The fact that the connector is called USB Type-C makes you wonder how it differs from previous versions A and B. The first thing that catches your eye is another appearance... Type-C is more like not a full-fledged USB cable, but the cord with which we charge mobile gadgets.

Left to right: USB Type-C, Lightning, microUSB

Type-C is symmetrical and can be inserted either side. Remember the situations when a flash drive or mouse for some reason is inserted only the third time? This is now in the past. How iPhone owner 5 and Lightning cable, I will say that it is very convenient. For example, it is much easier to grope and insert a wire in the dark.

Bandwidth Type-C - 10 GB per second. Voltage - 20 V. Six months ago, many IT resources wrote that in the future, using this connector, we will be able to charge laptops in the same way as tablets and smartphones. Apple has turned the future into the present. V new MacBook only one connector - USB Type-C, which acts not only as a port for connecting peripherals, but also as a connector for charging a laptop.

At first it seems like it's insanely cool. Then too. But also there are thoughts that we have not yet managed to become so independent from gadgets with wires. Of course, the adapter that Apple quietly released with the release of the MacBook solves this problem. However, this turns the MacBook from a portable device into a laptop with which you have to carry around an additional connector everywhere.

Also important is the fact that the adapter costs $ 79. But third party manufacturers have already begun to produce their own solutions, so the assortment will soon become much wider.

Connector for USB Type-C

The bandwidth of USB Type-C allows you to connect to the connector not only standard USB devices, but even HDMI and display the picture from the monitor on a second screen. With Apple often pioneering such engineering and technological innovations, it is possible that Type-C will soon become the ubiquitous solution.

And we need a bunch of adapters.

Have you ever met a person who enthusiastically said, "My smartphone has Type-C"?

The debate about the modernity and the usefulness of the new interface has been going on for a long time. Some consider it the future, others - a utopia. The trouble is that both sides have strong evidence that they are right. To understand the situation, it is necessary to comprehensively study the issue.

Development

Not everyone remembers the first USB Type-A connector, which is still used in the latest computers, laptops and tablets. In the distant 90s, it had the same physical form, but a different standard - USB 1.1. In more detail, there were restrictions on the data transfer rate.

In 2001, the 2.0 standard was developed, which is the most widespread today. It provided data transfer rates up to 480 Mbps. At this moment, the era of creation of a universal and high-speed connector for connection began.

The first generally accepted connector, which gained great popularity and distribution, was the Type-B Mini. It is successfully used in telephones, cameras, camcorders and allows you to connect devices to a computer. However, this should not be considered a big breakthrough, only the form has changed, the standard has remained the same - USB 2.0. In other words, the transfer rate has not increased.

The desire to minimize the size of gadgets has led to the creation of a new Type-B Micro... He continues to be the main character of the overwhelming number modern technology but cannot offer users great benefits.

The real breakthrough was the USB 3.0 specification, which radically changed the way we look at many things. New interface allowed to increase the data transfer rate up to 5 Gbps. The changes also affected the internal structure. In the new 3.0, a 9-pin group is presented (in 2.0 there were only 4 contacts).

The final step towards the emergence of Type-C was the adoption of the 3.1 standard, which remains the fastest and most efficient today. Users are now able to transfer data at speeds up to 10 Gbps. The new standard also allows a 100W charge to be transmitted.

The standard consists of 24 pins: two rows of 12 each. 8 pins USB interface 3.1 are used to exchange data at high speed. Pins B8 and A8 (SUB1 and 2) are used to transmit analog signals into headphones (right and left), A5 and B5 (CC1 and 2) are required to select the power mode. There are also ground (GND) and power (V +) pins.

Benefits of Type-C

It is not so necessary, but just another physical modification that has received support for USB 3.1. But don't jump to conclusions, as there are a number of advantages that the new connector offers:

• Safety... The connector is reversible, i.e. you can connect the cable in any position. This ensures complete safety and safety of the gadget from breakdowns, which are accompanied by bent or broken contacts.
• Versatility... Fully compatible with all legacy standards starting with USB 1.1.
• Independence... Type-C supporting USB 3.1 can supply up to 100W of power to connected devices. Simply put, when connecting, there is not only a full-fledged power supply, but also recharging the batteries of other gadgets, as from "".
• Compactness... The connector has very small dimensions, therefore it is actively used in the production of modern tablets and tablets.

