Description of Power Bank Smartphone and Tablet

Question: Describe about the Description of Power Bank for Smartphone and Tablet. Answer: Introduction Power Banks are the portable devices that help in charging the Smartphone and Tablet devices by using the USB ports with the help of inbuilt batteries of the device (Wong, 2013). The power banks consist of Lithium (ion or polymer) batteries cased in a protective structure with PCB (printed circuit boards) for charging the devices. The capacity of the power banks are measured by multiplying the milli Ampere hour and voltage. Overview of the Power Banks Development of Power Bank: The power banks have come a long way of development and the development has been a result of growth of its uses (Hou et al., 2013). The general purpose of the power banks are acting as a subsidiary charge point for the Smartphone and Tablets in absence of electric power point. The power banks have modified from battery phone case to solar charged power bank to universal power banks. Now-a-days the power banks provide multiple ports, compact designs, and automatic detection of input for the devices. Figure 1: Development of Power Banks (Source: Hou et al., 2013, pp-211) Design of Power Bank: The operational diagram and circuit diagrams of the Power banks are, Figure 2: Operational diagram of Power Banks (Source: Moo et al., 2014, pp-1797) Figure 3: Circuit diagram of Power Banks (Source: Yu et al., 2013, pp-452) The architecture of power banks shows a compact size design with smaller Printed Circuit Board for accommodating larger battery in the design (Wong, 2013). It would help in getting more power rating for the device and lower costs for the design. The reliability of the power banks can be improved with the help of smaller system BOM. It has integrated safety features that would help to protect the device from over voltage and over temperature. The input of the devices can be automatically detected by the power banks. Key Specifications of Power Banks: The key specifications of the power banks are, Dedicated Single chip (minimal component count for mobile power supply) Discharge Efficiency and High Charge Constant Programmable O/P current (Moo et al., 2014) Less than 10 micro ampere low battery leakage Need of Power Bank: The use of power bank provides the benefits of portability, subsidiary power, quality, and capacity (Mokrani, Rekioua Rekioua, 2014). The most important need of power banks are for providing the subsidiary power to the mobile and tablet devices. The growth of Smartphone has provided it with a number of functions such as photography, web surfing, using social sites, playing games, and emails. Hence it has given rise to the issue of fast battery draining. The users can charge their phone using the power banks and USB cable (Lin et al., 2013). The portability of the power bank also helps in providing the benefit of using the device and charging the phones and tablets at any place. The power banks use a technology that store the power in its battery cells for charging the devices at required times. The quality of the power banks would also help in charging the devices quickly without harming it (Yu et al., 2013). The good quality of the power banks would help in keeping intact the devic e and charge it in less time. Pros and Cons of Power Bank: The power banks have some pros and cons of their uses just like any other electronic devices. The pros of using the power banks are, Can charge the phone and tablet devices even in shortage of power or load shedding Provides remote charging hub that can be used at any place such as malls, on road, in bus, or caf Easy to use function of the power banks, just connect the device with the power bank using the USB cable and switch on the device (Maleki Pourfayaz, 2015) Charge the device easily and quickly that can be beneficial at times of urgency Devices can be charged even twice or thrice using the same power bank without charging the power bank again Power banks can be charged by using the laptop too as it is charged using USB cable Power Banks have compact designs that are convenient for carrying around. The cons of using the power banks are, Continuous charging using power bank might damage the battery of the device Some people might use the power banks even when their phones are not completely drained, it would affect the power retaining capacity of the device (Ma, Serrano Mohammed, 2014) Good quality power banks are expensive to buy Some power banks lack the feature of automatic input power detection and supply high power for charging the devices (Lin et al., 2013). It would also harm the Smartphone and Tablet devices It is very tricky for using the device with power banks connected to it. Power Bank Charging Formula: The number of times the power bank can charge the device can be calculated by using a formula (Mokrani, Rekioua Rekioua, 2014). Considering 1500 (mAh) device capacity, 80% device depletion, 90% efficiency, and 6000 power bank rating (mAh) the number of times the power bank can be used for charging the device can be calculated as, Number of times (n) = Power Bank Rating (mAh) * Device Depletion * Efficiency / Device Capacity (mAh) N = (6000 * 0.8 * 0.9) / 1500 N = 2.88 Hence the power banks can be used for charging the device of 1500mAh battery capacity for 2 complete times and 88% in the third time. Conclusion Hence it can be concluded that the power banks have modified from battery phone case to solar charged power bank to universal power banks with multiple ports, compact designs, and automatic detection of input. The power bank helps in providing the subsidiary power to the mobile and tablet devices, dealing with the issues of fast battery draining, providing the portability of operations, charging the devices quickly, and keeping intact the device. References Hou, C. H., Yen, C. T., Wu, T. H., Moo, C. S. (2013, April). A battery power bank of serial battery power modules with buck-boost converters. InPower Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on(pp. 211-216). IEEE. Lin, K. H., Yu, L. R., Moo, C. S., Juan, C. Y. (2013, April). Analysis on parallel operation of boost-type battery power modules. InPower Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on(pp. 809-813). IEEE. Ma, T., Serrano, B., Mohammed, O. (2014, March). Fuzzy logic based power and thermal management system design for multi-cell lithium-ion battery bank protection and operation. InPower Systems Conference (PSC), 2014 Clemson University(pp. 1-5). IEEE. Maleki, A., Pourfayaz, F. (2015). Optimal sizing of autonomous hybrid photovoltaic/wind/battery power system with LPSP technology by using evolutionary algorithms.Solar Energy,115, 471-483. Mokrani, Z., Rekioua, D., Rekioua, T. (2014). 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