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A PORTABLE USB BASED SOLAR POWERED MOBILE CHARGING DEVICE CUM HYBRID POWER BANK
A PORTABLE USB BASED SOLAR POWERED MOBILE CHARGING DEVICE CUM HYBRID POWER BANK
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机译：基于便携式USB的太阳能移动充电设备兼混合动力电源
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摘要
Communication is an essential part of our life and with the advent in technology, the use of devices for communication are increasing rapidly and it resulted in enormous growth in mobile technologies. Mobile phone requires electricity for charging its battery. There are many places where till today electricity has not reached but people have mobile phones due to ease of availability. Mobile users living off-grid typically go through exhaustive measures and pay a nominal fee to charge their phone. In todays era, there is a rise in interest toward alternative form of power sources due to adverse effect of typical power generation techniques on environment. Availability of solar energy in abundance is among those alternative power sources. This paper deals with viability of implementing a solar based mobile charger and development of portable small scale mobile phone charging device. Solar energy is non-polluting, reliable and has numerous advantages over nonrenewable energy sources. It has a major pitfall that it is available during daytime. The drawback can be exploited by using battery banks for charge storage and this turns this device to be a hybrid type. The block diagram of complete system is shown in figure no.l. The device consists of AC to DC charging system (A-DCS) where household 220 V AC is provided for conversion to 5 V DC, 5 V solar based charging system (SBCS) and a chargeable battery (CB). This portable charger provides facility of tapping power from ADCS, if power is not available from A-DCS then the device automatically taps power from SBCS. If power is not available from both the charging system, mobile is charged by CB. The entire circuitry is shown in figure no.2. The portable device is suitable for various applications with some minor changes in the output capacity. A universal serial bus (USB) mainly facilitates our users to charge a number of mobile phones.
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机译：通信是我们生活中必不可少的部分，随着技术的发展，用于通信的设备的使用正在迅速增加，并导致了移动技术的巨大增长。手机需要电才能为其电池充电。直到今天，在很多地方还没有通电，但是由于易于使用，人们有了手机。离网生活的移动用户通常会采取详尽的措施并支付象征性的费用为手机充电。在当今时代，由于典型的发电技术对环境的不利影响，人们对替代形式的电源越来越感兴趣。在这些替代电源中，有大量的太阳能可用。本文探讨了实现太阳能移动充电器的可行性以及便携式小型移动电话充电设备的开发。太阳能是无污染，可靠的，并且与不可再生能源相比具有许多优势。它有一个很大的陷阱，白天可以使用。通过使用电池组进行电荷存储可以利用该缺点，这使该设备成为混合类型。完整的系统框图如图1所示。该设备由交流到直流充电系统（A-DCS）组成，其中提供家用220 V AC转换为5 V DC，5 V太阳能充电系统（SBCS）和可充电电池（CB）。这种便携式充电器提供了从ADCS分接电源的功能，如果A-DCS无法提供电源，则设备会自动从SBCS分接电源。如果两个充电系统均无法供电，则CB将为移动电话充电。整个电路如图2所示。便携式设备适用于输出容量略有变化的各种应用。通用串行总线（USB）主要方便我们的用户为许多手机充电。
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