Flaws

WITH technical point of view USB Type-C is almost perfect. So why hasn't it become the most popular yet? Why are manufacturers in no hurry to equip their equipment with them? There are no obstacles for technical equipment, but there are good reasons that slow down this process.

First of all, it has a unique physical structure, therefore, to connect most gadgets, you need adapter cables, all kinds of splitters and adapters. If the connected device does not support USB 3.1, such a connection simply loses its meaning, since the maximum data transfer speed and power support will not be provided.

Most of the released computer, mobile, audio and video equipment are equipped with Type-A, Type-B Mini / Micro, which do not have support for USB 3.1 or even 3.0. The massive move to USB Type-C will reduce demand for existing products that lack it. Regardless of the wishes and expectations of users, manufacturers deliberately push back effective technology and slow down its spread.

Second, even with two Type-C plug-in devices, it may not be possible to get the full benefit. This is due to the imperfect technology of processing and transmitting information of certain categories of devices. For example, you can sync your smartphone and personal computer / laptop via Type-C. However, data transfer in both directions will be limited, since the hard drive will not be able to provide the maximum speed.

Yes, new technology is available, it is in use, but the transition is still far from complete. You need to understand that in the event of a complete transition to USB Type-C, you will have to send all outdated equipment for recycling.

Good day, Geektimes! Have you heard of USB Type-C before? The one that is double-sided, fast-fashion-youthful, charges new macbook, makes hair silky smooth and promises to be the new connectivity standard for the next ten years?

So, firstly, this is a type of connector, not a new standard. The standard is called USB 3.1. Secondly, we need to talk about the new USB standard, and Type-C is just a nice bonus. To understand what is the difference, what is behind USB 3.1 and what is behind Type C, how to charge an entire laptop from a USB cable and what else can be done with the new USB Type-C:

Briefly about the main thing

USB as a standard appeared almost twenty years ago. The first specifications for USB 1.0 appeared in 1994 and solved three key problems: the unification of the connector through which the equipment expanding the functions of the PC was connected, simplicity for the user, and high speed of data transfer to and from the device.

Despite certain advantages of USB connection over PS / 2, COM and LPT ports, popularity did not come to it right away. The explosive growth of USB experienced in the early 2000s: first, cameras, scanners and printers were connected to it, then flash drives.

In 2001, the first commercial implementations of the USB that we are familiar and understandable appeared: version 2.0. We have been using it for the 14th year already and it has a relatively simple structure.

USB 2.0

Any USB 2.0 and below cable has 4 copper conductors inside. Two of them carry power, the other two carry data. USB cables (according to the standard) are strictly oriented: one of the ends must connect to the host (that is, the system that will manage the connection) and it is called Type-A, the other - to the device, it is called Type-B... Of course, sometimes devices (such as flash drives) don't have a cable at all, the “to the host” connector is located right on the board.

There is a special chip on the host side: USB controller(v desktop computers it can be either part of the system logic, or it can be taken out as an external microcircuit). It is he who initializes the operation of the bus, determines the connection speed, the order and schedule of the movement of data packets, but these are all details. We are most interested in connectors and connectors of the classic USB format.

The most popular connector that everyone has used is the classic-sized USB Type-A: it is located on flash drives, USB modems, at the ends of the wires of mice and keyboards. Full-size USB Type-B is a little less common: usually printers and scanners are connected with this cable. The mini version of USB Type-B is still often used in card readers, digital cameras, and USB hubs. The micro-version of Type-B, through the efforts of European standardizers, has become de facto the most popular connector in the world: all current mobile phones, smartphones and tablets (except for the products of one fruit company) are produced with a USB Type-B Micro connector.

