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Shenzhen Yilon Communication Tech Co.,Ltd

Power Bank A Set Of Power Supply And Charging Functions In One Of The Portable Charger

Charger Po a set of power supply and charging functions in one of the portable charger, you can give mobile phones and other digital devices anytime, anywhere charging or standby power supply. Generally by the lithium batteries or batteries as a storage unit. Different from the product configuration inside the battery, also known as external battery. It is usually equipped with a variety of power adapter, usually with large capacity, multi-purpose, small size, long life and safe and reliable features, is anytime, anywhere for mobile phones, digital cameras, MP3, MP4, PDA, handheld computers, handheld games A variety of digital products power supply or standby charging function products.

development of 

With the rapid development of the global economy, people's living standards continue to improve, portable electronic products are more and more, such as laptops, tablet PCs, mobile phones, digital cameras, camcorders, portable DVD, PDA, MP3, MP4, Thermal equipment, health care equipment.

They have to use the battery, but the equipment of the original battery will be because the battery capacity is low and can not meet the long-term use of equipment. When the travel or travel is the peak of the work of these devices, often at the critical moment the battery is not electricity, especially in the phone is on the phone, the digital camera is taking pictures, PSP game is playing hard, PDA is working And so on, so you feel helpless and helpless. And you can not have a spare battery for each device, not only costly but also inconvenient. Based on this, in order to solve people's troubles, mobile power came into being.

With mobile power can solve many mobile devices power supply problems, so as to completely solve the power shortage, so that work and travel carefree. Some products on the market capacity, stand-alone capacity of up to 3400mAh to 20000mAh, intelligent power indicator, the general use of polymer lithium ion or 18650 cylindrical batteries, widely used in the input voltage of 5V equipment.

The security of mobile power is also a matter of constant attention, but in the case of market chaos mobile power insecurity is more and more. Mobile power must have: short circuit, overcharge, over discharge, constant current, constant pressure and other protective measures, but also high-performance power management technology.

working principle 

Mobile power is a set of storage, boost, charge management in one of the portable devices. Storage media generally use lithium batteries, because the lithium battery volume is relatively small, large capacity, market circulation, affordable, is widely used in digital products. Lithium voltage between 2.7-4.2V, the voltage decreases with the decline in electricity. And 2.7-4.2V voltage can not be directly to other digital products charge, because the digital product lithium voltage is 2.7-4.2V, with the potential voltage is not between the charge. So the mobile power output power is necessary to have a boost system, the 2.7-4.2V lithium voltage boost to 5V, so you can charge other digital products, such as mobile phones, MP4, Tablet PC, PSP and so on.

Of course, mobile power is not a one-time device, it can be used repeatedly hundreds of times. So when the mobile power is used, we must charge the mobile power. Its principle and charge the same as the phone. Connect to a 5V USB computer interface or USB charger to charge the mobile power. So the mobile power must also have a charge management system. Charge management system can automatically adjust the charging current according to the voltage of lithium battery. The process is: pre-charge, constant voltage charging, and floating charge and so on. The following sections describe the next.

Power batteries: commonly used polymer lithium, 18650 lithium, lithium iron phosphate batteries, AAA nickel-metal hydride batteries.

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