公开(公告)号：US20120319603A1

公开(公告)日：2012-12-20

申请号：US13582393

申请日：2010-03-01

申请人： Stefan Möller ,  Ralf Edelmeier ,  Stefan Kaiser

发明人： Stefan Möller ,  Ralf Edelmeier ,  Stefan Kaiser

IPC分类号： H05B37/00

CPC分类号： H05B33/0809

摘要： The present invention relates to a method to supply power to an LED array, comprising at least two LED branches connected in parallel, in each of which at least one LED is arranged. The LED array is supplied with predetermined power from a current source connected in series, wherein currents are measured in the LED branches, wherein the measured currents are compared in control electronics, and wherein the currents are controlled in a part of the LED branches such that they have a defined ratio with respect to one another in the LED branches. The method is intended to be improved such that it can be carried out economically and with simple means. This is achieved in that one of the LED branches is selected to be the master whose current is utilized as the target specification for the remaining LED branches.The invention further relates to a circuit arrangement for implementing the method according to the invention as well as a lighting unit with such type of circuit arrangement.

摘要翻译： 本发明涉及一种向LED阵列供电的方法，包括至少两个并联连接的LED分支，其中每个LED分配至少一个LED。 LED阵列从串联连接的电流源提供预定功率，其中在LED分支中测量电流，其中测量的电流在控制电子器件中进行比较，并且其中电流在LED分支的一部分中被控制，使得 它们在LED分支中具有相对于彼此的限定比例。 该方法旨在被改进，使得其可以经济地和简单地进行。 这是通过选择一个LED分支作为其电流被用作剩余LED分支的目标规格的主器件来实现的。 本发明还涉及用于实现根据本发明的方法的电路装置以及具有这种类型的电路装置的照明单元。