Well, probably no one really saw USB Type-A micro and mini format. Personally, I will not name a single device with such connectors. I even had to get photos from Wikipedia:

Hidden text

All these connectors are united by one simple thing: inside there are four contact pads that provide the connected device with both power and communication:

With USB 2.0, everything is more or less clear. The problem with the standard was that there are not enough two conductors for data transmission, and the specifications developed in the middle of the first decade did not provide for the transfer of large currents through the power circuits. External hard drives suffered the most from these limitations.

USB 3.0

To improve the characteristics of the standard, a new USB 3.0 specification was developed, which contained the following key differences:

• Five additional contacts, four of which provide additional communication lines;
• Increase the maximum throughput from 480 Mbps to 5 Gbps;
• Increase in maximum current from 500 mA to 900 mA.

In addition, there are 4 more connectors that are electrically and mechanically compatible with USB Type-A version 2.0. They allowed both USB 2.0 devices to be connected to 3.0 hosts and 3.0 devices to 2.0 hosts or via a 2.0 cable, but with limited power and data transfer rates.

USB 3.1

Since the fall of 2013, specifications have been adopted for the updated USB 3.1 standard, which brought us the connector Type-C, transferring up to 100W of power and doubling the data transfer rate over USB 3.0. However, it is worth noting that all three innovations are just parts of one new standard, which can be applied all together (and then the device or cable will receive USB 3.1 certification), or separately. For example, technically, inside a Type-C cable, you can organize at least USB 2.0 on four wires and two pairs of contacts. By the way, such a "trick" was done by Nokia: its Nokia N1 tablet has a USB Type-C connector, but inside it is used normal USB 2.0: All power and data rate limitations.

USB 3.1, Type-C and power

A new standard is responsible for the transfer of really serious capacities. USB PD(Power Delivery). According to the specifications, for USB PD certification, the device and cable must be capable of transmitting current with a power of up to 100 watts, and in both directions (both to and from the host). In this case, the transmission of electricity should not interfere with the transmission of data.

So far, there are only two laptops that fully support USB Power Delivery: the new MacBook and the Chromebook Pixel.

Well, then, who knows, maybe we'll put such sockets at home?

USB Type-C and backward compatibility

USB as a standard is strong in its backward compatibility. Find an ancient 16 megabyte flash drive that only supports USB 1.1, plug it into the 3.0 port and go. Connect a modern HDD to a USB 2.0 connector, and if it has enough power, everything will start, just the speed will be limited. And if not enough, there are special adapters: they use the power circuits of another USB port. The speed will not increase, but the HDD will work.

The same story is with USB 3.1 and the Type-C connector, with only one amendment: the new connector is geometrically incompatible with the old ones. However, manufacturers have actively started production of both Type-A wires.<=>Type-C, and all kinds of adapters, adapters and splitters.

USB Type-C and tunneling

The data transfer speed of the USB 3.1 standard allows not only to connect drives and peripherals, to charge a laptop from the network via a Type-C cable, but also to connect, say ... a monitor. One wire. And a USB hub with multiple 2.0 ports inside the monitor. 100 watts of power, speed comparable to DisplayPort and HDMI, a universal connector and just one cable from the laptop to the monitor, the power supply of which will power the display and charge the laptop. Isn't that wonderful?

What's on USB Type-C now?

Since the technology is young, there are very few devices on USB 3.1. There are not many more devices with a USB Type-C cable / connector, but still not enough for Type-C to become as widespread and natural as Micro-B, which any smartphone user has.

On the personal computers Type-C can be expected already in 2016, but some manufacturers have taken and updated the line of existing motherboards. For example, USB Type-C with full support USB 3.1 is available on MSI Z97A Gaming 6 motherboard.

Does not lag behind and ASUS: ASUS X99-A and ASUS Z97-A motherboards support USB 3.1, but unfortunately lack Type-C connectors. In addition, special expansion cards have been announced for those who do not want to upgrade either. motherboard nor give up USB pairs 3.1 ports.


