June 15, 2019
June 15, 2019
June 19, 2019
Entrepreneurship & Engineering Innovation
The Kern Entrepreneurial Engineering Network (KEEN) structure has been used to plan, design and develop a project using a system engineering approach to implement wireless power transfer. As a new technology, wireless power transfer allows transmission of electric power without connecting to physical connectors. The electricity can be delivered through an air gap from transmitter to receiver. Wireless power charging technology has become popular in recent years while being widely adopted into many devices such as portable electronics and electric vehicles. Wireless power charging technology has huge potential, bringing advantages not only to industries but also to consumers.
Inductive coupling and resonant inductive coupling are the two mostly used wireless charging technologies on market today. In this project, inductive coupling technology will be used to design, build, and implement a wireless power charging system for wireless earphone headsets. This project mainly focuses on designing a wireless charging system for wireless earphone headsets. The wireless charging system is designed such that it is easy and convenient to use.
The project also focuses on how to reduce the overall manufacturing price for the product. After performing the market research, most of the wireless charging earphone on market today costs more than $80. Affordable components are selected in this project and the total cost of $20 is achieved to design and build this product. In addition, very few wireless charging earphone headsets are sold on market today. In comparison, the commercial product is four times more expensive than the product designed and built in this project. However, additional cost needs to be added to include marketing and distribution.
The final product is composed of a transmitter station and a receiver station. The transmitter station functions as a charging station sending electric power to the receiver station through an air gap. The receiver station is the earphone headset having a combination of a wireless receiver module and receiver coil. Based on the KEEN framework, this project is targeted to maintain current market trends, designing an affordable and an easy to use wireless charger for Bluetooth headsets.
The product is composed of four sub-systems: AC adapter (AC-to-DC converter), wireless power transmitter module, wireless power receiver module, and earphone headset with battery sealed inside. Based on the Vee-Model for modeling the system engineering process, requirements were generated for each sub-system and then carefully tested in the laboratory before final assembling. In this 11-week course, a deliverable is required for each week and when necessary to meet with the instructor as required to keep the project on track and within scope. To develop additional skills, an online 3D design software is used to design the 3D layout of charging station and was successfully printed out. The transmitter module is placed inside the charging station while the top and bottom parts of charging station is fixed together with glue. After the design and hardware implementation, the final product was successfully built and tested without any major issues.
Santiago, J. M., & Guo, J. (2019, June), Using the KEEN Framework and the System Engineering Approach for Design and Development of Affordable Wireless Power Transfer using Inductive Coupling for Application in Earphone Charging Paper presented at 2019 ASEE Annual Conference & Exposition , Tampa, Florida. 10.18260/1-2--33520
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