Universal usb charger
It's no secret that the vast majority of computer users use such convenient and compact laptops as such. At the same time, the touchpad never became a full-fledged, and most importantly, convenient mouse replacement. The most convenient option for working on a laptop is to use a wireless mouse that runs on AAA batteries. After several cases of discharging the mouse batteries at the most inopportune moment, when there is no outlet at hand - the idea of creating from the improvised means of a universal charger , which allows you to charge batteries from the laptop.
For more greater versatility, the ability to charge the phone was also added, through the parallel connection of a plug to charge the phone, eventually even while on the road,You can easily charge a mobile phone.
And so, to create this device was used the back of a broken control panel, such as a TV, in general, the main thing In order to have a working AAA battery compartment, we will just have to pick it up and cut it off for later use in the device.
Now we already have a compartment for batteries, then take any old charger and cut off the plug on it, as a rule, there will be two wires - red (+) and black (-), the main thing is not to confuse. Connecting the charger directly to the batteries is strictly prohibited for your own safety, the power supply to the batteries will be connected through a special chip, which is in any phone battery, it serves just to limit the power supply when a full battery charge is reached.
Connect this circuit is not difficult,A bonus for the charging device will be the contact soldered to the case of the battery itself, although in fact each contact is usually signed, the main thing is not to confuse the input with the output.
The next step is to install a mini usb socket into the device, it can be taken from any broken player or phone, it is very easy to connect the first contact - plus, the fifth - minus, it should be connected to the input above orenna microcircuit.
For indication, operation of the charger, it is convenient to use the LED taken, for example, from a lighter with a flashlight, you need to solder it through resistance from 150 to 500 Ohms to the outputs of the microcircuit. irukami.ru/_nw/10/968-8.jpg "alt =" Universal usb charger "title =" Universal usb charger "> Total collected, all this we get a universal charger a device with the ability to charge the phone and batteries, as from a laptop or computer,and from the network.
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