High efficiency 20W non-isolated buck boost LED driver designed with LNK460KG, with circuit diagram, bill of materials, specification file

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Summary:

This document describes a non-isolated, high efficiency, high power factor (PF) LED driver. It provides 85 V output voltage and 235 mA output current drive over an input voltage range of 85 VAC to 135 VAC (47 Hz – 63 Hz). This LED driver is designed using the LinkSwitch-PL family of devices LNK460KG.

This document contains LED driver specifications, schematics, PCB schematics, bill of materials, transformer documentation, and typical performance characteristics.

High efficiency 20W non-isolated buck boost LED driver PCB physical map

High efficiency 20W non-isolated buck boost LED driver circuit diagram

High Efficiency 20W Non-Isolated Buck Boost LED Driver PCB Layout

High Efficiency 20W Non-Isolated Buck Boost LED Driver Component List

See the uploading documentation for details (click to download)