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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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Presentation Transcript
slide1

Don’t stop.

2.009 Fall 2004

Purple Team

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 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
projected roi option1
Projected ROI, Option1

2005

2006

2007

2008