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LED Traffic Signals Solutions

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Created on: Feb 2, 2011 3:49 PM by Kcourtneynewark - Last Modified:  Apr 2, 2011 7:45 PM by Kcourtneynewark

Lighting Solutions - LED Traffic Signals

LEDs have already replaced traditional incandescent lamps in traffic light applications for their high efficiency, low power consumption and long life. Traffic lights use high brightness LEDs connected in a combination of series and parallel to build a LED cluster. To realize specific luminous distribution intensity, an additional optical design (lenses) is necessary. If traffic lights are driven by AC power, an AC-DC circuit is required to convert AC to DC power that is suited for LED driver to drive LED cluster/string. MCU is used to implement the control over LED driver so as to give correct traffic signals.

Usually LED traffic lights are equipped with RS-485 port or wireless receiver module (GPRS module for example) which is controlled by MCU to communicate with control center in a large area. In addition, as the green energy technology continues to evolve, some LED traffic lights are capable of utilizing solar energy as their power source by integrating solar panel and battery in power systems to capture and store the solar energy.

 

   High brightness LEDs in traffic light applications are normally offered in 3mm-5mm package and are available from Avago, Cree, Lumex and Vishay. National Semiconductor, Linear Technology and ON Semiconductor can provide LED drivers for traffic light applications.

led traffic.jpg

 

