Several days ago, we released the Nubia 120W teardown, which was liked by lots of people.
Actually, except 120W, it also has 65W and 30W models.
So, today we gonna teardown this 30W Cube GaN charger, to see what’s inside.
Cause it’s really tiny. Let’s unpack the box firstly. The box is wrapped
in dark yellow kraft paper. The design is quite simple.
The front is the Nubia brand logo. And the product model,
manufacturer, certification, and other information are on the back.
Open the package. There is only a charger and manual inside.
Nubia 30W GaN charger adopts glossy shell design.
The corners are smooth, and the overall feeling is pretty good.
For the white model, the top is translucent white, and the lower is
pure white, which is very impressive. The USB-C port is not in the center.
We can see the specification of the product is printed on the input shell.
The model number is PA0213, and has five fixed voltage gears:
5V, 9V, 12V, 15V, 20V. It is also equipped with foldable pins,
which makes it have good portability with such small size.
As for cube chargers, Nubia also launched a 22.5W cube charger previously.
Let’s compare them, both chargers adopt folding pins,
and the size is also very close. Take a closer look. 30W is a little bit higher.
And then, we can compare it with the Apple 30W charger.
This time, the size difference is very huge. Then, Let’s measure the charger’s dimensions.
The height is about 33mm (1.3 inches), the width is about 32mm (1.26 inches), and the thickness is about 32mm.
The power density is 0.86W/cm³ The weight is 46g (1.62 oz).
Let’s take a look at the protocol of USB-C port. Use ChargerLAB POWER-Z KT002 to detect that.
It can support APPLE 2.4A, QC3.0, QC2.0, AFC, FCP, SCP, USB PD3.0, PPS and other charging protocols.
In PPS mode, the maximum output is 33W. In addition, PDO message also shows,
the charger supports two sets of PPS voltage gears: 3.3-11V 3A and 3.3-16V 2A.
After looked every angle of this charger, we gonna tear it down.
Welcome our Mr. sledgehammer. Just hit the charger, and hit
it again if it doesn’t work, until the product is opened.
OK, finally open it, and then, let’s use the electric soldering iron to remove
its various components one by one. Let’s see what kind of components inside.
Firstly, we can see the motherboard. There is a hollow slot in the middle
of the motherboard if you take a closer look, which is used to insert this isolation board.
Start from the input end. There are two metal elastic
plates for contact energization. And an SMD fuse behind it.
This type of fuse can save internal space. A common mode chock is next to it.
There is a plastic base under the common mode chock for support.
An SMD bridge rectifier is on the back, which can help reduce the thickness of the entire module.
And then, Let’s take a look at the connection board.
There is an I-shaped inductor and two electrolytic capacitors for high-voltage filter
on the front and has just been removed. The transformer is next to it.
Benefit from the advantages of GaN switching tubes; it can significantly
reduce the size of the transformer and save internal space as much as possible.
Two electrolytic capacitors for high-voltage filters are from Zhongyuan.
There is a primary master chip on the back, Southchip SC3021D, designed for 30W GaN charger.
The GaN power chip adopts Innoscience INN650DA04.
An Everlight 1019 optocoupler across the primary and secondary, used for voltage output.
Here is a Teruixiang SMD Y capacitor.
The synchronous rectifier chip comes from Southchip SC3503.
Synchronous rectifier MOS tube comes from China Resources Microelectronics.
The fast-charging protocol chip is in the middle, which is also from Southchip SC2151A.
This protocol chip from Southchip supports external thermistor.
It can protect the charger from overheating when cooperating with external thermistor.
The output VBUS switch tube adopts Vanguard VS3618AE
The output filter capacitor comes from PolyCap’s RM series.
This series is solid-liquid mixed type. It has the advantages of solid capacitors
and liquid capacitors at the same time.
So, for this charger, will you interest in it?
And that’s all for our today’s teardown. We found there are 90% of the people who watched this video
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