LED LIGHTING

LED Traffic Lights

LEDs have already replaced traditional incandescent lamps in traffic signal applications for their high efficiency, low power consumption and long life. LED Traffic Signals use both high brightness & high power 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 signals 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.

More

Usually LED traffic signals are equipped with RS-485 port or wireless module (GPRS module) 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 signals 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.

Less

Hover over the blocks to view recommended products for this solution:

Providing PWM signal
Click for full parts list

Managing the LED drivers and communicate with control center.
Click for full parts list

Drive the LED arrays with constant current
Click for full parts list

High brightness/high power LED arrays with red, yellow and green colors.
Click for full parts list

AC164133  - Buck/Boost Converter PICtail PlusAC164133  - Buck/Boost Converter PICtail Plus
Microchip

The Buck/Boost Converter PICtail™ Plus Daughter Board provides an easy and economical way to evaluate Switch Mode Power Supply applications with the dsPIC33F GS Digital Power Conversion family.
LED Lighting Development KitDM330014  - LED Lighting Development Kit
Microchip
Microchip's Digital LED Lighting Development Kit enables designers to quickly leverage the capabilities and performances of the dsPIC33F GS series of Digital Signal Controllers (DSCs) to develop LED-lighting products.
MCP1630 Boost Mode LED Driver Demo BoardMCP1630 Boost Mode LED Driver Demo Board
Microchip

The MCP1630 Boost Mode LED Driver Demo Board is a step-up, switch-mode, DC-DC converter used for power LED applications.
MCP1650 3W White LED Demo BoardMCP1650 3W White LED Demo Board
Microchip

The MCP1650 3W White LED Demo Board demonstrates Microchip's MCP165X Boost Controller product family in a battery powered white LED application.
MCP1650 Multiple White LED Demo BoardMCP1650 Multiple White LED Demo Board
Microchip

The MCP1650 Multiple White LED Demo Board uses the MCP1650 IC to power the nine white LEDs which are connected in series.
TMDSDCDCLEDKIT - DC-DC LED Developers KitBUYTMDSDCDCLEDKIT - DC-DC LED Developer's Kit
Texas Instruments

The kit is based on the Piccolo MCU and the controlCARD platform. One Piccolo MCU is able to directly control eight separate DC/DC power stages as well as up to eight LED strings of various LED types and string lengths.
ImageDescription 
MicrochipMCUHigh Power LED Flashlight Demonstration – Advanced Control and Increased EfficacySchematicsClick here
ManufacturerProduct TypeAN TitleAN NumberPart NumberURL
NATIONAL SEMICONDUCTOR LED DriverMatching Driver to LEDClick here
ManufacturerProduct TypeWhite Paper TitleURL
NATIONAL SEMICONDUCTOR LED DriverLM3407 Evaluation Board Reference Design LM3407Click here
ManufacturerProduct TypeEvaluation Kits TitleEVKs Part NumberPart NumberURL
NATIONAL SEMICONDUCTOR LED DriverWEBENCH LED Designer -- LED Driver Design in MinutesLM3402Click here
NATIONAL SEMICONDUCTOR LED DriverWEBENCH® LED Designer & Architect WebinarClick here
NATIONAL SEMICONDUCTOR LED DriverWEBENCH® LED Architect Software Guided TourClick here
NATIONAL SEMICONDUCTOR LED DriverDesigning LED Driver Circuits Using WEBENCH LED DesignerClick here
CreeHP LEDXLamp® Color LEDs Click here
MICROCHIPLED DriverIntroducing the dsPIC33F GS series devices dsPIC33FGSClick here
ManufacturerProduct TypeTraining TitlePart NumberURL