Solar Workshop

1. “Student Solar Ambassador Workshop 2019”
Hands-on training to assemble solar study lamps
21st October, 2019
Associated with IIT, Mumbai
Prepared By:-
Jinal K. Dhobi
Assi. Prof., EE Dept.,
Diwaliba Polytechnic, Mahuva

2. Introduction:
• In world now the energy demand increase rapidly.
• So fulfilling energy demands more fossil fuels are used which will be
extinguish it they are use at such a rate.
• So renewable energy are need to be use more and more as they are
freely available and more adequate.
• Uses of greener power reduce pollution and global warming.
31-10-2020
Solar Ambassador Workshop
2

3. Objective:
• To compensate growing energy demand by using renewable energy
source as solar.
• Introduce localized energy Self-sufficiency for sustainability.
• Establish relevance of 24X7 Decentralized off-grid solar solutions.
• Spreading the message of Non-Violence towards Environment.
31-10-2020
Solar Ambassador Workshop
3

4. Working Principles:
• In this we have a charge controller circuit which is charged the battery
in a day time by solar panel and give the power to the LED lamp when
ever we need.
31-10-2020 Solar Ambassador Workshop 4

5. Main Components Used:
31-10-2020 Solar Ambassador Workshop 5
• Solar Panel
• 3.2v battery
• Filter Circuit

6. Solar Panel:
31-10-2020 Solar Ambassador Workshop 6
Specification
• Maximum Power (Pmax: 2.5W
• Volt at Maximum Power (Vmp: 4.9V)
• Current at Maximum Power (Imp: 0.51A)
• Open Circuit Voltage (Voc: 6.0V)
• Short Circuity Current (ISC: 0.54A)

7. Lithium Ferrous Phosphate (LiFePO4)- Dry Battery
31-10-2020 Solar Ambassador Workshop 7
Nominal Capacity : 6000 mAh
Internal impedance : 8
Charge Voltage : 3.65
Standard Charge : 1C
Max Charge Current : 6C
Nominal Voltage : 3.2
Specification

8. Filter Circuit
31-10-2020 Solar Ambassador Workshop 8

9. Layout of Control Circuit:
31-10-2020 Solar Ambassador Workshop 9
Charging
Circuit
Battery
(a) (b)

10. 31-10-2020 Solar Ambassador Workshop 10
Steps to Assemble Solar Study Lamps

11. Step 1:
31-10-2020 Solar Ambassador Workshop 11
• Insert the wire strips in the base cover top and glue it.

12. Step 2:
31-10-2020 Solar Ambassador Workshop 12
• Insert the wire strips in the LED cover top.

13. Step 3:
31-10-2020 Solar Ambassador Workshop 13
• Soldering of the load wire with LED strip.

14. Step 4:
31-10-2020 Solar Ambassador Workshop 14
• Placing LED reflector inside the LED cover and placing the LED face
and screwing the face of LED.

15. Step 5:
31-10-2020 Solar Ambassador Workshop 15
• Mount the PCB inside the base bottom and screwing it. Also,
Soldering of the load wire with PCB.

16. Step 6:
31-10-2020 Solar Ambassador Workshop 16
• Place battery in the given slot inside the base bottom cover and
connect with PCB.

17. Step 7:
31-10-2020 Solar Ambassador Workshop 17
• Screwing of base bottom cover with base top cover.

18. 31-10-2020 Solar Ambassador Workshop 18