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LED Solar Garden Lighting Solution From STMicroelectronics

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Solution for LED Solar Garden Lighting from STMicroelectronics

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LED Solar Garden Lighting Solution From STMicroelectronics

  1. 1. LED Solar Garden Lighting Solution From STMicroelectronics
  2. 2. Agenda <ul><li>Purpose </li></ul><ul><ul><li>Solution for LED Solar Garden Lighting from STMicroelectronics </li></ul></ul><ul><li>Outline </li></ul><ul><ul><li>Different Types of Garden Lights </li></ul></ul><ul><ul><li>Types of Silicon Solar Cells, Solar Battery Charging system </li></ul></ul><ul><ul><li>Overview of Current Battery Technology, Primary and Rechargeable </li></ul></ul><ul><ul><li>Simple LED Driver Circuit, Analog and Digital LED Driver </li></ul></ul><ul><ul><li>Garden Lighting Solution From STMicroelectronics </li></ul></ul><ul><li>Content </li></ul><ul><ul><li>23 pages </li></ul></ul>
  3. 3. Different Types of Garden Lights <ul><li>Spotlights : </li></ul><ul><ul><li>To light certain details or features in the garden you can </li></ul></ul><ul><li>choose spotlights. These spotlights can be directed and </li></ul><ul><li>are available in various models and materials </li></ul><ul><li>Uplights/Orientation lighting: </li></ul><ul><ul><li>Another way to illuminate certain features is to </li></ul></ul><ul><ul><li>apply uplights, fittings which illuminate details from a </li></ul></ul><ul><ul><li>fixed position. (e.g. from the ground) </li></ul></ul><ul><li>Post lighting: </li></ul><ul><ul><li>Straight standing lighting can be placed along </li></ul></ul><ul><li>pathways, on lawns and between plants. </li></ul><ul><li>These models are available with halogen lamps, </li></ul><ul><li>light bulbs and LED’s </li></ul><ul><li>Wall lighting: </li></ul><ul><ul><li>Wall lighting is fitted with LED or halogen </li></ul></ul><ul><ul><li>lightsource. Simple to fix to fences/walls etc. </li></ul></ul>
  4. 4. Solar Cells <ul><li>Convert solar energy into electricity </li></ul><ul><li>Typical efficiency of 50-100mW/in2 </li></ul><ul><li>Useful in recharging batteries at remote </li></ul><ul><li>locations </li></ul><ul><li>Limited by availability of direct sunlight, size, and fragility </li></ul><ul><li>Solar cells are often electrically connected and </li></ul><ul><li>encapsulated as a module </li></ul><ul><li>Batteries are used to store the energy </li></ul><ul><li>that is not needed immediately. </li></ul>
  5. 5. Types of Silicon Solar Cells <ul><li>Indirect semiconductor </li></ul><ul><li>efficiency: 20 % </li></ul><ul><li>lifetime: 25-30 years </li></ul><ul><li>Indirect semiconductor </li></ul><ul><li>efficiency: 15 % </li></ul><ul><li>lifetime: 25-30 years </li></ul><ul><li>Indirect semiconductor </li></ul><ul><li>efficiency: 8 % </li></ul><ul><li>only short range order </li></ul>
