Manufacturers of smartphones compete with each other, equipping each new model with a unique "chip". So users have become available phones with wireless charging. Convenient, fast, it promises maximum comfort when working with a gadget. But, as a rule, it is not supplied with a smartphone. The cost of the cheapest model starts from 700 rubles, more or less normal will cost 2.5 thousand rubles. And of course, the user has a logical question: how to make a wireless charging with your own hands? It turns out that, if desired, and the presence of some of the details, it is quite simple to do this, but first it is necessary to become familiar with all the accompanying nuances.

Learn how to properly do your own hands-free wireless charging.

Principle of operation

Wireless charger allows you to charge the phone battery without connecting the latter to the wires. The mobile phone is placed on a special stand, where the whole process takes place.

The principle of operation is to transmit the magnetic field from the transmitter to the receiver. The second in this case begins to generate a voltage, which charges the battery.

The presence of a built-in receiver can be viewed in the characteristics, if the manufacturer indicated support for the Qi standard, then everything is in order.

The principle of operation of this wireless charging scheme is quite simple.

ATTENTION. The lack of a gadget built-in receiver is not a reason for rejecting the idea. In this case, the owner of the smartphone just needs to put in a little more effort and make the receiver himself.

How to make a wireless charging yourself?

There are several options for performing work, the essence of which ultimately boils down to one. If you arrange all the elements on a clean board, attach them with a soldering iron and equip the structure with a choke, you can get a high-quality device. It will be able to produce voltages of up to two amps, working reliably and smoothly. However, if there is a minimum of materials at hand, it is worth using a simpler scheme. To choose the most suitable option, it is worth considering both.

Transmitter: Option 1

Before you make a reliable and high-quality wireless charger with your own hands, you need to prepare:

• charge;
• choke with a wire diameter of 1 mm, wrapped in 5-10 turns;
• nominal resistors up to 1 W - 2 pcs .;
• transistors with voltage of 10 volts and more - 2 pcs .;
• UF diodes - 2 pcs .;
• film capacitor with a capacity of 0.35 to 1 microfarad;
• multimeter;
• soldering iron and soldering accessories.

First of all, a contour is made of a long wire. To do this, the wire folds in half, using 5 to 10 centimeters in diameter with fingers or a loop, 5 turns are worn. Around the entire circumference, the contour is firmly fastened with tape or glue.

First carefully wind the 20 turns and then twist the wire

Further, it is necessary to cut the loop, resulting in folding the wire in half, it turns out 4 free end. They are stripped, the beginning of the first winding is connected to the end of the second, the end of the first winding to the beginning of the second. To determine which of the ends with which to connect, will help a multimeter. The “active” ends are soldered together, forming a midpoint. That she goes to the plus power through the choke. Resistors will be connected to the free ends in the future.

Wireless charging is done for the phone with their own hands in the following sequence: two transistors are soldered, then diodes are connected to them, resistors to the diodes, in turn. The ends of the latter are distributed between the board and the diodes. The contour is soldered last, previously the tinning of both windings is performed.

A transmitter assembled in such a way for a smartphone with its own hands creates a high-frequency field on the primary circuit, which in the secondary is smoothed by a capacitor and stabilized to approximately 5 volts.

Transmitter: Option 2

The second option will tell you how to make a wireless charging for the phone in an easier way from a minimum of materials. It will take:

• copper wire with a diameter of 0.5 mm;
• two transistors.

The wire is wound in forty turns on the rim. It must be prepared in advance, based on an optimal diameter of 7-10 centimeters. After the twentieth orbit, a slice is made. To it and the end of the coil is connected by a resistor, on this device is considered ready.

The value of the base resistor is not critical (22 ohm-830 ohm)

TIP. It is necessary to take into account the conductivity of the resistor, if it is straight, the polarity must necessarily change during assembly.

The transmitter should be placed in the case, the box from under the disks will perfectly fit its role.

Receiver

If the smartphone is not equipped with a built-in receiver, then it will take time to make it. Your receiver can be installed not only on the smartphone, but also on the usual push-button, as it connects to the battery.

Wireless charging for a smartphone with their own hands in this case will require a wire with a diameter of 0.3-0.4 mm. And also useful double-sided tape and superglue. For convenience, the work on the contour can be done on a plastic surface.

Separate the contour from the plastic stand on which it was wound.

The receiver consists of 25 turns, tightly pressed to each other. To further the construction did not break, it is recommended to fix the coils on double-sided tape and, as the area increases, fill them with superglue.

In addition to the wire, the receiver includes a silicon diode, the marking of which does not make much difference. The coils of the second part of the wireless charging are gently separated from the surface and connected to the device through a diode.

Connect the circuit to the battery

In addition to how to make a wireless charging, you should think about how to connect it. The receiver can be connected either to the battery or to the charger connector. The second option, as practice shows, is more preferable.

It remains only to fix the receiver made on the lid of the smartphone and you can start testing.

IMPORTANT. To check the performance of the wireless memory, it is worth taking an old phone, the loss of which due to errors in the assembly will not cause damage to the owner. And also it is not recommended to charge in this way the phone, which is under the manufacturer’s warranty.

What is worth knowing about homemade charging?

Before you learn how to do the most wireless charging, you should learn the following:

1. Self-made device without proper quality and compliance of structural elements will not have great power. Therefore, the charge time may increase to 7 hours.
2. The charge occurs at a distance of 4 centimeters, the gadget in the process must lie directly on the transmitter.
3. With the proper approach to creating a wireless charging, you can get a truly excellent accessory that will help out in case of breakdown of a standard charger or input!