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Don’t stop. 2.009 Fall 2004 Purple Team. Video introduction. Functional Requirements. Consistent power supply while running independent of a battery Competitive quality and price Ergonomic interface No Running Interference Durable. Design evolution. First generation. User feedback.

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Don t stop

Don’t stop.

2.009 Fall 2004

Purple Team


Video introduction

Video introduction


Functional requirements

Functional Requirements

  • Consistent power supply while running independent of a battery

  • Competitive quality and price

  • Ergonomic interface

  • No Running Interference

  • Durable


Design evolution

Design evolution

First generation

User feedback

Final design


User interface

User Interface

  • Modular design (MP3 Player / Power Tube)

  • Sliding connector

  • Ergonomic design

  • Hip Belt docking

  • Unending power while running


Internal components

Internal components


Internal components1

Internal components

MP3 circuit (iRiver)

Neodymium magnet

Clear tube casing

Detachable player casing

MP4ever circuit

30 AWG magnet wire coil


How does it work

+

-

Battery

How does it work!?

~

Reciprocating magnet

Voltage

MP4ever

Circuit

_

Voltage

iRiver

Circuit

Coils

Reflector magnet


Magnet coil details

Number of coils

Size of tube

Gauge of wire

Number of turns per coil

Magnet / Coil details

  • Theoretical Model

    Predict effects of changing variables

  • Optimization Tests

    Final Design

    • Double Coil design

    • 1100 turns each

    • 6 in. tube length

    • 1 in. tube ID

    • 28 AWG wire

Location of coil


Voltage regulation

AC from coil

Wave Rectifier

Driver Chip

Capacitor Bank

Switching Regulator

Output Filter

Voltage regulation

  • Input

    2 Hz AC

    10 V Max. peak-to-peak

    0.45 W Max.

  • Output

    1.4 V

    0.15 W Min.

    Steady Waveform


Voltage regulation1

Coil output

Full Bridge Rectifier

Capacitor Bank

Switching Voltage Regulator

Average = 5.5-10V

Average = 1.4 V

AC from coil

Wave Rectifier

Driver Chip

Capacitor Bank

Switching Regulator

Output Filter

Voltage regulation


Voltage regulation2

AC from coil

Wave Rectifier

Driver Chip

Capacitor Bank

Switching Regulator

Output Filter

Voltage regulation

50-80% Efficient


Mp3 player sales

MP3 player sales

Source: Consumer Electronics Assn., Digital Networks

N. America, Euromonitor Database, China Daily


Develop product alone

Develop product alone

  • Requirements

    Raise capital

    Manufacture, market product

  • Evaluation

    No initial brand recognition

    Crippling initial start-up cost

  • Conclusion

    Might never regain initial capital


License concept

License concept

  • Requirements

    Obtain patent

    Find partner, broker deal

  • Evaluation

    No running / production costs

    Collect royalties ~ 5% of sales (wholesale)

  • Conclusion

    Best option for profitability


Cost and competition

Cost and competition

Competitor prices

Flash memory

iRiver 128MB$ 120

Sony-Philips 128MB$ 140

MPIO 128MB$ 114

Rio Sport 128MB$ 124

HD players

Apple iPod 40GB$ 400

Apple iPod mini 4GB$ 250

CL NOMAD 30GB$ 228

Cost breakdown

MP3 player circuit$ 5

128MB Flash memory$ 20

Circuit, coil$ 10

Magnets$ 7

Battery$ 2

Casing$ 1

Cost to produce$ 45

Wholesale price$ 90

MP4EverRetail price$ 150


Future directions

Future directions

  • Improve efficiency and obtain better power output to:

    1) Reduce size and weight of MP4ever

    2) Improve charging capability

  • Consider expanding into portable radio market

  • Locate interested buyers


Questions

Questions?


Projected roi option1

Projected ROI, Option1

2005

2006

2007

2008


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