APPLICATION NOTES

AVAGOLEDSoldering and Handling of High BrightnessAN5334Click here
BRIDGELUXLEDEffective Thermal Management of Bridgelux LED ArraysAN10Click here
BRIDGELUXLEDHandling and Assembly of Bridgelux LED ArraysAN11Click here
BRIDGELUXLEDElectrical Drive Considerations for Bridgelux LED ArraysAN12Click here
BRIDGELUXLEDReflow Soldering of Bridgelux LED ArraysAN15Click here
BRIDGELUXLEDOptical Considerations for Bridgelux LED ArraysAN16Click here
DIODES INC.Buck LED Driver12Vac LED Driving without smoothing capacitorsAN56ZXLD1360ET5TAClick here
DIODES INC.Buck LED DriverCommon anode topology with Zetex hysteretic convertersAN64ZXLD1360ET5TAClick here
DIODES INC.Buck LED DriverGetting more out of the ZXLD1350ET5 – dimming techniquesAN47ZXLD1350ET5Click here
FAIRCHILD SEMIPowerDesigning Asymmetric PWM Half-Bridge Converters with a Current Doubler and Synchronous RectifierAN-4153Click here
FAIRCHILD SEMIPowerSafety, EMI and RFI ConsiderationsAN-42007Click here
FREESCALE SEMIMCUDeveloper's Serial Bootloader for M68HC08 and HCS08 MCUsAN2295MC68HC908Click here
FREESCALE SEMIMCUEEPROM Emulation Using FLASH in MC68HC908QY/QT MCUsAN2346MC68HC908Click here
FREESCALE SEMIMCUGenerating Clocks for HC908 MCU FamiliesAN2508MC68HC908Click here
FREESCALE SEMIMCUInitial Trimming of the MC68HC908 ICGAN2498MC68HC908Click here
FREESCALE SEMIMCULow-Cost Programming and Debugging Options for M68HC08 MCUsAN2317MC68HC908Click here
FREESCALE SEMIMCUMC68HC908EY16 ESCI LIN 1.3 DriversAN2575MC68HC908Click here
FREESCALE SEMIMCUMigrating from the MC68HC908QY to the MC9S08SHAN3590MC68HC908Click here
FREESCALE SEMIMCUUsing FLASH as EEPROM on the MC68HC908GP32AN2183MC68HC908Click here
FREESCALE SEMIMCUUsing MC68HC908 On-Chip FLASH Programming RoutinesAN1831MC68HC908Click here
IRLED DriverHigh-Voltage Off-Line HB-LED ControlClick here
IRLED DriverOff-Line LED Control CircuitClick here
IRLED DriverSimple, Efficient, High-Brightness-LED ControlClick here
IRLED DriverSolving high-voltage off-line HB-LED constant-current control-circuit issuesClick here
IRLED DriverUniversal Input (90 VAC – 265 VAC) LED Driver Using IRS2541AN1131Click here
LINEAR TECHNOLOGYLED DriverVersatile High Power LED Driver Controller Simplifies DesignDN406LTC3783Click here
MICROCHIPMCUMigrating Designs from PIC16C74A/74B to PIC18C442-I/PAN716PIC16CClick here
MICROCHIPMCUROM Code Submission Application NotePIC16CClick here
MICROCHIPMCUUsing the PICmicro MSSP Module for Master I2C CommunicationsPIC16CClick here
NATIONAL SEMIBuck LED DriverApplication Note 1192 Overture™ Series High Power SolutionsAN-1192LM3405Click here
NATIONAL SEMIBuck LED DriverApplication Note 1500 LM3402/02HV Demo BoardAN-1500LM3405Click here
NATIONAL SEMIBuck LED DriverApplication Note 1529 LM3430SD/NOPB Evaluation BoardAN-1529LM3430SD/NOPBClick here
NATIONAL SEMIBuck LED DriverApplication Note 1545 LM3404/LM3404HV Evaluation BoardAN-1545LM3405Click here
NATIONAL SEMIBuck LED DriverApplication Note 1585 LM3402 and LM3404 High Power PSOP-8 Evaluation BoardAN-1585LM3405Click here
NATIONAL SEMIBuck LED DriverApplication Note 1590 LM3405 Demo BoardAN-1590LM3405AClick here
NATIONAL SEMIBuck LED DriverApplication Note 1629 Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 PackagesAN-1629LM3404HVClick here
NATIONAL SEMIBuck LED DriverApplication Note 1644 Powering and Dimming High-Brightness LEDs with the LM3405 Constant-Current Buck RegulatorAN-1644LM3405AClick here
NATIONAL SEMIBuck LED DriverApplication Note 1657 LM3401MM/NOPB Demo BoardAN-1657LM3405Click here
NATIONAL SEMIBuck LED DriverApplication Note 1685 LM3405A Demo BoardAN-1685LM3405AClick here
NATIONAL SEMIBuck LED DriverApplication Note 1750 LM3406 Evaluation BoardAN-1750LM3405Click here
NATIONAL SEMIPowerApplication Note 1764 LM3431 Evaluation BoardAN-1764LM3431Click here
NATIONAL SEMIBuck LED DriverApplication Note 1839 LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation BoardAN-1839LM3404HVClick here
NATIONAL SEMIBuck LED DriverApplication Note 1853 COT Drivers Control LED Ripple CurrentAN-1853LM3405Click here
NATIONAL SEMIPowerApplication Note 1872 LM3423 Boost Evaluation BoardAN-1872LM3423Click here
NATIONAL SEMIBuck LED DriverApplication Note 1899 LM3405A eMSOP Evaluation BoardAN-1899LM3405AClick here
NATIONAL SEMIPowerApplication Note 1907 LM3423 Buck-Boost Configuration Evaluation BoardAN-1907LM3423Click here
