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首页> 外文会议>8th International Conference on Power Electronics-ECCE Asia >High-accuracy and cost-effective current-balanced multichannel LED backlight driver using single-transformer
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High-accuracy and cost-effective current-balanced multichannel LED backlight driver using single-transformer

机译：使用单变压器的高精度，经济高效的电流平衡多通道LED背光驱动器

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摘要

High-accuracy and cost-effective current-balanced multi-channel LED backlight driver is proposed in this paper. The conventional LED driver system consists of three cascaded power conversion stages and its driver stage has the same number of expensive boost converters as those of the LED channels. On the other hand, the proposed LED driver system consists of two cascaded power stages and its driver stage requires only passive devices instead of expensive boost converters. Nevertheless, all of the currents through multi-channel LEDs can be well balanced. Therefore, it features a smaller system size, improved efficiency, and lower cost. To confirm the validity of the proposed driver, its operation and performance are verified on a prototype for a 46'' LCD TV.
机译：本文提出了一种高精度，高性价比的电流平衡多通道LED背光驱动器。常规的LED驱动器系统由三个级联的功率转换级组成，其驱动器级具有与LED通道相同数量的昂贵升压转换器。另一方面，建议的LED驱动器系统由两个级联的功率级组成，其驱动器级仅需要无源器件，而不需要昂贵的升压转换器。尽管如此，通过多通道LED的所有电流都可以得到很好的平衡。因此，它具有更小的系统尺寸，更高的效率和更低的成本。为了确认所提议驱动程序的有效性，已在46英寸液晶电视的原型上验证了其操作和性能。

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