Recently, Lenovo launched a brand new high-power GaN charger
Which is YOGA CC 130, the same series as YOGA computer.
Its dual USB-C port maximum output can reach 130W, even beyond 100w, which is impressive.
OK, let’s unbox it firstly.
The packaging is quite simple.
Let’s look at the specification on the back.
It supports maximum of 130W output with any port.
Cause it’ll intelligently distribute the power.
The model is YOGA 130GL.
The maximum output of a single port is 100W.
The total output of dual ports is up to 130W.
PPS mode supports maximum of 3A 45W.
The production date for this one is May 2021, close to today.
Now let’s see the inside of the box.
The box is tightly sealed.
Open it slowly.
There are only one charger and manual.
Just like Anker 45w, no cable.
Tear off the plastic film on the outside of the charger.
The black shell is very smooth and bright.
The edge is also very smooth and round.
The texture is great when you hold it.
But it’s easy to be stained with fingerprints and oil.
At the same time, it’s easy to leave scratch.
The charger adopts folding pins.
The specification on the bottom are the same as those printed on the package.
Next, let’s measure the size and weight The measurements are 71*71*30mm (2.8*2.8*1.18
inches) and the weight is 256g (9.03 oz).
Compared with Apple 96W charger, it will be smaller, obviously.
Use ChargerLAB POWER-Z KT002 to test the protocol of two USB-C.
It supports Apple 2.4A, Samsung 5V2A, DCP protocol.
And five fixed PDOs: 5V3A, 9V3A, 12V3A, 15V3A, 20V5A, one PPS mode: 3.3-16V5A.
Two USB-C are the same.
When you charge two devices at the same time, you can see that one of the USB-C can reach
100W and the other one is up to 30W, which is 130W totally.
But there is one thing we need to know, that’s PPS mode.
Maybe you will notice that we just tested the PPS mode is 3.3-16V 5A, which is different
from what’s printed on the box (3A).
After our multiple retests, actually, it can support 5A under PPS mode.
Now start to tear it down.
OK, it’s done.
Remove the AC pin firstly.
Since the module can’t be pulled out with pliers. There is one solution, cutting machine.
Cut along all sides.
OK, successfully removed the inside PCB module.
Two pieces of pure copper heat sink are wrapped outside.
There is a layer of thermal isolation plate and a layer of thermal pad under the heat sink.
It needs to be cleaned up as well.
On the top is a small Z-shaped board, supported and fixed by a plastic column between it and the motherboard.
This is the PFC boost inductor.
Two SMD rectifier bridges for input rectification and heat dissipation are behind it.
The primary filter capacitor is in the middle.
There is a ground wire outside the transformer.
A lot of glue is filled around the internal components to fix and dissipate heat.
There is an isolation plate between the primary and secondary circuits for insulation and isolation.
The USB-C port is welded vertically through two small boards.
Continue to tear it down,
and then the components of this PCB have just been removed.
This is where the transformer is located, with a lot of glue
The PFC boost circuit is on the back.
This is ON Semiconductor PFC boost controller.
Here are two Navitas GaN power ICs NV6117, which is the PFC boost switch tube,
The corresponding area on the front is PFC boost inductor.
Here are two Vishay tantalum capacitors for filtering, used to power the master control
chip and PFC boost controller.
This is ON Semiconductor’s LLC controller And two Navitas GaN power ICs NV6115.
Here is an optocoupler, across the primary and secondary circuit.
There are four Aishi electrolytic capacitors for high-voltage filtering in the middle,
which is 450V 22μF.
Here is a fuse.
This is a resonant capacitor.
Let’s look at another small board.
Firstly, this is a safety capacitor.
A common mode chock is behind it.
There are also two film capacitors.
Here is a filter inductor, wrapped by a circle of insulating tape.
Two SMD rectifier bridges are on the back, which can reduce thickness.
After reviewing the switching power supply, Let’s look at the output part.
Its synchronous rectifier circuit is on the back.
Here is a transformer.
The LLC synchronous rectifier is on the back, composed of two synchronous rectifier controllers
and two synchronous rectifier tubes.
All from ON Semiconductor.
The two solid filter capacitors in here are from Polycap RT series, which are 25V 560μF.
It also has ultra-high ripple current resistance capability.
A filter inductor is next to it, which is protected by outer heat shrinkable tube.
The USB-C ports are welded vertically on two small boards.
SMD solid capacitors are used for secondary step-down output filtering.
The step-down inductor is next to it.
The receptacle ports are welded in the hollow of PCB.
The two small boards are the same.
We can look at one board.
Firstly, this is an MPS synchronous buck converter for buck output
The USB-C step-down protocol chip is in the middle, weltrend WT6633P.
It supports USB PD3.0, and gets the USB IF, Qualcomm QC5 certification.
On the other side, there are two MOS tubes and a buck inductor.
A solid capacitor for step-down output filtering is behind.
There is a MOS tube.
OK, that’s all for today’s teardown.
I also noticed this charger is manufactured by Luxshare Precision, which is the same factory
as the Airpods series.
So, its quality ought to be excellent.
Our channel is still in growth.
So, if you wanna see more content like this and haven’t subscribed to us, you can click
the subscribe button or visit our website: chargerlab.com.
I’ll see you the next time.