Charging without myths: first from a socket or from a phone

Myth of a decade: “First pull out the cable/first a socket, otherwise the phone will burn”, It is still the subject of hot controversy among users of smartphones, especially in a malfunction. What can actually lead to their failure?

The story of the “correct” shutdown procedure has been drawn from the time of simple transformer charges. Then the scheme could react with sharp impulses, and the protection was primitive. Today, branded food adapters are high -tech devices with the control of processes at the input and output.

Myth No. 1: When pulling out of the outlet, there will be a leap that will kill the port

Modern PSU does not “sprinkle” random impulses to the exit. A special controller monitors the modes and correctly extinguishes the transformation when removing the input voltage. The output line for the phone either instantly de -energized, or smoothly fades over milliseconds. For a smartphone, this is a normal situation provided for by circuitry and standards.

Myth No. 2: Iskra in the outlet (microduga) will break through the electronics of the phone

Iskra when taking out a fork – a phenomenon on the side of the network 220–240 V. Between the network and the output is located Galvanic denouement – Transformer and isolation. The parties are physically separated: the interference at the entrance is not broadcast as a “slaughter” impulse for a low -voltage output of 5/9/12 V. For the phone, these are different worlds with a reliable barrier.

Does the sequence have a value: first a socket or a phone?

This is how the branded charging about Xiaomi looks. Clear marking, real characteristics and certification signs. With such a block, you can not think about turning off the sequence.

For good brand charging – no. The shutdown procedure does not affect the safety of the port. The only practical plus “first from the outlet” – you are guaranteed to remove the dormant consumption of the adapter in idle (tenths of watts). The economic effect is symbolic.

Where is the real danger

The danger appears when using Fake and No-Name blockswhere they save on isolation, filters and controllers. Such an adapter is able to “spit out” to the output and anywhere. In this case, the procedure will not save: the fact of connecting is dangerous.

Practical conclusions

• Use the adapter from the manufacturer of the device or a proven brand – turn off as convenient.
• No-Name for “1 euro” acquired in the stall of a conditional “Pakistani”-a risk for a smartphone is more expensive than any “right” power supply.
• Keep the cables intact, do not bend the connectors, monitor the temperature of the adapter under load. If the cable begins to break at the place of bend, try to fix it (there are a lot of life hacks on the Internet how to fix it)

Case from practice: when it is not to be guilty

A smartphone that has turned into a “brick” does not always die due to the “wrong” shutdown. Often this is a defect in a particular model: the degradation of capacitors, the problems of the power cascade, the power controller. Repair gives a temporary effect, and the final breakdown occurs later – regardless of the procedure for taking out the plug or cable.

Result

More important not how to turn off, but what to charge. Modern branded charging with galvanic denouement and standard protection makes disputes about the order of disconnecting meaningless. Focus On the quality of the adapter and the serviceability of the deviceand not on myths of ten years ago.

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