在动力故障期间， DIY文丐-如何做您自己的UPS为您的计算机和其他外围设备!
最近，我的家有力量储运损耗象6个小时。 我可能去购买UPS (不同断电源)，或者 我可以使用汽车电池做我自己的UPS.
很好，我是正义的希望此 DIY UPS 为时6个小时，因此我可能继续使用我备用的膝上计算机，不应该需要力量无论如何逃跑UPS。 但，如果我设法跑我的桌面个人计算机，它只大概将持续2-3个小时至多，可能甚而。
This DIY is for 220 Volts so you will have to make some calculations to make sure you are providing the correct number of invertors and etc…etc… Btw, if you do use it for powering up your laptop, you don’t need an invertor as most laptops are around 12VDC anyways, which is what car batteries are at. (But you will need to hack an adaptor to the laptop for sure)
In this article we look at how you can cobble together a 220 Volt power supply using components you can buy at your local automotive store. But first it is important to understand a few basics about batteries, and how to convert 12 Volt DC battery supplied electricity into 220 Volt AC current that your household appliances can use.
A twelve Volt battery is a storage device that, when charged, stores electricity in chemical structures that can reverse and release electricity if required. Batteries are typically rated in Amp Hours (AH) - ie how many Amps for how many hours the battery will perform. An inverter is a device which can take the DC current from a battery and convert it into 220V AC current for your appliances.
To calculate how many batteries you need, and how big an inverter is quite simple. Investigate the specification plates on the back of each appliance. In the case of my laptop, the power supply is a 90W unit.
For an inverter one can work on a rule of thumb that to produce 100W will require approximately 10 Amps, hence in reality the lap top requires about 10 AH of battery life per hour. With a 90 AH battery one can therefore expect about 9 hours of power before the battery provides too little current to keep the inverter going. But it is not this simple.
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