Business Memo on Wireless Mobile Phone Charging
Abstract
This memo analyzes how to achieve a wireless charging system for mobile phones. The goal on wireless charging system is to achieve more convenience in the use of mobile phones. Previous literature concurs that it is possible to achieve a wireless mobile phone charging system. The system works with the electrical principle of mutual inductance to transfer current from the source to the mobile device.
As the use of mobile phones is becoming more popular, people are beginning to worry about the convenience of using such deviances. From the technological front, the use of mobile phones has been advanced to the extent where some of them mimic computers (Suh, Lee, & Vu, 2014). Increased functionality of the mobile phones automatically translates to increased power usage. Therefore, the current mobile phones need more energy to support their increased functionality for a reasonable period. On the other hand, the research of the long-life batteries seems to have reached its limits (Maeght et al, 2013). Therefore, the alternative frontier of supporting the functionality of the mobile phones is to make them charge without the use of wires.
Objective
The mobile phone was designed to make use of the telephone more convenient to users. However, the convenience of mobile phones is still limited as long as people are using wires to charge their phones. The objective of the wireless phone charging project is to provide a means by which phones can be charged without the need for wires. This will make the phone charging system more convenient for millions of phone users.
Background/Literature Review Survey
The benefit of the wireless battery charger is that it eliminates the usage of a separate charger and provides increased convenience in phone usage (Potter, McInyre, & Middleton, 2008). The other benefit of the wireless phone charging system is that it is easy to operate and is environmentally friendly. On the other hand, the use of a wireless charging system is limited in that power is somewhat wasted from the complicated process of mutual induction (Kanter, 2003). Also, the system can only work for short distances and can seldom be used while traveling long distance. If long distance charging is necessary, the number of inductors needs to be high to ensure efficient current transfer.
The conductor has the property of inductance that helps to induce a voltage in a nearby inductor (Apneseth et al, 2003). The wireless battery charger can utilize the inductive method to transfer currents from one gadget to another. In mutual inductance, the current carrying conductor is placed next to another conductor so that current transfer can take place between them. The current carrying conductor introduces a magnetic flux that links with the magnetic flux of another conductor to initiate the transfer of electric current between the two conductors.
Marketing (or User) Requirement
Description of the Proposed Approach
The proposed approach utilizes resistors, capacitors, copper coils, transformer, voltage regulator, and diodes. The circuits are necessary to make the circuit complete. The first circuit is meant to produce voltage in a non-wire system and is known as the transmitter circuit. Since the transmitter circuit produces voltage, it consists of the oscillator circuit, the DC source, together with the transmitter coil. The current starts to flow in the coil the moment the DC power is given to the oscillator and this makes some voltage to appear at the other end of the circuit. The work of the transformer is to step down the high voltage AC to the main supply of 12V AC. The bridge rectifier then converts the 12V AC to 12V DC (Electronics Hub, 2013). After that, the capacitor filters the ripple to ensure that only pure DC than can be used for mobile phone charging is supplied. On the other hand, the other circuit comprises the receiver receives the current and regulates the current accordingly into the mobile device. The power is induced into the receiver coil the moment it is placed at a distance near the AC power. The rectifier circuit and the regulator circuit ensure that the current transfer operates within the required limits.
References
Apneseth, C., Dzung, D., Kjesbu, S., Scheible, G., Zimmermann, W. (2003). Wireless - introducing wireless proximity switches. Sens Rev 23(2), pp. 116-122.
Buckley, J., O'Flynn, B., Barton, J., & O'Mathuna S.C. (2009). A highly miniaturized wireless inertial sensor using a novel 3D flexible circuit. Microelectronics International 26(3), pp. 9-21.
Electronics Hub. (2013). Wireless Mobile Battery Charger Circuit. (Online). Retrieved from http://www.electronicshub.org/wireless-mobile-battery-charger-circuit/
Kanter, T.G. (2003). Going wireless, enabling an adaptive and extensible environment. Mobile Networks and Applications 8(1), pp. 37.
Maeght, F., & Rasolomampionona, D., Cresson, P., & Favier, P. (2013). Wireless supervision on a photovoltaic recharging station. Compel 32 (1), pp. 192-205.
Potter, A.B., & McIntyre, N., & Middleton, C. (2008). How usable are outdoor wireless networks? Canadian Journal of Communication 33(3), pp. 511-524.
Suh, I.S., Lee, M.Y., & Vu, D.D. (2014). Prototype design and evaluation of an FSAE-based pure electric vehicle with wireless charging technology. International Journal of Automotive Technology 15(7), pp. 1165-1174.