  6. 6. Solar Battery Charging System Block Diagram of Solar Battery Charging system
  7. 7. Overview of Current Battery Technology <ul><li>Two Types of Batteries </li></ul><ul><ul><li>Primary </li></ul></ul><ul><ul><li>Rechargeable </li></ul></ul><ul><li>Different Types of Primary Batteries </li></ul><ul><ul><li>Carbon-Zinc </li></ul></ul><ul><ul><li>Alkaline </li></ul></ul><ul><ul><li>Silver Oxide </li></ul></ul><ul><ul><li>Zinc Air (ZiO2) </li></ul></ul><ul><ul><li>Lithium (LiFeS2 and LiMnO2) </li></ul></ul><ul><li>Different Types of Rechargeable Batteries </li></ul><ul><ul><li>NiCad </li></ul></ul><ul><ul><li>NiMH </li></ul></ul><ul><ul><li>Li-Ion </li></ul></ul>
  8. 8. Comparison of Primary Battery Types 1% 340-500 32-260 10 - 3000 1.5, 3.0 Lithium 5% (sealed) 470-1450 245-455 30-1000 1.4 Zinc Air 3% 250-500 155-285 5-200 1.5 Silver Oxide 4% 150-440 125-225 10 - 5000 1.5 Alkaline 5% 100-180 105-195 10 - 5000 1.5 Carbon- Zinc Capacity loss per YEAR (@ 20C) Volumetric Energy Density (WHr/l) Gravimetric Energy Density (WHr/kg) Cell Capacity (mAh) Cell Voltage (V) Chemistry
  9. 9. Comparison of Rechargeable Battery Types
  10. 10. Simple LED Driver Circuit
  11. 11. Analog LED Driver Block Diagram of LED Driver: Analog AC IN Bridge Rectifier Power Factor Correction Buck / Boost Controller DC / DC Converter Dimming control Input LED String
  12. 12. Digital LED Driver Block Diagram of LED Driver: Digital AC IN Bridge Rectifier Voltage Regulator MCU MOSFET Gate Driver LED String MOSFET Gate Driver MOSFET Gate Driver ADC PWM LIN / CAN Transceiver and Connectivity Brake Lights Rear Lights Fog Lamps
  13. 13. PWM Dimming Control <ul><li>Many portable LED applications require </li></ul><ul><li>Dimming i.e. brightness control. </li></ul><ul><li>In applications such as LCD backlighting, </li></ul><ul><li>dimming provides brightness and contrast adjustment. </li></ul><ul><li>Two types of dimming are available: </li></ul><ul><li>1) Analog 2) PWM method </li></ul><ul><li>With analog dimming, 50% brightness is achieved by applying 50% of the maximum current to the LED </li></ul><ul><li>PWM dimming is achieved by applying full current to the LED at a reduced duty cycle. For 50% brightness, full current is applied at a 50% duty cycle. </li></ul><ul><li>The Frequency of the PWM signal must be above 100 Hz to ensure that the PWM pulsing is not visible to the human eye </li></ul><ul><li>To provide the most flexibility and ease of integration, the LED driver should be able to accept PWM frequencies as high as 50 kHz. </li></ul>PWM Signal
  14. 14. Garden Lighting Solution From STMicroelectronics 10W Dimmable LEDs driver board layout
  15. 15. Light Sources <ul><ul><li>Higher energy efficiency, in terms of lumens per watt </li></ul></ul><ul><ul><li>Direct light beam for increasing system performance </li></ul></ul><ul><ul><li>Dynamic colour control technology </li></ul></ul><ul><ul><li>Full dimmable without colour variation </li></ul></ul><ul><ul><li>No mercury and no UV or heat in light beam </li></ul></ul><ul><ul><li>Low voltage operation, suitable for safety purpose in SELV systems. </li></ul></ul>
