High Voltage LED Applications

　　High Voltage LED Applications

　　本文介绍了如何建立高电压电路设计采用MLX10803家用和工业用，或任何需要从发光二极管的高光层次应用。

　　本文中描述的应用程序用于驱动大功率LED二极管。所描述的电路可以在其他应用程序中使用类似的情况一样，如果他们属于MLX10803规格。这是一个概念性描述，在某些情况下，没有给定的组件值。在大多数情况下，所描述的应用程序已经实现。

　　对于高压设计来说，这不是一个微不足道的任务，在涉及到高电压时必须非常小心。讨论的例子必须精心设计和制作；微小的错误会产生毁灭性的后果。对于没有经验或未受过训练的人，不推荐使用这些例子。它是为电气和电子工程师提供相关的培训和经验，设计和建设高压电路。电路板必须根据高压规则设计。根据用户的具体实现，这些示例可能存在致命电压。

　　The circuits described in this article have a very good efficiency; converting efficiencies up to 98-99% are to be expected. This makes the circuit design fairly simple in respect of thermal handling. Remember that if you design lamps with up to 100 watts and more， even 1% loss generates 1 watt， and more heat.

　　Every kind of active current regulation generates ripple on the regulated output. This ripple can generate electromagnetic radiation （EMR）， resulting in electromagnetic coupling to the surrounding electronics （EMC）。 The MLX10803 and the applications described in this article are designed to minimize EMR. Additional care has to be taken when designing the circuit board and the physical application. Melexis makes no claims about the suitability of any of these circuits for EMI/EMC and EMR compliance against international regulations. Compliance testing is recommended and it will fall to the user to conduct such testing prior to sale in specific countries and markets.