Simple, reliable drivers enable efficient, long-lasting PAR 30 and
PAR 38 bulbs
SAN JOSE, Calif.--(BUSINESS WIRE)--
Power Integrations (Nasdaq: POWI),
the leader in high-efficiency, high-reliability LED-driver ICs, today
announced four reference designs describing drivers for dimmable PAR 30
and PAR 38 LED light bulbs. Jointly developed by Power Integrations and
CREE, the designs showcase the combination of Power Integrations’ LYTSwitch™-4
driver ICs and CREE MT-G2 EasyWhite LEDs. DER-364 and DER-365
detail low- and high-line PAR 30 LED bulb drivers, respectively, while
DER-350 and DER-396 address low- and high-line PAR 38 bulbs. These and
other reference designs are hosted at www.powerint.com/ledrivers/cree.
LYTSwitch-4
ICs are highly efficient and deliver accurate output current regulation
in bulb and tube replacement applications and high-bay lighting. The
devices simplify design and reduce cost while ensuring that lamps
deliver uniform light output and provide exceptional performance in
TRIAC-dimmable applications. LYTSwitch-4
ICs combine PFC and constant current in a single-stage topology,
resulting in power factor greater than 0.95 and typical efficiencies of
better than 90%. The single-stage approach also eliminates
temperature-sensitive electrolytic bulk capacitors, greatly increasing
the bulbs’ reliability and lifetime. LYTSwitch-4
ICs also operate at a high switching frequency (132-kHz), enabling
smaller, lower-cost magnetics to be used, while frequency jittering
reduces the need for EMI filtering. These factors combine to deliver
LED-driver designs that fit easily into space-restricted bulbs.
Designs based on the new drivers easily meet EN61000-3-2C regulations
for total harmonic distortion (THD), and can achieve less than 10% THD.
Regulation is better than +/- 5% across load and production spread,
reducing the need for over-design to meet minimum luminance targets and
cutting system cost. LYTSwitch-4 drivers deliver excellent
dimming performance down to low conduction angles with leading-edge or
trailing-edge TRIAC dimmers. Start-up is very fast – typically less than
500 milliseconds even when dimmed to less than 10% light output – and
pop-on is virtually eliminated.
Comments
Andrew Smith
, senior product marketing manager for Power
Integrations: “We have worked closely together with CREE to deliver
real-world LED lighting systems that live up to their potential,
delivering reduced power consumption and increased lifetime. These
reference designs enable designers to realize cost-effective,
long-lasting LED bulbs simply and quickly.”
DER-364, DER-365, DER-350 and DER-396 are all downloadable at www.powerint.com/en/design-support/reference-designs/design-examples,
or by visiting www.powerint.com/ledrivers/cree.
Product datasheet and product introduction videos are also available on
the Power Integrations website at www.powerint.com/products/lytswitch-family/lytswitch.
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. CONCEPT 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.powerint.com;
visit Power Integrations’ Green
Room for a comprehensive guide to energy-efficiency standards around
the world.
Power Integrations, LYTSwitch, and the Power Integrations logo are
trademarks or registered trademarks of Power Integrations, Inc. All
other trademarks are the property of their respective owners.
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Source: Power Integrations