Powering Arduino modules from a phone charger?

Question

Arduino

Here we have, for example, a servo drive, it is not desirable to power it from an arduino, because it needs high voltage and the arduino may come to an end.
Is it possible to convert a 5V charger from a phone by taking 2 wires from the charger, + and -, and power, for example, the same servo or a breadboard right away?
That is, take, cut off part of the charge and taking the wires, power the devices.
Are there boards that can convert power from USB charging and power the same modules or breadboards?

Answer 1

1) If this is not a super-intelligent charger, which will automatically turn off if the phone is not connected - no problem. The cheapest Chinese charger is fine.
2) Why exactly from a cell phone? You can use specialized universal power supplies. There are models where the voltage can be switched in the charger. And also the connectors are different in the kit. They are inexpensive and compact.
Or, if your requirements for voltage and current are high, laptop universal chargers. There, too, the voltage changes and the connectors are different in the kit.
3) If this is serious for you, then it makes sense to buy a "laboratory power supply". It is not expensive. But in terms of current and voltage and power stability, they are head and shoulders above phone chargers. And you can regulate not only the voltage, but also the strength of the current. Really bulky.
The simplest of them are very inexpensive.
4) The Arduino has the same voltage as the charger. You didn't mean "not enough voltage". You probably meant "the current is too high".
5) It’s not a fact that cell phones will suit you in terms of current strength. The cheapest ones put out too few amps.

Answer 2

Modern chargers with a USB output are perfect for this - they give out a stabilized 5 volts, but the current can vary from 0.5 to 3 amperes, check the label.