Innovative design drastically shrinks component count, improving
efficiency, size and reliability of LED streetlights and high-bay
lighting
SAN JOSE, Calif.--(BUSINESS WIRE)--
Power Integrations (Nasdaq: POWI),
the leader in high-efficiency, high-reliability LED-driver ICs, today
announced a new reference design for LED streetlights, high-bay lights
and other high-power LED-lighting applications. The new design, RDR-382,
describes a constant current, 43 V (nominal), 150 W reference power
supply for 90-265 VAC solid-state lighting, utilizing Power Integrations HiperPFS™-2
PFC controller ICs and HiperLCS™
integrated LLC power stage ICs.
Power Integrations Launches New Reference Design for High-Power LED-Lighting Applications. (Photo: Business Wire)
Traditional dual-stage drivers with separate PFC and LLC stages produce
a constant-voltage (CV) output requiring multiple DC-DC converters to
convert the output to constant current (CC). In contrast, RDR-382 uses a
novel feedback and control scheme which enables the LLC to provide
constant current directly at the output. As a result, component count is
cut by approximately one-third, efficiency is increased to > 93 %, and
the elimination of the DC-DC converter stage significantly reduces size.
Additionally, the high nominal LLC switching frequency (250 kHz) reduces
the size of the required magnetics, while the use of a
continuous-conduction-mode, variable-frequency PFC stage reduces EMI
compared to fixed-frequency alternatives.
Comments
Andrew Smith
, senior product marketing manager for Power
Integrations: “Reliability is especially important for high-power
lighting applications above 75 W output. Because this design is high
efficiency, less heat is generated. In combination with a reduced
component count, this ensures a long lifetime.”
RDR-382
can be used to drive single or multiple LED strings and allows analog
dimming to be implemented with a 0-10 VDC input. The reference design
can be downloaded from: http://led-driver.power.com/sites/default/files/PDFFiles/rdr382.pdf
About Power Integrations
Power
Integrations, Inc., is a Silicon Valley-based supplier of
high-performance electronic components used in high-voltage
power-conversion systems. The company’s integrated circuits and diodes
enable compact, energy-efficient AC-DC power supplies for a vast range
of electronic products including mobile devices, TVs, PCs, appliances,
smart utility meters and LED lights. SCALE™ IGBT-driver systems
enhance the efficiency, reliability and cost of high-power applications
such as industrial motor drives, solar and wind energy systems, electric
vehicles and high-voltage DC transmission. Since its introduction in
1998, Power Integrations’ EcoSmart™ energy-efficiency technology
has prevented billions of dollars’ worth of energy waste and millions of
tons of carbon emissions. Reflecting the environmental benefits of the
company’s products, Power Integrations’ stock is included in the NASDAQ®
Clean Edge® Green Energy Index, The Cleantech Index®,
and the Ardour Global IndexSM. For more information,
including design-support tools and resources, please visit www.power.com;
visit Power Integrations’ Green
Room for a comprehensive guide to energy-efficiency standards around
the world.
Power Integrations, HiperPFS-2, HiperLCS and the Power Integrations
logo are trademarks or registered trademarks of Power Integrations, Inc.
All other trademarks are the property of their respective owners.
Photos/Multimedia Gallery Available: http://www.businesswire.com/multimedia/home/20141216006710/en/
Source: Power Integrations, Inc.