Why do cheap USB adapters give less amps at 5V?

Question

Electronics

What does it depend on? (Chinese 5 V and 1 - 1.5 A, expensive 5 V and 2-2.2 A)

Answer 1

Simplified and cheaper component base. Which conceived is simply not able to give out 2A without burning out
Guess where China is at 1A, and where is the proprietary one at 1.5A

Answer 2

Component quality. Chinese ones are often made very stupidly and not professionally, the components are the cheapest and are chosen terribly - why is it dangerous to load such high power - they will burn out, that's why they make low-power ones, but this does not save them - from which they are not durable. For example, I had a power supply with a 12 V output and the output capacitor was 12 V, i.e. without a margin, and given the range of capacitor voltage ratings and surges in the network - within an hour I heard the pop of an exploding capacitor. Normal engineers put at least a 16 V capacitor.

Answer 3

Yes Easy.
The same transformers consist of copper wire - the greater the current, the more powerful the transformer, the same with the strapping, and these are already more noble metals.
For some, a 300mA block may be enough for some purposes, but for some, even 10A is not enough.
It all depends on the price and need.