NATIONAL SEMIBuck LED DriverApplication Note 1954 LM3409 Demonstration BoardAN-1954LM3405Click here
NATIONAL SEMIBuck LED DriverApplication Note 1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs CoolAN-1982LM3404Click here
NATIONAL SEMILED DriverDesigning a Boost LED Driver Using the LM5022MM/NOPBAN166LM5022MM/NOPBClick here
ON SEMIPowerCompensation of a PFC Stage Driven by the NCP1654AND8321/DNCP1654Click here
ON SEMIPowerUsing the NUD4001 to Drive High Current LEDsAND8198/DNUD4001Click here
ON SEMILED DriverUniversal Input, 5 W, LED BallastDN06027Click here
ON SEMILED Driver7W, 90-135Vac,500mA LED DriverDN06050/DNCP1216Click here
ON SEMIPWM ControllerA 6 W/12 W Universal Mains Adapter with the NCP101XAND8142/DNCP101XClick here
ON SEMIPWM ControllerDesigning Converters with the NCP101X FamilyAND8134/DNCP101XClick here
ON SEMIPWM ControllerEvaluating the Power Capability of NCP101X MembersAND8125/DNCP101XClick here
ON SEMIPWM ControllerImplementing Simple Brown-Out Solution for NCP101X SeriesAND8272/DNCP101XClick here
ON SEMILED DriverImproving the Power Factor of Isolated Flyback Converters for Residential ENERGY STAR® LED Luminaire Power SuppliesDN06051Click here
ON SEMIPWM ControllerIncreasing the Efficiency of Low Power Converters with Resonant SnubbersAND8296/DNCP101XClick here
ON SEMILED DriverLow Power, Off-Line, CVCC Power SupplyDN06037Click here
ON SEMIPowerNUD4001 and NUD4011DR2G Current Sources for LEDs Lighting ApplicationsAND8156/DNUD4001Click here
ON SEMIPowerNUD4001 Dimming Ability Demonstration BoardAND8234/DNUD4001Click here
ON SEMIPowerNUD4001 LED Driver Demonstration BoardsAND8197/DNUD4001Click here
ON SEMIPWM ControllerOffline Buck Converter with Tapped Inductor Improves PerformanceAND8318/DNCP101XClick here
ON SEMIPWM ControllerPerformance Improvements to the NCP1012GEVB Evaluation BoardAND8132/DNCP1012GEVBClick here
ON SEMIPWM ControllerSimple Secondary Side Vcc Source for Low Power CVCC Power SuppliesAND8395/DNCP101XClick here
ON SEMIPWM ControllerStability Analysis in Multiple Loop SystemsAND8327/DNCP101XClick here
ON SEMIPWM ControllerUnderstanding Loop Compensation with Monolithic SwitchersAND8334/DNCP101XClick here
ON SEMIBoostUnderstanding the Noise Issue Out of Inductor Based DC-DC ConverterAND8172/DNCP5007Click here
POWER INTEGRATIONSPWM ControllerLinkSwitch-II Family Design GuideAN-44LinkSwitch-II FamilyClick here
STMICROELECTRONICSPowerControl Loop Modeling of L6561 Based TM PFCAN1089L6561Click here
STMICROELECTRONICSPowerDesign Tips for L6561 Power Factor Corrector in Wide RangeAN1214L6561Click here
STMICROELECTRONICSPowerElectronic Ballast with PFC Using L6574 and L6561AN993L6561Click here
STMICROELECTRONICSPowerFlyback Converters with the L6561 PFC ControllerAN1060L6561Click here
STMICROELECTRONICSMCUSTM8L family power managementAN3147STM8LClick here
STMICROELECTRONICSMCUSTM8 in-application programming (IAP) using a customized user-bootloaderAN2659STM8LClick here
STMICROELECTRONICSMCUImplementing a simple ADC using the STM8L101xx comparatorAN2979STM8LClick here
STMICROELECTRONICSMCUGetting started with STM8LAN3029STM8LClick here
STMICROELECTRONICSMCUEMC guidelines for STM8 microcontrollersAN2860STM8LClick here
STMICROELECTRONICSMCUA/D converter on STM8L devices: description and precision improvement techniquesAN3137STM8LClick here
TEXAS INSTRUMENTSBoostExtending Soft Start Time in TPS6107x Family of BoostSlva307TPS6107xClick here
TEXAS INSTRUMENTSBoostHigh Voltage Power Supply Using the Highly Integrated TPS61040Slva245TPS61040Click here
TEXAS INSTRUMENTSBoostImproved Overvoltage Protection for the TPS61040/1Slva227TPS61040/1Click here
TEXAS INSTRUMENTSBoostMinimizing Ringing at the Switch Node of a Boost ConverterSlva255TPS61059Click here
TEXAS INSTRUMENTSBoostOptimizing Transient Response of Internally Compensated DC-DC ConvertersSlva289TPS61059Click here
TEXAS INSTRUMENTSBoostPerforming Accurate PFM Mode Efficiency MeasurementsSlva236TPS61059Click here
TEXAS INSTRUMENTSBoostTPS61500PWP Application reportSlva326TPS61500PWPClick here
TEXAS INSTRUMENTSPowerUC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal InputDN-66UC3854Click here
TEXAS INSTRUMENTSBoostUsing the TPS61040 in High Voltage ApplicationsSlva209TPS61040Click here
ManufacturerProduct TypeAN TitleAN NumberPart NumberURL