SanDisk recently introduced a 32GB flash drive with two connectors: classic USB Type-A and USB Type-C:


Of course, don't forget about the recent passively cooled MacBook with just one USB Type-C port. Let's talk about its performance and other delights sometime separately, but about the connector - today. Apple ditched both its "magic" MagSafe charging and other connectors on the case, leaving one port for power, peripherals and external displays... Of course, if one connector is not enough for you, you can buy an official HDMI splitter adapter, classic USB and a power connector (all the same Type-C) for ... $ 80. :) It remains to be hoped that Type-C will come to Apple mobile devices (and this will finally end the zoo with wires for smartphones), although the chances of such an update are minimal: was it in vain that Lightning was developed and patented?


One of the peripheral manufacturers - LaCie - has already released a stylish external drive with USB 3.1 Type-C support for the new MacBook.

Rapid development computer technology affects not only the main components of the systems. The possibilities are increasing, including various interfaces. As for the most common way of connecting peripheral devices - USB - here, in general, we can state a multiple increase in performance in recent years. Universal Serial Bus bandwidth increases and functionality expands. The connectors used to connect a variety of USB devices are also subject to changes. Today, many people hear about USB, what are the advantages and disadvantages of the solution - the topic of this article.

Modern computer connectors

Glancing around the chassis of just about any laptop, you will find a range of different ports located on the sides. Among them there is definitely USB, almost always HDMI and some others. Modern models are often equipped with the latest USB Type-C port. What this connector is, many do not know, but it would be worthwhile to familiarize yourself with the capabilities of the port. Presumably, the connector will replace many other solutions in the future and become a truly universal standard. This is facilitated by the technical characteristics of the new way of pairing the computer and peripherals. The USB Type-C port offers users faster data transfer speeds, improved functionality, and a new level of usability. In short, the future of the standard looks very promising.

Many applications of one cable

The creators of USB Type-C used a very simple idea in developing the standard. The user must have a single type of cable, and his computer equipment is equipped with one type of port. Anything can be connected by using a unified interface. For example, using a USB Type-C cable, you can connect at its core different devices represented by hard drives, monitors, audio interfaces, smartphones, tablet PCs. Among other things, it becomes possible to use the connector in question even for charging a laptop.

USB-A

Today, almost all peripheral devices are connected to a PC via the familiar USB-A connector. This port is firmly established in computer world, has a familiar rectangular shape, and its use has become almost a standard for interfacing with PCs and laptops flash drives, external keyboards, mice, hard drives, printers and many other devices. Such a monopoly is likely to be broken soon - the USB Type-C cable is already taking its rightful place among the solutions used to connect a variety of devices.

Change of concept

To connect devices to the long-established standard USB-A port different cables are used. The main difference between them is the connector located on the opposite side of the cable that connects to the computer. This is almost always a different type of connector. For example, micro-USB is used for smartphones, mini-USB is often used for other gadgets. You need a USB-B cable to connect your printer, and a micro-USB-B cable to connect storage devices. This variety causes some inconvenience and complexity, because a user who owns several devices always needs to have a whole set of cables at hand. Designed to be the same for all devices, that is, the universal USB Type-C cable simplifies this situation many times over.

New format

With the development of the standard, it became possible to establish a single connector design for all devices, as well as the same connector at both ends of the cable. How to understand, picking up a USB Type-C cable, what exactly is it? The solution is a slim, oval-shaped connector that is significantly smaller than previous cable and connector formats of this type. In addition, USB 3 Type-C has gained an important characteristic represented by symmetry and reversibility. In general, it is very similar to Apple's Lightning solution - very convenient, because you do not need to spend time manipulating the cable to find the right way to connect.

Future

Probably, today it can be argued that after a certain time, the USB Type-C connector will turn into the only one universal port for all peripherals. Thus, there will be a replacement for USB-A, B, micro-USB and mini, so complicating life ordinary users to date. All cables should be the same and be usable for any device. Of course, quick unification will not happen, too many workable devices with connectors other than USB Type-C are used today and will be in operation for several more years.

