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一种新型高效LED背光源驱动控制电路设计

更新时间:2020-08-28 01:30:17 大小:1M 上传用户:zhiyao6查看TA发布的资源 标签:led驱动控制电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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用单片开关电源芯片做主控芯片.用分立元件搭建发光二极管(LED)背光驱动控制电路,设计了一种LED背光源驱动控制电路。该电路由电压转换、电压反馈、背光调整和恒流控制四部分组成。电路简洁。易于实现。在保证LED驱动电路性能的同时。简化了驱动电路设计。降低了电路的整体成本。经测试。所设计的LED驱动电路效率高。且能够精确灵活地调整LED背光电流。

A kind of LED backlight driver circuit using an integrated switching power supply chip was designed. The backlight control and adjustment department consisted of discrete components. The whole circuit was composed of voltage converter circuit, voltage feedback circuit, backlight adjustment circuit and constant current control circuit. This circuit was simple and easy to implement,and at the same time, the performance was guaranteed. The design was simplified and the overall cost of the circuit was reduced. The adjustment of the LED backlight current was accurate and flexible and high efficiency was obtained after test.

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一种新型高效LED背光源驱动控制电路设计.pdf 1M

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