 

WHITE PAPERS

AVAGOLEDThermal Modeling for Application of High Power LEDClick here
NATIONAL SEMILEDMatching Driver to LEDClick here
ON SEMIPowerHalogen Desk Lamp Conversion to LEDsClick here
PHILIPSLEDEvaluating the Lifetime Behavior of LED SystemsClick here
TEXAS INSTRUMENTSLEDWhite LED Power Supply Design TechniquesClick here
ManufacturerProduct Type White Paper Title URL

 

EVALUATION KITS

 

LINEAR TECHNOLOGYBuck-BoostLTC3454EDD#PBF Evaluation Kit Quick Start GuideLTC3454EDD#PBFLTC3454EDD#PBFClick here
LINEAR TECHNOLOGYBuck LED DriverLT3474EFE#PBF Evaluation kit Evaluation Kit Quick Start GuideDC842ALT3474EFE#PBFClick here
LINEAR TECHNOLOGYLED DriverLT3476EUHF#PBF Quadruple High Power LED Driver in Buck ModeLM3402-04LT3476EUHF#PBFClick here
LINEAR TECHNOLOGYLED DriverDC1482A - LT3519EMS Evaluation KitDC1482ALT3519Click here
LINEAR TECHNOLOGYLED DriverLTM8040EV#PBF Demo Board | 36V, 1A Buck LED DriverDC1274ALTM8040EV#PBFClick here
NATIONAL SEMILED DriverLM3401/LM3404 Fast Dimming and True Constant LED Current Evaluation BoardLM3404FSTDIMEVLM3404Click here
NATIONAL SEMILED DriverLM3404/LM3404HV Evaluation BoardLM3404EVAL/NOPBLM3404Click here
NATIONAL SEMILED DriverLM3402 and LM3404 High Power PSOP-8 Evaluation BoardLM3404Click here
NATIONAL SEMIBoostLM3410X LED Driver 5-Pin SOT-23 Demo BoardLM3410XClick here
NATIONAL SEMIBoostLM3410X LED Driver 6-Pin LLP Demo BoardLM3410XClick here
NATIONAL SEMIDC-DC converterLM5027AMH/NOPB Evaluation BoardLM5027A-EVALLM5027AMH/NOPBClick here
NATIONAL SEMILED DriverLM3424 Boost Evaluation BoardLM3424BKBSTEVAL/NOPBLM3424Click here
NATIONAL SEMILED DriverLM3410X 190mA, LED Driver 6-Pin LLP Evaluation BoardLM3410XClick here
NATIONAL SEMILED DriverDesign and Programming Examples for Lighting Management Unit LP5526TL/NOPBLP5526TL/NOPBClick here
TEXAS INSTRUMENTSLED DriverTLC59116EVM-390 User's GuideTLC59116EVM-390TLC59116IPWRClick here
TEXAS INSTRUMENTSBoostTPS61054EVM-350 User's GuideTPS61054EVM-350TPS61054DRCTClick here
TEXAS INSTRUMENTSBoostTPS61059EVM-141User's GuideTPS61059EVM-141TPS61059Click here
TEXAS INSTRUMENTSBoostTPS61500EVM-369 User's GuideTPS61500EVM-369TPS61500PWPClick here
ManufacturerProduct TypeEvaluation Kits TitleEVKs Part NumberPart NumberURL

 

TRAINING

LINEAR TECHNOLOGYLED DriverLT3518 Full-Featured 45V, 2.3A Switch Current LED DriverLT3518Click here
LINEAR TECHNOLOGYLED DriverLT3756-2 100V Input, 100V Output Multi-Topology LED Driver ControllerLT3756Click here
LINEAR TECHNOLOGYLED DriverHigh Current LED Driver with Three-State ControlLT3743Click here
NATIONAL SEMILED DriverLED Bulb Replacement Using National LED Drivers & Nuventix SynJet® Coolers on PowerWise Design TVClick here
NATIONAL SEMILED DriverLED Driver Design for General IlluminationClick here
NATIONAL SEMILED DriverLM3409 High-Brighness LED 1000:1 Dimming DemoLM3409Click here
NATIONAL SEMIBuck-BoostLM3445 TRIAC Dimmable LED Driver LIGHTFAIR DemoLM3445Click here
NATIONAL SEMIBuckLM3409 High-Brighness LED 1000:1 Dimming DemoLM3409Click here
NATIONAL SEMIBuckLED Driver Design for General IlluminationLM3401MM/NOPBClick here
NATIONAL SEMIBuckWEBENCH LED Designer -- LED Driver Design in MinutesLM3402Click here
NATIONAL SEMIBuckLM8502 Smart Lighting Controller DemoLM8502Click here
NATIONAL SEMILED DriverTRIAC Dimming with the LM3445LM3445Click here
NATIONAL SEMIWEBENCH® LED Designer & Architect WebinarClick here
NATIONAL SEMIWEBENCH® LED Architect Software Guided TourClick here
NATIONAL SEMIDesigning LED Driver Circuits Using WEBENCH LED DesignerClick here
NATIONAL SEMILED DriverLM3424 Thermal Foldback - Easy Thermal Control for LED LightingLM3424Click here
NATIONAL SEMILED DriverLM3464MH/NOPB - Accurately Drive Multiple Strings with Just One LED DriverLM3464MH/NOPBClick here
NATIONAL SEMILED DriverAn Introduction to High Brightness LED Applications and Driving TechniquesClick here
NATIONAL SEMILED DriverLED Lighting CourseClick here
NATIONAL SEMILED DriverMatching Driver to LEDClick here
TEXAS INSTRUMENTSLED DriverTPS62260LED-338: Color Lighting Innovations with a New LED BoardTPS62260LED-338Click here
TEXAS INSTRUMENTSDC-DCTI LED Lighting Power Solutions OverviewClick here
TEXAS INSTRUMENTSPowerPower Design with SwitcherPro and TINA-TIClick here
ManufacturerProduct TypeTraining TitlePart NumberURL

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