It should not be forgotten, however, that the expansion of new solutions has already begun. For example, USB stick Type-C is no longer a rarity on the shelves of computer stores. In addition, the fact that flagship devices are released from the most famous brands equipped with the port in question suggests that the described situation, i.e., the ousting of outdated connectors from the market, will sooner or later come. For compatibility with old solutions, for now, you will have to use a USB Type-C adapter.

Compatibility

After reading the above, you can think about what to do with already purchased devices equipped with connector types other than USB Type-C. Need to say, this question shouldn't be too worrisome. A wide variety of adapters have already been developed, produced and sold, allowing you to connect any device with a USB connector, regardless of its type. Adapters such as mini-USB - Type-C, micro-USB - Type-C and others are already widespread and perfectly perform their functions. The security principle applied in computer technology for many years now, no one is going to break. If there is a USB Type-C port in a new laptop or computer, an adapter for other types of connector is a completely applicable and effective solution.

Learn more about the benefits of the connector

Of course, a simple design revision to which the connector and port have undergone will not be a weighty reason for encouraging the user to upgrade all the peripherals he has, but performance is far from the only advantage of the new solution. The new format supports the most modern USB 3.1 protocol, which provides an increase in the speed of data exchange and greater versatility in comparison with previous versions that are used on devices equipped with USB-A.

Speed

More than two decades have passed since the presentation of the first version of the connector. At the time, the maximum data transfer rate was 12 Mb / s. Today it can be argued, considering USBType-C, that it is the fastest interface for connecting peripheral devices from the existing solutions. The USB 3.1 standard is capable of providing a data transfer rate of 10 Gb / s.

Performance

The additional advantages of the standard under consideration, of course, should include the performance represented by the ability to provide power transmission up to 100 watts. This figure is enough to power almost any laptop, not to mention smartphones, tablets and other gadgets. In addition to energy, the new format supports the transmission of a huge amount of data per unit of time. For example, already today, a video signal in 4K resolution is successfully transmitted via USB Type-C.

Versatility

The versatile nature of the latest standard opens up a wide range of practical applications. Many useful functions can be provided with a single cable. For example, you can connect equipped USB-C laptop to an externally powered monitor and charge the laptop battery while watching video content. When storage devices are connected to the display, such as external drive, from a laptop you can access the information stored on the media.

Disadvantages of USB Type-C

This connector is a brilliant new format, no doubt claiming to be a ubiquitous solution in the very near future. At the same time, the initial stages of distribution and development, at which the standard is still at the moment, do not provide a complete absence of dangers, as well as some confusion when using the connector.

Cheap accessories

The main problem that a user who decides to join modern trends may face is cheap, low-quality accessories and cables. Due to the large amount of power transmitted through the USB Type-C connectors, using inadequate cables can damage the device to be paired. This factor must be taken into account by users without fail. When buying cables and adapters, you should choose products from reliable trusted brands.

Confusion in standards

Another unpleasant moment that users of USB Type-C may face today is caused by the fact that the standard in question relates more to the type of connector used than to the specifications of the interface itself. Therefore, it is quite possible that a device connected to a new connector will not work as fast as the owner of the device expected. The first generation uses USB 3.0 technology, providing a maximum speed of 5 Gb / s. The second generation USB-C supports the 3.1 standard, through which the data transfer speed reaches 10 Gb / s. Problems with each of the ports are due to the fact that they look the same, but in production ready-made solutions brands use different components even in lines of similar models. In other words, before buying a device with a USB Type-C connector, you need to check the compliance with real technical characteristics port to the required indicators.

Advantages of the USB 3.1 port:
★ fast
★ powerful
★ universal

Advantages of the Type-C connector:
★ durable
★ symmetrical

Now it is guaranteed that you can connect USB cable to the device the first time.

⚠ A distinction should be made between the concepts " port" and " connector». Connector(socket) Type-C can be soldered even on an old phone (instead of micro-USB), but port it will remain so old USB 2.0 - this will not add to the speed of charging and data transfer. Of the convenience, only the symmetry and reliability of the connector will appear.