  16. 16. Schematic Diagram for VIPer22A-E
  17. 17. Dimming Control Circuit Dimming technique using series switch Dimming technique using the new methodology
  18. 18. High Power LED Selection Guide 1W 3.42   45 Cool White 20M5533 1242360 LK1-1-W Lumidrives 1W 3.5 70° 30 White 22M4357 1325163 SML-LX1610UWC Lumex 1W 4.1 110° 80 White 89M5420 1649503 9900-1201-371 Weldon Technologies 3W   50° 40 White 05M0377 1228892 ILL3B0001I CML Innovative Technologies 3*3W   25° 120 Warm White 05M0419 1228926 ILL3A0004I CML Innovative Technologies 3W 3.15 140° 100 Cool White 08N2482 1555331 LXML-PWC1-0100 Lumileds 1W 3.99 140° 45 Cool White 93K5864 1106548 LXHL-PW01 Lumileds 1W 3.99 110° 45 Cool White 93K5789 1106643 LXHL-BW02 Lumileds 4*4.5W 16.4 130° 240 Warm White 33P7262 1680592 LECWE2B-MZPY-MRNU OSRAM 4*4.5W 16.4 120° 230 Warm White 33P7257 1680588 LECWE2A-LYNX-URVU OSRAM 1.2W   30°   Warm White 61M5937 1472644 DX1-W3-733-L30W OSRAM 3.6W   20°   Warm White 61M5860 1472632 DP3-W3-733 OSRAM 1W 3.7 135° 30 Warm White 27M3299 1498017 OVTL01LGAWWS OPTEK 1W 2.8 60° 52 White 45M7033 1498004RL OVSPWBCR44 OPTEK 1W 3.6 120° 75 White 29M9862 1498003 OVSPWBCR4 OPTEK 4W 3.5 90° 62 Neutral White 59M3588 1440723 XREWHT-L1-0000-006E6 Cree 3W 4 100° 57 White 59M3595 1440711 XR7090WT-G1-0003 Cree 3W 3.9 110° 430 Cool White 40P1429 1688706 MCE4WT-A2-0000-000M01 Cree 3W 4.3 140° 150 Neutral White 14R8743 1718401 ASMT-JN31-NTV01 Avago 1W 4 120° 73 Cool White 58M3698 1618674 ASMT-MW00-NJKZ0 Avago 1W 3.5 140 65 Neutral White 71P7899 1698191 ASMT-JN11-NST01 Avago 12*1W 4 110° 60 Cool White 58M3623 1618704 ADJD-WM40-NKKZ0 Avago P_rating VF (V) Viewing Angle Lumen (lm) Color Newark # Farnell # Part Number Manufacturer
  19. 19. MCU Selection Guide 36 2 51 6K 32 32-Bit MCU,SMD,32K Flash 59M2177 1447628 STM32F101R6T6 ST 8 4 16 256 4 8Bit Flash MCU, SMD, 18F1230, SOIC18 34M8009 1332231 PIC18F1230-I/SO Microchip 8 4 16 256 4 8Bit Flash MCU, SMD, 18F1230, DIP18 88K5938 1332230 PIC18F1230-I/P Microchip 16 4 4 128 2 MCU, 8Bit, 2K Flash PDIP8 22M5760 1579711 MC9S08QD2CPC Freescale 8 4 17 384 4 8Bit MCU 4K Flash, 908GR4, SOIC28 62K5279 1148422 MC908GR4CDWE Freescale 12.8 4 13 128 4 8Bit MCU 4K Flash, ADC, 68HC908 25K5959 8613656 MC68HC908QY4CPE Freescale 12.8 4 5 128 4 8Bit MCU 4K Flash, ADC, 68HC908 25K5943 8613567 MC68HC908QT4CPE Freescale 20 4 6 256 4 8Bit MCU, 4K Flash, 5V, PDIP8 23M5072 1288352 ATTINY45-20PU Atmel 20 4 6 128 2 AVR MCU, 2K Flash, 128B RAM, DIP8 58M3778 1455142 ATTINY25-20PU Atmel 10 4 6 64 1 8Bit 1K Flash MCU, DIP8 96K6523 9171576 ATTINY13V-10PU Atmel 20 4 6 64 1 MCU, 8Bit, AVR, 1K Flash, 10MLF 15R0298 1715516 ATTINY13A-MMU Atmel 20 4 6 64 1 AVR MCU, 1K Flash, 64B RAM, SOIC8 58M3771 1455133 ATTINY13-20SSU Atmel 20 4 6 64 1 8Bit1K Flash MCU, DIP8 96K6521 9171550 ATTINY13-20PU Atmel 12 4 4 32 1 MCU, 8Bit, AVR, 1K Flash, 6SOT-23 26R5645 1748538 ATTINY10-TSHR Atmel Clock (MHz) ADC I/O RAM (Byte) Flash (KB) Description Newark # Farnell # Part Number Manufacturer
