Sometimes the charges used by gadgets fail. There are people who are interested in trying everything on their own. As a result, homemade charging for the phone appears.
Reasons to create a do-it-yourself charger
How to make charging for the phone? This question does not concern many people, but only as long as they do not encounter problems that can lie in wait for everyone.
So, why might we need to create a phone charger?
It:
- The failure of the telephone battery - until the acquisition of a new one.
- The ability to recharge the phone where there is no network.
- Ability to create a spare charger.
The simplest question is how to make portable charging for the phone from batteries.
We do portable charging
How to make charging for the phone, if there are batteries, a compartment for them, a charger for them or an old mobile phone and a USB extension cable?
Batteries must be of type AA. In addition, a soldering iron and a tester should be available.
We take 4 batteries (preferably large capacity) and insert them into the compartment for them. We measure the voltage with a tester, it should be at least 5 volts. This is due to the fact that modern phones can be charged from a USB connector, in which the voltage is 5 V.
From the USB extension cord, which is not a pity to use, cut off the plug that connects to the computer. We study the pinout of the contacts, we call the tester. We find + and -, remove the remaining wires with wire cutters and isolate.
We put on thermocambric wires and process it with a lighter to ensure a tight entrance. We make a fitting at the place of attachment of the plug.
We will need to solder the wires to the metal rivets. For this purpose, use soldering acid, which can be applied with a tin stick, and then tin rivets.
Solder the wires in accordance with their charge.
The connector must be glued to the body, after degreasing or scraping off the connector and plastic with a knife.
We apply heated adhesive to the body and press. Coat with glue around, closing open contacts. The remaining unnecessary wires are bitten off and covered with glue. If necessary, it can be masked with a marker.
We insert batteries. They must be of the same capacity. Moreover, their total capacity should exceed that of a telephone battery.
Making a charging cable
After making the charging itself, the question "How to charge for the phone?" cannot be removed because the cable still needs to be made.
We cut off the small connector of the USB cable, while the cable length should be half a meter.
Similarly, we cut the wires. + and - already identified, can not be repeated. We bite off the rest of the wires, after which we place them in a thermocambric, clean them, and tin.
Batteries can be charged in different chargers designed for them. In most cases, you can use mobile phone chargers.
You can not complicate your life, but charge the batteries in the appropriate chargers.
Check charging
We insert the charged batteries into the booster, to which we connect the USB cable on one side, and on the other side we connect it to the phone and check the charging.
After some time, the voltage on the booster may drop, so it is better to use batteries with a larger capacity.
Thus, we figured out how to do charging for the phone with our own hands.
Wireless charger
Extension cords may stop charging the phone, they may fray, the charging socket in the phone may become loose. All this necessitates wireless charging. How to make wireless charging for the phone, consider below.
The principle of wireless charging is based on the fact that a coil is built into the charging, which creates a magnetic field, under the cover of the phone there is another coil serving as a receiver. When the receiver is in the range of the conductor, electromagnetic pulses are activated. Through rectifiers and capacitors, the phone battery is exposed.
But before you make your choice in favor of wireless charging, you need to consider that it has a number of negative qualities:
- no reliable data on the effects on the human body;
- energy transmission is inefficient;
- a full charge of the battery is restored in a longer period of time compared to wired charging;
- battery operating capacity can be reduced;
- improperly packaged batteries may overheat, resulting in premature wear.
Let's figure out how to do wireless charging for the phone.
This requires a few meters of thin copper wire. We wrap the conductor into a coil with the number of turns equal to 15. We fix the spiral to preserve the shape with double-sided tape or glue. A few centimeters of wire are left for soldering. The connection to the charging socket is carried out using a capacitor and a pulse diode, which are attached to opposite ends.
The size of one turn on the conductor should be 1.5 cm. After twisting, the diameter of the resulting coil is 10 cm.
To form the transmitter, an even finer copper wire is used in the amount of 30 turns. The circuit is closed by a capacitor and a transistor. We place this device in the area of the transmitting ring with the display up.
Finally
Thus, the question of how to make charging for the phone has several answers. Charging can be portable with batteries, and can be wireless. In any case, it should be done by a person versed in electricity, otherwise you can run into problems.