Evaluation of Gan 65W charging head of green link
There are 4 kinds of Gan 65W charging heads in lvlian (3 in fact, including a cable set)
They are as follows:
3c1a, standard 129 yuan, excluding data cable, 149 yuan for cable package, 129-139 yuan for general activities
The 4C interface may be used in a few scenarios, as shown in the following figure:
When a data cable is inserted into the pd18w area to charge the mobile phone panel, the actual maximum output of the pd65w area can only be 45 watts
According to the table above, 18W independent area is useless. After all, its maximum output is only 65W.
For the 65W charging head, if there is only a single port, we can charge the notebook. What about the mobile phone
You don't plug your mobile phone into the usb-a port of your laptop to charge, do you? It's usually up to 5v1a, with an output of 5 watts.
Moreover, the transmission rate of your WiFi network card may be affected by the transmission rate, ha ha ha.
Therefore, the one evaluated by the main road today is 3c1a.
Because I personally think this one is the most practical.
Let's start with the conclusion
The product has no false mark
All parameters meet the national standard
Charging all kinds of equipment is not hot
The charging voltage is stable and the waveform curve meets the national standard
It is recommended to buy notebook users who support charging of PD C port, especially those who need to carry the notebook around
The direction and content of this test are as follows
Display products and packaging and related contents in packaging;
USB voltage and current monitoring equipment is used to detect relevant technical indicators and information of charging head
Use various data cables to realize external charging, including but not limited to:
C to C data cable, charging Android mobile phone, notebook and power bank
C to C data line, not limited to lightning 3 data line, e-marker chip data line, etc
The following is the official effect picture. In fact, you can't play like this. It's meaningless
Officials themselves also said C3 should not be used with A1, because charging speed is too slow to be better than none:
However, when we don't charge a large user like laptop or switch, such as tablet and mobile phone, we can plug in three at the same time, which basically can meet the charging speed of 15 watts + per interface.
The road often tells you:
Generally, the light and thin notebook charging starts at least 45 watts output, in fact, it is not completely correct.
It should be, if you want to charge your laptop:
You need PD power at least;
Voltage output of 20V is required;
To activate the charging function of the notebook.
To be clear, the charging head needs to support the PD 3.0 protocol.
But it is not true to say that. How can I say it?
Depending on your notebook, such as the road notebook, the charging information is as follows (usually on the back of the notebook):
DC, voltage is 20V, generally this is rated, current is 3.25a, i.e. maximum 65 watts charging.
When we test, we will find that the voltage must be about 20V, and the current is floating. As shown in the figure below:
The voltage is about 20V, with a minimum of 19.998v, but the current is only about 0.46a and the final charging power is only 9.25 watts.
Because my battery is full (generally 80-90%, this is in trickle charging state, as shown in the figure below:
PD 3.0 protocol supports 3v-21v, which is just satisfied with this. Through instrument monitoring, PD protocol is triggered:
The monitoring of the full charge of laptops with the green Gan 65 watt charging head is as follows: the fluctuation is relatively stable. Let's try charging the 45 watt fast charging treasure again:
As shown in the figure above, because the charging treasure is full of electricity, the charging power is only 5 watts, so this is the value.