We received many comments requesting the teardown of the Ego Exinno 240W charger.
This is a big brick, which takes us a lot of time to take apart.
So, let’s start today’s video.
Since it can support up to 240W, it is called “The King of Chargers.”
And it can also support all fast charging protocols.
Flip to the back. We can see the specifications and product features.
Just open the box first.
And it contains the charger, power cord, and AC plugs for Australia, UK, and Europe.
The AC plug has a connection slot and red clips for fixing.
The power cord plug also adopts detachable design.
The length of the power cord is about 1.48m (4’ 10.3”).
Tear off the plastic film.
It adopts the anti-fingerprint matt finish.
And the shell is printed with the EGO brand logo.
It is equipped with three USB-C ports and three USB-A ports.
You can pause to check the distribution strategy.
Let’s see the specs info on the side.
Model is EX220.
It can support input of 100-240V~50/60HZ 3A and up to 220W output.
But the turbo mode can be up to 240W output.
It also has passed PSE, KC, CE, and FCC certifications.
It actually comes with foldable US prongs after removing the AC plug.
Here is the LED indicator.
The size of the charger is 83.13 x 109.87 x 32.94mm (3.27 x 4.33 x 1.3 inches).
The weight is about 472.4g (1.04 lb).
It’ll light up after plugging it in.
There is a display panel, which shows the real-time wattage for each port.
The ChargerLAB POWER-Z KT002 shows the USB-C1 supports all mainstream protocols, except for the VOOC.
It also supports five fixed PDOs of 5V2A, 9V3A, 12V3A, 15V3A, 20V5A,
and a set of PPS of 3.3-21V5A.
And we also tested the supported protocols and PDO of the USB-C2 and USB-C3.
We find all USB-C ports are the same, which can be up to 100W.
Next, let’s use the KT002 to test the USB-A1, which supports QC2.0/3.0, AFC,
FCP, SCP, VOOC/DASH/WARP, PE2.0 protocols.
And the USB-A2 supports QC2.0/3.0, AFC, and FCP protocols.
The USB-A3 is the same as USB-A2.
After the brief introduction, let’s take apart this giant brick.
Use the spudger to pry along the gap.
The back of the PCBA module is covered with a large ​brass heat sink.
The front components are also covered with a brass heat sink.
And the white silicone adhesives can enhance heat dissipation and fix the components.
The display panel is connected to the PCB via this cable.
After cleaning up the PCB. There’re three small PCBs on the front.
The CONQUER fuse is next to the input wires. 5A 250V.
A blue varistor is behind the fuse, used for overvoltage protection.
The first common mode choke is wrapped with heat shrinkable tube.
The safety X2 capacitor is from JURCC. 0.47μF.
The second common mode choke is also wrapped with heat shrinkable tube.
And then, the bridge rectifier is from JF GBU810, used to convert AC to pulsed DC.
8A 1000V.
Those two film capacitors are from JURCC. 0.47μF 500V.
The toroidal inductor is next to film capacitors, used for input filtering.
The tiny filter capacitors can power two master control chips. 25V 330μF.
Next, let’s talk about the PFC circuit.
This is a two-phase interleaved PFC controller.
Model is ON Semiconductor NCP1632.
It can use two small boost inductors to replace a larger one.
And here’re two PFC boost inductors.
Two GaN ICs for PFC boost are from Navitas NV6127,
which integrates GaN FET, driver, and logic circuit.
Two chips are symmetrical and adopt QFN6*8 package.
It also supports up to 2MHz switching frequency.
10-30V, 125mΩ.
Two PFC boost rectifiers are from SGKS and adopt PDFN5*6 package.
They’re used for two-phase rectification. 650V, 6A.
Those four electrolytic capacitors are connected in parallel.
33μF 400V.
And 132μF in total.
The master control chip is from ON Semiconductor NCP13992,
a high-performance resonant LLC controller.
It integrates high-voltage driver and supports up to 750KHz operating frequency.
The optocoupler is also on this small PCB for output voltage feedback.
Those two Navitas GaN ICs are on the back, used for the LLC topology.
Model is NV6125.
They can form the half-bridge circuit and adopts QFN6*8 package.
It also integrates driver and supports 2MHz switching frequency.
175mΩ, 650V.
The LLC resonant inductor is tightly wound with insulating tape.
And this larger one is the LLC transformer.
The AC output from the secondary side of the transformer will be rectified into DC and sent to secondary step-down circuits.
Those two secondary synchronous rectifiers are from LONTEN, used for LLC synchronous rectification.
60V, 3.6mΩ.
And two synchronous rectifier controllers are just below them.
Model is ON Semiconductor NCP4306.
Two solid capacitors are used for output filtering.
1000μF 25V.
The toroidal inductor is also used for output filtering.
Two SMD Y capacitors are from TRX, featuring small size and light weight.
Next, let’s take a look at the secondary step-down PCB.
It has six step-down controllers and an MCU.
All six controllers are from Ismartware SW3518S.
It’s a highly integrated dual-port protocol chip with multiple fast charging protocols.
It has passed VOOC certification, and the maximum output power is 100W.
The current sampling resistor is above it.
Here is the Cmsemicon MCU, used for power display and intelligent distribution.
The synchronous step-down MOSFETs for three USB-C ports are from ZMJ Semi.
30V, 4.5mΩ.
And then, this is the synchronous step-down MOSFETs for USB-A ports.
Three USB-C ports are green and can support up to 100W.
And this USB-A port is also green and can support 35W fast charging.
The rest of the USB-A ports are orange and only support 18W.
Here is the display panel. The USB-C ports have three digits,
and the USB-A ports only have two digits.
Flip to the back.
We can see the LED driver is from Titan Micro,
used to display the power of each port.
Well, that’s all components of this powerful 240W charger.
It adopts the staggered PFC circuit and LLC topology.
First, it outputs a fixed voltage.
And the secondary step-down PCB controls the output power of each port.
This charger is composed of multiple small PCBs,
which can improve space utilization.
And the front and back of the PCBA module are covered with heat sinks
to enhance heat dissipation performance.
OK, that’s all for today’s video.
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I’ll catch you guys in the next video. Bye.