方面是集成电路(IC)驱动程序提供的电源管理。      According to Strategies Unlimited, a market intelligence firm that focuses on LED lighTIng, LED lighTIng penetraTIon of exterior and interior lighTIng functions continues. Strategies Unlimited analyst Dr. Robert Steele says that as auto production recovers from the recession, so too will sales of LEDs for these applications. For 2010, Steele predicted that the automobile segment would grow by more than ten percent from 2009.   Automotive applications for LEDs include interior lighting (such as dome, dash and footwell lighting), indicator and telltale lights and infotainment backlighting as well as exterior (signaling) functions such as tail lights, turn signals, brake lights (including center high-mount stop lamps (CHMSL), parking lights, side marker lights, fog lamps and daytime running lights (DRLs)。 More recently, a few vehicle manufacturers have introduced LED headlamps on production models based on high-brightness (HB) LEDs. In some cases, the capabilities of an LED driver can enable more than one application to be addressed with the same LEDs.

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