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 FeaturesSingle-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
- 【上】PF大于0.94的4W非隔离调光LED驱动方案.pdf
- 【中】PF大于0.94的4W非隔离调光LED驱动方案.pdf
- 【下】PF大于0.94的4W非隔离调光LED驱动方案.part1.rar
- 【下】PF大于0.94的4W非隔离调光LED驱动方案.part2.rar