Fairchild Semiconductor’s Global Power ResourceSM Center Delivers a Total Solution for Energy-Efficient LED Street Lighting
July 27 2010 - 11:01AM
Business Wire
Fairchild Semiconductor’s (NYSE: FCS) China-based Global Power
ResourceSM Center (GPRC) has developed a complete LED street
lighting solution that provides high efficiency and outstanding
thermal performance – as well as high reliability – to increase the
lifetime of street lamps.
The performance-optimized solution validates Fairchild’s strong
energy-efficiency reputation by reducing power consumption in order
to meet and exceed the increasing demand for greener electronics.
This demand has been driven by consumers as well as governments and
regulatory standards worldwide – including China’s central and
provincial authorities and ENERGY STAR’s Solid-State Lighting (SSL)
guidelines.
Fairchild’s new solution features advanced critical conduction
mode (CrCM) PFC, high-efficiency DC-DC and constant current
control. This total solution includes two sub-solutions, either
parallel or serial, within the same PCB layout delivering up to
91.26 percent and 92.6 percent efficiency respectively from AC
input to the LED side, under 220V input voltage.
“Our China GPRC team assists customers by providing solutions
that overcome thermal management challenges normally associated
with LED street lighting, and by achieving high efficiency and
decreasing power consumption,” said Benjamin Tan, Fairchild’s
regional vice president of Sales and Marketing, China and South
East Asia. “High system efficiency depends on the performance of
each section of the design. Our leading edge PFC controller and LLC
ICs ensure minimum power loss and deliver higher efficiency.”
The parallel solution features independent current regulation
for each LED string. Therefore, if one string has an open circuit
the other strings can still function normally. For the serial
solution, independent open circuit protection for each string
enables the other LEDs to still work normally even if one LED
string experiences an open circuit. If an LED short circuit
happens, the constant current circuits ensure all the other LEDs
work normally in both parallel and series sub-solution.
This new solution significantly lowers component count by more
than 20 for the parallel layout and 86 for the serial layout
compared to conventional solutions. Fewer components, robust
protection functionality and high LED fault tolerance capability
make the solution very reliable. Fairchild’s GPRC engineers
deployed a range of parts from the company’s comprehensive
portfolio to develop this total solution such as the FAN7930, an
active power factor correction (PFC) controller designed for boost
PFC applications operating in CrCM; the highly integrated Fairchild
Power Switch (FPS™), the FSFR2100 offers everything necessary to
build a reliable and robust resonant half-bridge converter
In addition, Fairchild’s LED lighting solutions are available
for applications with output power requirements ranging from 100W.
These include:
- PFC Controllers that include
both standalone and PFC/PWM combo controllers as well as Critical
Conduction Mode (CrCM) and CCM technologies, designed to increase
system efficiency, reduce system noise, and offer a range of
protection features for medium and high power designs.
- PWM Controllers that include
standalone and highly integrated solutions with MOSFETs like the
Asymmetrical Half Bridge, FSFA2100, the LLC Resonant Half Bridge,
FSFR2100, and the stand-alone LLC Resonant Controller,
FAN7621.
- Primary-Side-Regulation (PSR)
PWM controllers, such as the FSEZ1307, FSEZ1317 and the FAN103,
that enable precise constant current (CC) regulation and simplified
circuit design.
- And a broad portfolio of high
voltage MOSFETs, rectifiers, and diodes.
“Working closely with our customers to develop practical
solutions is central to everything we do at Fairchild,” Tan added.
“We are proud of the work our China GPRC team has done to bring
this innovative, and energy-efficient, LED lighting solution to our
customers. Fairchild’s latest IC technologies and system expertise,
along with our ongoing support, will enable our customers to
quickly deploy this new solution, bring new LED lighting products
to market and provide a competitive advantage in the market
place.”
Fairchild’s Global Power Resource Centers are a valuable
resource for system design engineers, enabling them to quickly
differentiate their designs and shorten time-to-market. The centers
were established to deliver innovative, efficient power management
and mobile solutions targeting a wide range of applications both
locally and around the world. This solution was developed at one of
Fairchild’s GPRC locations in China. The company has other centers
in the United States, Germany, South Korea and Brazil.
View more information on LED lighting solutions @
http://www.fairchildsemi.com/markets/lighting/led/index.html
Contact Information:
For information on our GPRCs, products, design tools and sales
contacts, please visit: http://www.fairchildsemi.com/cf/.
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) – global presence, local
support, smart ideas. Fairchild delivers energy-efficient,
easy-to-use and value-added semiconductor solutions for power and
mobile designs. We help our customers differentiate their products
and solve difficult technical challenges with our expertise in
power and signal path products. Please contact us on the web at
www.fairchildsemi.com.
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