7.5W Non-Isolated Tap Buck, High Power Factor Correction LED Driver Designed with LYT4311E

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Summary:

This document describes a stand-alone, high power factor (PF), thyristor dimming LED driver design. It is used to drive a 15 V rated LED string voltage from 90 VAC to 132 VAC with an input voltage range of 500 mA. This LED driver is designed using the LYT4211E device from the LYTSwitch-4 family.

This document includes power specifications, circuit diagrams, bill of materials, transformer documentation, printed circuit board layout, and performance data.

7.5W non-isolated tap buck, high power factor correction LED driver PCB physical map

7.5W Non-Isolated Tap Buck, High Power Factor Correction LED Driver PCB Layout

7.5W non-isolated tap step-down, high power factor correction LED driver circuit diagram

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