Which dual-port chargers dual-port charging constantly
2022-09-01 Views：33
With more and more electronic devices in the hands of users, the number of chargers is also increasing, cell phones, tablets, laptops, watches, Switch, etc. If each device is equipped with a charger when you go out, the backpack is estimated to have been filled with chargers, so multi-port chargers have emerged.
Dual-port charger in only access to a device, again access to another device, at this time the first device will again prompt charging, display charging UI; from the internal circuit design of the program is different, so the performance of the way is charging reconnect, the next, charging head network will explain the basic idea of dual-port charging and some dual-port non-stop products in general.
Although users now have more and more electronic devices in their hands, but it is undeniable that the laptop plus cell phone is still the majority of users in the hands of the golden two sets. So dual-port chargers are naturally more appropriate.
But the development of technology will also bring some side effects, the charger is no exception.
What is a power failure?
Power failure is actually a "side effect" of the dual-port charger.
As a simple example, this is Samsung's 65W three-port charger, you can charge three devices at the same time. If you are charging two devices, you will have a variety of combinations.
Now connect one of the USB-C ports to the phone for charging, at which point a second cable is inserted to charge the other phone. At the moment of inserting the second cable, you can see the output power of the USB-C1 port disconnected for a bit. Although the 2 USB-C interface common output to charge the phone.
The moment the first interface disconnected as described above is called a power failure. The impact of this phenomenon on the daily charging is said to be large, not small. But there are many users feedback really uncomfortable to use. In other words, whether the user wants to buy a charger will not be because of whether the power will be cut off for this reason and give up buying; and if you do not want to buy a charger will be because of the phenomenon of power failure will become more do not want to buy.
Why the power will be cut off? The emergence of multi-port chargers to ease the pressure of the socket when charging multiple devices, but the design of multi-port chargers also has a lot of doorways. Manufacturers can directly and brutally package two chargers directly to a shell, so that the interface can do 1 + 1 = 2, and the volume of the charger is correspondingly 1 + 1 = 2.
This is obviously not a good solution for multiple devices to use 1 charger charging at the same time. So manufacturers in order to reduce the size of the charger, the 2 ports are designed to output the same way, which has the advantage of effectively reducing the size of the charger. In the interface 1 + 1 = 2 at the same time can also do the volume of the charger 1 + 1 < 2.
Another point is that manufacturers tend to advertise the maximum output power when they advertise the output power of the charger, such as a dual USB-C interface charger, USB-C1 supports 65W fast charging when the independent output, when the 2 USB-C interface output at the same time will become 45W + 18W distribution mode.
Charging will power off, which is actually the manufacturer for the sake of the user to prevent burning the device. Users in the use of multi-port chargers, when the wire is inserted into the charger interface is often very arbitrary, and will not deliberately choose a fixed interface.
For example, or the above 45W +18W allocation problem, at this time USB-C1 is charging the phone with 18W power, and then access to a second phone, the chip inside the charger will disconnect the USB-C1 interface and re-examine the maximum power received by the two devices, if the maximum charging power of the 2 phones is 18W, the power allocation of the charger when outputting at the same time is 18W +If there is no power off to redistribute power this step, the charger dual-port output at the same time brainless output 45W + 18W, the probability of the phone will be burned phenomenon, both users and manufacturers do not want this.
Then this phenomenon is hopeless? In fact, it is not, as mentioned above, manufacturers in order to reduce the size of the charger will be 2 interfaces designed to the same way output, which also appears the phenomenon of power failure. Since the same way output will power failure, then the 2 interfaces will be designed to independent output, dual-port output at the same time do not affect each other, is not good.
Or take Samsung's 65W charger, for example, in one of the USB-C output, use the USB-A interface for cell phone charging, in the moment of inserting the USB-A interface USB-C interface does not appear power back down, which also avoids the dual-port simultaneous output power failure.
Simultaneous output constantly power in the actual test, the power meter shows the power value tends to zero but will not return to zero; so, the following will introduce a few charging head network in the actual test will not power off a few chargers, but not comprehensive, only for user reference.
Apple's new 35W charger (A2579) follows the usual smooth and glossy white polycarbonate shell design; and as one of the two chargers equipped with dual USB-C ports for the first time, the volume is also more compact than the original 30W charger; in the actual test, when inserted into the second device, the first device input power does not go to zero, and there is no charging beep again; the power is reduced by the device with dual The power reduction of the device is not related to the order of the dual ports, but only to the order of access to the device.
Apple's new 35W charger (A2676), as one of the two chargers equipped with dual USB-C ports for the first time, is no different from the original 30W charger in terms of appearance and size, except for the interface; in terms of performance, the USB-C supports 35W output power and 20V output voltage when used independently. And the actual test with the same results as the previous one, inserted into the second device, the first device input power does not return to zero, and no re-charging beep; not related to the dual-port order, only with the order of access to the device.
This Vivo 80W charger is a surprise, as the standard charger for the Vivo X Fold; it is reported that this charger uses the NV6136A GaNFast power chip with a new generation of increased GaNSense technology from NanoMicro, and uses a high frequency quasi-resonant (HFQR) topology. And this charger has two USB-C output ports, can support cell phones and computers fast charging at the same time. In the actual test, when the second device is inserted, the input power of the first device does not go to zero, and there is no re-charging beep.
Dual-port charger output power failure at the same time, which is a big or small problem. Many users encounter charging the second device when the first interface power failure problem does not care too much, then re-charge the well, what is it. But many times there are special use scenarios, such as the first interface to connect the home monitoring and other devices that require continuous power supply, when it comes to power outages is very difficult to bear.
Finally, the charger on the market, like this dual-port charger with two outputs, independent of each other's design is not a lot, if there is really some need for continuous power supply can not be disconnected from the use of scenarios, it is recommended to have an additional charger to use, or choose the above summary of some chargers. Although the list is only part of the charger, but also hope that this content can provide some reference for friends looking for dual-port chargers while charging constantly.
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