How to make wireless charging from wired (simple)

Michael asks:

I have an electrical circuit (pictured). This is a phone battery charger circuit, but unusual. Ever encountered a car battery charger? This type of box with an ammeter and crocodiles. Here I have something similar, but for the phone.

Its peculiarity is that it charges the battery with a pulsed current, and not constant, like conventional charging. So, there is a schematic diagram for it, I can send it, there are several microcircuits, a digital timer, a generator, power supply, resistors, one field-effect transistor, etc.

I need to make wireless charging out of this phone charger by adding something to the circuit. Those. so that it charges with a pulsed current, but at the same time, like now modern charging without a wire.

And I need this in view of the fact that it is terribly inconvenient to remove the battery from the phone and clamp it with crocodiles. Now either wired chargers are relevant, but it is better still wireless, I took the phone down and it is charging with you, and with a pulse current, and, as I heard, it is useful for the battery, because it restores its capacity and does not allow it to oxidize, or somehow there is kind. Is a solution possible in this situation?

The question is answered: Alexey BartoshAlexey Bartosh
The solution may and is possible, but just "adding something" here does not get rid of. First, you need to understand that wireless charging consists of two inductors (two coils). In simple terms, when you put the phone on the base (let's call that pad for wireless charging, I hope you understand me), the coils interact with each other, like the windings of a simple transformer. An alternating current with a high frequency flows in the base (it is the transmitter), as a result of the presence of the receiver coil (the one on the phone) in its magnetic field, the same current arises in the latter. Charging in progress. From this it follows that the principle of operation described above is not the same as that of the diagram you gave.
You have complicated the task, and much more, it is cheaper, faster and easier for you to buy for a couple of hundred - half a thousand wireless charging from aliexpress.

Secondly, it is certainly possible to implement impulse charging of a telephone battery, but why? This charging method was more often used to charge lead, metal hydride and other types of batteries that were previously used in technology. To charge lithium, special algorithms are used, one of them is implemented on a tp4056 regulator microcircuit (this is one of the most common, simple and cheap options), by the way, with the help of this microcircuit, you can restore charging through the native connector, look on YouTube for the video "REPLACING THE TABLET CHARGING SYSTEM (when there is no place for the board) ".

Thirdly, why bother so much? What kind of phone do you have that you need to remove the battery? Why does the standard charging through the connector not work? To simplify life, in this case, either universal wireless charging is used (inserted with a plug into the micro-usb connector), or cords with a magnetic plug.

I apologize if you did not like my answer, but with a similar question, you would be better off at any specialized forum, in the section where power converters and power supplies are discussed.

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