VLASTIS: tim PD myslis PD1 nebo co myslis tim PD?

3. USB Power Delivery Versions
USB PD technology has come a long way since its inception. Let’s look at some of its different versions.

1. USB PD 1.0
USB Power Delivery 1.0 came out in 2012 and allowed power delivery up to 100W over one USB cable. USB PD 1.0 included specifications for compliant cables and connectors. It came in traditional USB connector shapes with minor differences to the internal wiring.

PD-compliant cables were compatible with most USB ports while standard USB cables needed to be connected to appropriate ports.

2. USB PD 2.0
Released in 2014, USB PD 2.0 introduced related power rules from USB PD 2.0 rev 1.2 and required the use of USB Type C connectors. The power rules need multiple normative voltages and current, enabling smoother power delivery and usage among devices.

3. USB PD 3.0
USB PD 3.0 was released in 2015. It allows the advanced use of Type C power capabilities and functionalities. One of the most noteworthy features of USB PD 3.0 is role swapping.

Consider this example to understand role swapping. A laptop that charges an external battery via USB is likely to get completely drained. Earlier, the only way to get the power back from the external battery was to remove and reconnect the cable. This worked only if the internal battery was connected through Type A (supplying power) and Type B (receiving power) ports.

Charge Desktop Charger

USB Type C charger eliminates this problem through role swapping. As long as the power conditions are met, the computer and the external battery can quickly swap roles. The laptop can become the power consumer instead of the provider. The battery would charge the other way. This would happen without the need for reversing the cable or using multiple ports.

Role swapping works not only with charging, but also with data communication. Further, data communication can take place without interruption as the power role changes. Simply put, data can continue to flow in a single direction even as the power direction changes.

Related article: PD 3.1: The Next Generation of Chargers

What is PD 3.1? A Complete Guide to Power Delivery 3.1
https://blog.ugreen.com/power-delivery-3-1/

DARUMA: Volte neresim, na pixel5 se dal nakonec rozbehat taky, ale u toho 5G je princip ten, ze operatori s 5G senzaci proste lzou a lidi na to nabihaj jak vosy na med (hlavne starsi lide, kteri se bali, ze kdyz jim na vesnicich ted povypinali 3G, tak si uz nezavolaj) a a to mi fakt nelibi. Princip je IMHO ten, ze vyrobci a servis provideri lzou, ne to, ze ma nejakej mobil coutry restrictions nektere softwarove vybavy.

chápu dobřem že PD a PD 3.0 jednou jsou?

DRAGON: Jde o princip ne? Když si kupuješ telefon co by měl umět 5g a Volte ale tobě to nefunguje tak to prostě není košér.

tomuhle vubec nerozumim, proc by tohle melo byt no go. Kdyz jste na poradnym LTE (a kdyz ne, tak stopro nemate ani poradny 5G, tech vysilacu je jako safranu a pulka z nich stejne jede na LTE frekvencich a je to fake5G, minimalne u dvou operatoru ze tri, vic k tomu verejne psat nebudu) tak je to rychly jako prase (cca 100MB/s) a u drtive vetsiny webu je omezeni spis na strane vytizeni serveru nez rychlost pripojeni mobilu. Cely 5G je naprosto vyhypovana blbost. Vim to moc dobre, na tom projektu vystavby sem se podilel.

Nebo takhle: moc rad si poslechnu aspon dva argumenty, proc telefon musi mit v dnesni dobe 5G...

No taky jsem mu to chtel poslat, ale HP notebooky na to "serou" a i tady zminilo nekolik lidi problem s PD.