aerobotics

RDR-292 - Reference Design Report for 150W LLC Power Supply for LED Street Lighting

RDR-292 - Reference Design Report for a 150 W LLC Power Supply for LED Street Lighting

Overview

Summary and Features
-Integrated PFC stage using
-PFS708EG from HiperPFS family of ICs
-LQA05TC600 ultrafast soft recovery QSpeed diode
-Integrated LLC stage using
-LCS702HG from HiperLCS family of ICs
-Simple snubberless bias supply using
-LNK302DG from LinkSwitch-TN family of ICs
-CAPZero (CAP002DG) IC used to discharge X capacitors for higher efficiency compared to resistive solution
-High frequency (250 kHz) LLC for small transformer size
->95% full load PFC efficiency at 115 VAC
->95% full load LLC efficiency
-System efficiency 91% / 93% at 115 VAC / 230 VAC

Blockdiagram

Design Files

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Update:2025-06-24 09:44:50

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