4W PF大于0.94的非隔离调光LED驱动方案

拓扑结构用的是单级非隔离降压模式，以满足设计中的高功率因数和持续电流以及调光需求，基于LinkSwitch-PL的设计提供功率因数大于0.94的优秀性能，满足国际标准。

本文包含LED驱动的规格，尺寸，PCB详细说明，材料清单，变压器文献，以及一些典型的特征

Summary and Features

Single-stage power factor correction combined with constant current (CC) output

TRIAC dimmable

Works with a wide selection of TRIAC dimmers from 300 W to 1200 W

Fast start-up time (<200 ms) – no perceptible delay

Low cost, low component count, small size and single-sided PCB

Integrated protection and reliability features

Output short-circuit protected with auto-recovery

Auto-recovering thermal shutdown with large hysteresis

No damage during brown-out conditions

PF >0.94 at 230 VAC

Meets IEC ring wave, differential line surge and EN55015 conducted EMI

Open load protection

方案详情请点击下载如下链接

【上】PF大于0.94的4W非隔离调光LED驱动方案：http://www.52solution.com/data/datainfo/id/6801

【中】PF大于0.94的4W非隔离调光LED驱动方案：http://www.52solution.com/data/datainfo/id/6802

【下】PF大于0.94的4W非隔离调光LED驱动方案：http://www.52solution.com/data/datainfo/id/6803