⚠ Thus, the presence of Type-C does not mean anything yet. Smartphone models are on sale with a new connector, but with old port... The advantages listed in this article do not apply to such smartphones.

Pin assignment

The contacts of the connectors in the diagrams are shown from the outer (working) side, unless otherwise specified.

The port contains 24 pins (12 pins on each side). The "upper" ruler is numbered A1 ... A12, the "lower" one - B1 ... B12. For the most part, the lines are identical to each other, which makes this port indifferent to plug orientation. The contacts of each line can be divided into 6 groups: USB 2.0, USB 3.1, Power, Ground, Matching channel and Additional channel ... Now let's take a closer look.

Actually, USB 3.1. High-speed data lines: TX +, TX-, RX +, RX- ( pins 2, 3, 10, 11). Speed ​​up to 10 Gb / s. In the cable, these pairs are crossed, and what is RX for one device is presented as TX to another. And vice versa. By special order, these pairs can be retrained for other tasks, for example, for video transmission.

Good old . Low speed data lines: D + / D- ( pins 6, 7). This rarity was included in the port for the sake of compatibility with old low-speed devices up to 480 Mb / s.

Power plus - Vbus(pins 4, 9). The standard voltage is 5 volts. The current is set depending on the needs of the periphery: 0.5A; 0.9A; 1.5A; 3A. In general, the specification of the port assumes a transmitted power of up to 100W, and in the event of a war, the port is able to power a monitor or charge a laptop with a voltage of 20V!

GND - "Ground" - mother (pins 1, 12). Minus everything and everything.

Matching channel(or configuring) - SS ( pin 5). This is the main feature of USB type-C! Thanks to this channel, the system can determine:

- The fact of connection / disconnection peripheral;
- The orientation of the connected plug. Oddly enough, but the connector is not absolutely symmetrical, and in some cases the device wants to know its orientation;
- The current and voltage that should be provided to the periphery for power supply or charge;
- The need to work in an alternative mode, for example, to transmit an audio-video stream.
- In addition to monitoring functions, this channel supplies power to the active cable if necessary.

Additional channel - SBU (pin 8). The additional channel is usually not used and is provided only for some exotic cases. For example, when transmitting video over a cable, an audio channel goes over the SBU.

USB 3.1 Type-C pinout

The "striped color" here depicts the contacts of a bare wire.

A strange solution was to mark the D + and D- wires not as in USB 2.0, but vice versa: D + white, D- green.

Gray outline marks wires whose color, according to Wikipedia, is not regulated by the standard. The author did not find any indications at all on the colors of the wires in official documentation.

Wiring connectors Type-C ▼

Typical diagram USB-C cable Plug-plug ▼

Power / Charge Technology USB PD Rev.2 (USB Power Delivery)

The USB-C cable does not have such concepts as "Connector-A" or "Connector-B" - the connectors are now the same in all cases.

Device roles are denoted with new terms:

DFP- an active, power supply device (like a USB port A)
UFP- passive, receiving device (like a USB port B)
DRP- "two-faced" device dynamically changing its status.
In addition, the charger is called Power Provider, charged - Power consumer.

The distribution of roles is carried out by setting a certain potential on the CC contact using one or another resistor:

Active device ( DFP V bus.
The resistor value tells the consumer what current he can count on:
56 ± 20% kOhm - 500 or 900 mA
22 ± 5% kOhm - 1.5 A
10 ± 5% kOhm - 3 A

Adapters from USB 2.0 (3.0) to USB-C, used to connect new smartphones to old PCs or memory devices, are soldered according to the DFP scheme, that is, they show themselves to the smartphone as an active device▼

Passive device ( UFP) is determined by the resistor between the pins CC and GND.
Resistor value: 5,1 kOhm

Adapters from USB-C to USB-OTG are soldered exactly according to the UFP scheme, that is, they simulate a consuming device▼

⚠ USB PD Rev2 technology in which by contact CC agree current and voltage charge should not be confused with Quick Charge (QC) technology, where the contacts D− and D + only agrees voltage charge. USB PD Rev2 is only supported in USB 3.1.
QC is supported without reference to the port version.

