VOTE NOW!
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Design 1/4
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Usability 2/4
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Creativity 3/4
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Content 4/4

People in rural areas have been using sooty kerosene lamps to dimly light their homes, children are suffering from lack of adequate lighting and they rely on dim, smoky, and dangerous kerosene-based lighting for their evening studies. In the initial days, I made this Solar Lamp for providing a low-cost solution by replacing their harmful kerosene lamps.


STEAM EDUCATION


I designed a kit for the Solar lamp for initiative in STEAM Education for KIDs. It will be a great start for them to learn Electronics and aware about use of renewable energy.










Features :


1. One day charging can give light up to 20-22 lumens (about three times the brightness of a kerosene lamp) for the entire night.


2. A 800 mAh AA battery can be charged fully in single day bright sunlight.


3. Uses high-quality AA NiMH battery which can work long period.


4. Uses a high-quality solar panel ( 2V / 160mA ) to charge the battery.


5. Automatically switches off in bright light to save charge and switch on in dark.


6. Battery over discharge protection circuit.


Advantages :


1. Improves literacy: Solar light bulb improves literacy because people can read after dark more easily than they can by a candle or kerosene lamp. 


2.Saves Energy: As the light is bulb is charged through solar energy (free energy) it saves energy.


3. Reduces air pollution: Use of solar light bulb decreases the amount of local air pollution. With a decrease in the amount of kerosene used for lighting, there is a corresponding reduction in the amount of pollution produced.


4. Reduces greenhouse gases: Solar light bulb gives light with no carbon dioxide (CO2) emissions.



PARTS :


1. Solar Panel ( 2V/160mA)

2. Straw Hat White LED ( 8mm )

3. Rechargeable AA/AAA battery ( 800mAh)

4. IC QX5252F

5. 33uH Inductor

6. Slide Switch

8. AA / AAA Battery Holder

9.PCB

10. Plastic Container

11.Aluminum Hanger


Assembly Guide


Full guide is available on Instructables


Working





The heart of Solar Lamp is a very small 4 legged IC QX5252F. It works very similar to "Joule Thief " circuit.


But the advantage of using this chip is that ,it does not require a bulky and heavy toroid. It do the same job using only a simple inductor, single AA / AAA battery and a LED.


Connection :

Pin-1 -> Solar panel positive terminal

Pin-2 -> Battery positive terminal and one leg of Inductor

Pin-3 -> All ground ( Solar panel,Battery and LED negative terminal)

Pin-4 -> Other leg of Inductor

Feb 18,2019
3,064 viewsReport item
  • Comments(5)
  • Likes(7)
You can only upload 1 files in total. Each file cannot exceed 2MB. Supports JPG, JPEG, GIF, PNG, BMP
    View More
    VOTING 15 votes
    • ron bitz from UNITED STATES OF AMERICA
      • 9
        design
      • 9
        usability
      • 9
        creativity
      • 9
        content
      9.00
    • Ilya Galkin from RUSSIAN FEDERATION, THE
      Senior hardware engineer
      • 6
        design
      • 10
        usability
      • 10
        creativity
      • 10
        content
      9.00
    • Omer Faruk Ucar from TURKEY
      Founder of the project ‘Lezzetli Robot Tarifleri’ In the frame of this project he produces Turkish contents about electronics/software and serves it to people for free. He produced many jammer devices mostly drone dropper weapons while working in electronic defense industry. He gave lessons to teachers about software and electronics in a program which supported by the government. And now he is working as a hardware engineer on SCADA systems syber security.
      • 4
        design
      • 5
        usability
      • 4
        creativity
      • 6
        content
      4.75
      • 8
        design
      • 8
        usability
      • 8
        creativity
      • 7
        content
      7.75
    • Engineer from
      • 8
        design
      • 7
        usability
      • 8
        creativity
      • 7
        content
      7.50
    • Catia Diaz from MEXICO
      Catia Diaz director of YouTube channel catykanal that was created to insentiate the taste for electronics with tutorials explained in a simple and fun way. Teacher with more than 3 years of experience in promoting the learning of electronics to children and young people.
      • 9
        design
      • 10
        usability
      • 10
        creativity
      • 5
        content
      8.50
    • Engineer from TURKEY
      • 6
        design
      • 5
        usability
      • 5
        creativity
      • 5
        content
      5.25
    • Jorge from SPAIN
      • 6
        design
      • 8
        usability
      • 6
        creativity
      • 7
        content
      6.75
    • Jiri Praus from CZECH REPUBLIC, THE
      If you got a low score from me, I don't think you fit for I can solder content. Sorry for that, at least I tried to rate your design. I am an artist. I design electronics and brass wire sculptures. www.jiripraus.cz
      • 8
        design
      • 6
        usability
      • 7
        creativity
      • 6
        content
      6.75
    • Oyvind Dahl from NORWAY
      NOTE: If you have a project that I don't think is for beginners (or I don't understand what it is/lacks documentation) - you'll automatically get a low score from me even though your project is really cool. Sorry! ABOUT: Author of Electronics For Kids. Creator of Ohmify.com and the electronics blog build-electronic-circuits.com.
      • 7
        design
      • 7
        usability
      • 7
        creativity
      • 6
        content
      6.75
    • Ever since I was a kid, I love tinkering with anything that involves energy from toys to cellphones. I love designing and creating projects that could be innovative with the use of electronics. I was also appointed team leader of the University of Sto. Tomas team for the Shell Eco-marathon Philippines Competition in 2018.
      • 9
        design
      • 10
        usability
      • 9
        creativity
      • 6
        content
      8.50
    • J_RPM from SPAIN
      My name is José Ramón Pueyo, I live in Spain. For more than 40 years he has worked in the radio communication sector, mainly with RF equipment and developing control and monitoring systems.Five years ago I opened a channel on YouTube (J_RPM) in order to share some developments and divulge technical information.
      • 9
        design
      • 9
        usability
      • 10
        creativity
      • 10
        content
      9.50
    • www.cursoderobotica.com
      • 10
        design
      • 10
        usability
      • 10
        creativity
      • 9
        content
      9.75
    • Engineer from INDIA
      • 9
        design
      • 9
        usability
      • 8
        creativity
      • 8
        content
      8.50
    • donutpap from UNITED STATES OF AMERICA
      • 7
        design
      • 6
        usability
      • 10
        creativity
      • 8
        content
      7.75
    View More