Date: 07/06/2012

150W LED reference design kit from Power Integrations for industrial lighting applications

Power Integrations has announced a reference design kit for a 150W, 48V power supply for LED streetlights and other industrial/infrastructure lighting systems. The manufacturer claims that the driver circuit described in RDR-292 is more than 93% efficient at 230 VAC input and above 91% at 110 VAC.

Features of the design:
1. System power factor: >0.97
2. THD: <10%
3. Meets EN61000-3-2 C
4. To scaled from 75W to 400W, choose different HiperPFS (PFC) and HiperLCS (LLC) family members and sizing power components appropriately

RDK-292 requires fewer than 125 components to implement the driver’s PFC, LLC and standby power supply circuits. The design utilizes a combination of Power Integrations’ integrated HiperPFS power-factor-correction IC and the HiperLCS resonant converter IC. The design incorporates a Qspeed merged PIN-Schottky diode as well, boosting CCM PFC efficiency.

For installations with remote lighting-control systems, the design implements standby power supply functionality based on Power Integrations’ LinkSwitch-TN ICs. The addition of a CAPZero X-capacitor discharge IC reduces no-load consumption to around 800 mW at 264 VAC input.

Andrew Smith, product marketing manager at Power Integrations comments: “LED lighting can deliver significant cost savings for municipalities and commercial/industrial enterprises, but these savings cannot be fully realized without efficient, reliable, low-cost driver circuits. Power Integrations offers a full range of products – showcased in RDK-292 – to give designers of high-power LED lighting systems a strong competitive edge.”

RDK-292 contains specification, schematic, BOM, transformer documentation, PCB layout, and performance data.

For RDK-292: www.powerint.com/rdk
For RDR-292: http://www.powerint.com/sites/default/files/PDFFiles/rdr292.pdf