USB-micro-USB-C adapter

Pinout of the Type-C to USB 3.0 OTG adapter board from different sides ▼

Analog audio via Type-C

The standard provides for the ability to transmit analog sound through a digital port. This feature is implemented in smartphones HTC U series, HTC 10 Evo, Xiaomi Mi, LeTV. The author would be grateful if the reader would add to this list.

Analog headsets with a Type-C plug are used to work in this mode. To connect the classic, adapters are provided.

Analog audio is transmitted on Data−, Data +, SBU1 and SBU2 channels. The smartphone enters this mode if the plug of the headset or adapter resistance between contacts A1-A5 and B1-B5 is less than0.8 ... 1.2 kOhm... Instead of a resistor, I just saw a jumper.

Video over USB-C

For video transmission via USB 3.1, the "DisplayPort Alternate Mode" has been developed.
See the list of devices that support this mode.
In the mode "Display Port" the assignment of the port pins changes - two pairs TX2 / RX2 are converted into a video channel, and the sound is handled by SBU1 / 2 ▼

Discussion: 272 comments

Good afternoon. I'm trying to connect just such a camera to a smartphone with a micro usb socket. OTG adapter micro usb male - usb type I couldn’t find it with female, I’ll try to solder it myself. Do you think it will be enough to connect them via usb 2.0 and short-circuit ID and GND for OTG?

Answer

Thanks for the complete answer!
just give 5 v by disconnecting them from the radio and see the result
I hope the current will be sufficient so that Akum TF does not sit down in the mirror mode.

Answer

Samsung 8 version of android, the latest accelerated charging, supports when working with a car radio, either the wi-fi + bluetooth option or a wire for the video network and control and bluetooth for sound
As I understand it, once the signaling in the network is busy, the only thing that can be done is to supply power to the supply contacts of the connector in the lace 10 kohm is already there. It will, as I understand it, charge with a current of up to 600-800 mA without increasing the voltage, more current cannot be achieved, but increase the voltage without control battery temperature is dangerous
I thought I could use a usb hub if you connect it to the phone, then can it be determined and be able to give information to one and the other device?

Answer

1. If charging with increased voltage is supported, then most likely the smartphone has an old USB 2.0 port (despite the fact that the connector is new - Type-C). This means that the 10k resistor is ignored by the port. Only the USB 3.1 port responds to this resistor.

   without increasing the voltage, more current cannot be achieved

   Even with a fixed voltage of 5 volts, the current can be at least 1, at least 2, at least 3 amperes. It all depends on the power of the charger and the readiness of the gadget to accept this or that current.

   can use a usb hub if you connect it to the phone, can it decide and be able to give information to one and the other device?

   A USB hub will not help with charging. Figuratively speaking, you are going to connect the hub against the grain. In addition, we must remember that the increased voltage from the QC charger will get not only into the smartphone, but also into the radio tape recorder, which is dangerous.

   I recommend looking for information on the topic "QC charge with simultaneous data transfer". Perhaps there are solutions, but I could not find it - a lot of extraneous information comes across in the search engine. Now I cannot investigate the issue in detail - I am overloaded with tasks.

   Answer

Thanks to such a resistor is already in the plug of the cord. The question is how to provide
Boost charging if the digital bus is busy?
Can't you parallel it? (In the sense of the USB bus) with other devices? Is it possible to parallelize the digital signal for controlling the current and voltage of the charge from the accelerated charging of the tf with the USB bus through which the data goes to the radio tape recorder, specifically control and video (digital miracast)

Answer

1. I am afraid that it will not be possible to provide an accelerated charge. You cannot branch the data bus - data transfer will not work.

   The question is, which version of the port does your smartphone have - USB 2.0 or USB 3.1? And does the smartphone support technology fast charging QC. If so, which version of QC is supported?
   Frankly, I did not understand how you are going to charge your smartphone with an external source and work with a radio tape recorder at the same time?

   Answer