  20. 20. Battery Charger Selection Guide -- +24V 20 Charge Controller, 20A, Sunsei 58M4323 1462504 CMP-20A RALOSS -- +24V 10 Charge Controller, 10A, Sunsei 58M4322 1462503 CMP-10A RALOSS -- +12/24V 25 Charge Controller, 25A, Sunsei 1096183 SE-CC25 ICP Solar Tec 101.6*79.5*35.1 +12/24V 25 Charge Controller, 25A, Sunsei 10R7222 1702994 CC-25000 ICP Solar Tec 70*57*28 +12/24V 10 Charge Controller, 10A, Sunsei 10R2868 1702992 CC-10000 ICP Solar Tec Dimension (mm) L*W*H Output(V) I_out (A) Description Newark # Farnell # Part Number Manufacturer
  21. 21. Lead-acid Battery Selection Guide 441*509*86.2 +12 9 Lead Acid Battery 50P9301   PW5130N1750-EBM2U Eaton Powerware 5.95''*3.9''*3.86'' +12 12 Lead Acid Battery 72C7107   LCRA1212P1 Dantona Industries 5.95''*3.94''*2.54'' +12 7 Lead Acid Battery 14C4016   LC-R127R2P1 Dantona Industries 7.7''*7.09''*5.12'' +12 33 Lead Acid Battery 15C9855   LC-LA1233P Dantona Industries 7.13''*6.57''*2.99'' +12 17 Lead Acid Battery 15C9863   LC-1217P Dantona Industries 175.7*166.7*125.9 +12 26 Lead Acid Battery 89C2825   G12V26AH10EP Enersys 175.5*129.8*83.6 +12 13 Lead Acid Battery 89C2821   G12V13AH10EP Enersys 181*167*76 +12 18 Battery,Europa+GEL,12V,18AH 5085342 BEG120180 Camden Electronics 150*100*97 +12 12 Battery,Europa+GEL,12V,12AH 5085330 BEG120120 Camden Electronics 151*99*65 +12 7.5 Battery,Europa+GEL,12V,7.5AH 5085329 BEG120075 Camden Electronics 353*190.175 +12 65 Battery,12V,65AH 463498 A512/65G Sonnenschein 210*175*175 +12 40 Battery,12V,40AH 463486 A512/40G Sonnenschein 97.5*51*49.5 +12 1.2 Battery,12V,1.2AH 463401 A512/1.2S Sonnenschein 113*90*70 +12 2.5 Battery,12V,2.5AH,2X3,CYCLON 1218977 9819-0020 Hawker Energy 133*90*77 +12 5 Battery,12V,5AH,2X3,S/W LDS 1218984 9800-0115 Hawker Energy Dimension (mm) L*W*H Output(V) Capacity(Ah) Description Newark # Farnell # Part Number Manufacturer
  22. 22. Peripheral Selection Guide Link Link Temperature Sensor Link Link Inductor Link Link Capacitor Link Link LED Driver Link Link Crystal Link Link MosFET Link Link Light Sensor Newark Farnell  
  23. 23. Additional Resource <ul><li>For ordering Solution Related Solution on LED Solar Garden Lighting , please click the part list or </li></ul><ul><li>Call our sales hotline </li></ul><ul><li>For more product information go to </li></ul><ul><ul><li>http://www.element-14.com/community/docs/DOC-18705/l/technology-primer--led-solar-garden-lighting-solution </li></ul></ul><ul><li>Visit Element 14 to post your question </li></ul><ul><ul><li> www.element-14.com </li></ul></ul><ul><li>For additional inquires contact our technical service hotline or even use our “Live Technical Chat” online facility </li></ul>

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