This document proposes developing a thermoelectric device charger that harnesses wasted heat to generate electricity. It will use thermoelectric generators to directly convert heat to electricity, then a DC-DC booster and voltage regulator to condition the output to 5V/100mA to charge devices via USB. The objectives are to create a portable charger for situations without power. It will utilize common electronic components like an IC, inductor, capacitor, and PCB board. The proposal provides a block diagram, flowchart, budget, timeline, and discusses benefits of the design.

1. DEVELOPMENT OF THERMOELECTRIC
DEVICES CHARGES
MOHAMAD SHAFIQ BIN HAIRUDIN
51210111372
NOR AZMAN BIN OTHMAN (MANO)

2. ABSTRACT
 Generating an electricity by using any kind of wasted heat as a
supply.
 The concept that applied in this project is Seebeck effect that
directly converts heat energy to electricity to charge a device.
 This proposal describes a device charger, which is powered by
thermoelectric generator (TEG) power modules.
 In processing the output, the application of dc-dc booster and
voltage regulator is applied. The output product is a 5V,100mA
at the USB socket.

3. OBJECTIVE
 To develop a thermoelectric generator device charger (5V, 100mA)
 To develop for consumer bring to anywhere where they can get heat
source
 To enhance renewable energy technologies and to save the environment
PROBLEM STATEMENT
 How do we develop energy supply when lose power on a smartphone
during hiking & camping?
 What method can be charging a smartphone at anytime?

4. PREVIOUS WORK
1. NASA spacecraft project:
• Use for many years by NASA to power spacecraft and the oil and gas industry to
power remote monitoring stations around the globe.
2. Consumer applications:
• Seiko Thermic, a wristwatch powered by body heat using a thermoelectric
generator
3. Previous FYP BMI student:
• Development of Portable Power Supply using Hot Water which is large scale
output (240v 13A 300W) at the socket plug.
• This project is need to charge the 12V battery and convert to AC source by the
inverter

5. METHODOLOGY
 Using a principle known as the Seebeck effect.
 Create electrical source by movement of electron in
semiconductor when the heat applied.
 Step up DC-DC converter to give greater output than the
input
 Voltage regulator to increase efficiency and give constant
output

6. BLOCK DIAGRAM
CONVERSION HEAT-
ELECTRIC
DC-DC BOOSTER
VOLTAGE REGULATOR
USB PORT
WASTED HEAT & HEAT
SINK
LOAD

7. F
L
O
W
C
H
A
R
T
START
APPLIED HEAT SOURCE AT HOT SIDE
THERMOELECTRIC
THERMOELECTRIC CAPTURE THE HEAT &
COVERT DIRECTLY INTO ELECTRICITY
DC-DC BOOSTER WILL STEP UP THE VOLTAGE
INTO 5V
VOLTAGE REGULATOR STABLIZE OUTPUT AT
USB PORT (5V)
USB PORT GIVES ELECTRICITY TO ELECTRICAL
LOAD
END
TEMPERATURE
COLD SIDE = HOT
SIDE
APPLIED HEAT SINK WITH FAN AT
COLD SIDE THERMOELECTRIC
YES
NO

8. MATERIAL & COMPONENT
Thermoelectric Generator Module (TEG)
Heat Sink
DC-DC Booster circuit

9. Voltage Regulator
USB Female socket
DC Brushless Fan Motor

10. BUDGET
NO ITEM PRICE
1 Heating dissipation part:
• Heat sink (cold side)
• DC brushless fan motor(cold side)
• Aluminum plate (hot side)
• Thermal compound
RM 20
RM12
RM 10
RM15
2 Converting heat to electricity:
• Thermoelectric generator (TEG) RM600
3 DC-DC Step Up Booster:
• MAX756 IC
• Inductor
• Capacitor
• Diode (1N5817)
• PCB board
RM6
RM2
RM2
RM3
RM15
4 Voltage regulator:
• LM 3405 IC
• Inductor
• Capacitor
• Diode
• Resistor
RM6
RM2
RM2
RM2
RM1
5 Load connection:
• USB female socket RM3
TOTAL RM701

11. GANTT CHART
NO TASK DESCRIPTION SEP OCT NOV DIS JAN FEB MAR APR MAY JUN JUL
1 Project Briefing
2 Project Title
3 Find advisor and project title
4 Discussion with Advisor
5 Idea Brainstorming
6 Information Research
7 Proposal Submission
8 Component Listing
9 Purchase components and parts
10 Components and circuit testing
11 Analyzing and error finding
12 Hardware developments
13 Wiring and testing component
14 Troubleshooting and finishing
15 Viva and demo
16 Report writing and submission

12. BENEFIT OF CONTRIBUTION
 Light weight and portable
 Environmental friendly
 No moving to convert heat to electricity

13. CONCLUSION
 Referring to the proposed research and expectation result,
this project will able provide an alternative approach of
charging devices.
 Thermoelectric generators are an intriguing way to
generate renewable energy directly from waste heat and it
help reduce natural source consumption.
 If everything went as expected, the objectives will be
achieved.

14. PROJECT CONCEPT

15. REFERENCE
 http://en.wikipedia.org/wiki/Thermoelectric_effect#Seebeck_effect
 http://www.techulator.com/resources/10562-Make-your-own-Solar-mobile-charger.aspx
 http://www.instructables.com/id/Battery-Charger-Powered-by-Fire/
 http://www.ti.com/product/lm3405
 http://fyp.bmi.unikl.edu.my/submission/S113/Degree/51210111106/indexx.php?studName=MUHAMMAD%20AIDIL%20SA
LHA%20BIN%20MD%20ADZHARI%20&studId=51210111106
 http://www.reuk.co.uk/DC-Voltage-Multiplier-Circuit-Plans.htm
 http://www.ef-uk.net/data/fixed-regulators.htm
 http://tecteg.com/store-thermoelectric-power-module-selection-purchase/
 http://www.seikowatches.com/heritage/worlds_first.html
 http://espressomilkcooler.com/product/teg2-07025ht-ss-ceramics-only/
 http://nathan.chantrell.net/20120430/the-magic-of-the-boost-converter/
 http://en.wikipedia.org/wiki/Heat_sink