Fairchild Semiconductor’s Solution for LED Street Lighting

Jul 29, 2010 Fairchild Semiconductor’s China-based Global Power Resource SM Centre (GPRC) has developed a complete LED street lighting solution.

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.

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. 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 <7W up to >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.

www.fairchildsemi.com

Author:  BIO T&T

Back to the list


Reviews forum #FORUM# is not exist

Submit Product Review

Download Review Form

LED Jobs Banner LED Directory Banner


Recent News

12/06/2011 Pleasanton Library Cuts Energy Use By 46% With Adura Technologies Wireless Lighting Controls

12/06/2011 Forepi Selects AIXTRON´s New 19x4-inch CRIUS II-XL

12/06/2011 Future Lighting Solutions Wins 2011 Best LED Service Provider Award

12/06/2011 Leica Microsystems Presented Its Latest Range of Innovative LED Illumination Modules for Microscopy

12/06/2011 Xicato Introduced 3000lm and 4000lm XLM LED Modules

12/06/2011 A.C. Lighting Inc Appointed LedGo North American Distributor

12/05/2011 Electronics Weekly Publishes Interview with Adrian Rawlinson, Marl International

12/05/2011 New ENCELIUM White Paper Examines How Addressable Dimming Controls Help Buildings Earn LEED Points

12/05/2011 i-Pix Satellite Mk II LED Fixtures Launched in September 2011 Gain Immediate Popularity

12/05/2011 Lumenpulse Unveiled Corporate Headquarters with "Evolution of Light" Event in Montreal, Canada

12/05/2011 Anolis Deliveres LED Architectural Lighting Solutions in South Africa

12/02/2011 Lighting Science Group's New 60-Watt Equivalent LED World Bulb Receives Consumer Electronics Show Best of Innovations Award

12/02/2011 Jim H. McClung Lighting Research Foundation Announced Funding of Research Projects

12/02/2011 Magnalight.com Introduced New Explosion Proof Handheld LED

12/02/2011 SDG&E LED Holiday Light Exchange Brings Energy Savings to Balboa Park, Chula Vista and Escondido

12/01/2011 ZENARO Presents New Louver Luminaires with T5 LED Tubes

12/01/2011 Arima Changzhi Ramps Up HB LED Capacity with AIXTRON G4 MOCVD Systems

12/01/2011 CSA's State-of-the-Art LED Lighting Laboratory Opened in Atlanta

11/30/2011 Chroma-Q™ Launched Three New LED Luminaires

11/30/2011 Cree Introduced the New LMH2 LED Module Family