Hi, guys. Welcome back to today's video.
If you're a Dell user, you may familiar with this charger,
which is the Dell 130W USB-C Power Adapter.
This kind of 130W charger for Dell laptops is rare.
So, we'll tear it down to see what's inside.
Firstly, the shell is made of flame retardant PC.
The two sides are "curved" design.
It comes with a USB-C cable.
The length is 1.8m (5'11''), pretty long.
Let's see the specification on the back.
Model is HA130PM170.
It supports input of 100-240V and output of 5V 1A or 20V 6.5A.
This charger has passed so many quality certifications
and has so many certification marks.
which also represents it's a universal Dell power supply.
Then, we found it only supports DCP and PD protocol.
As for PD protocol, it also supports 5V 1A, 18V 4.5A, and 20V 4.5A.
The Length, width, and height are 66 * 143 * 21mm (2.6*5.63*0.82 inches).
The weight is 353g (0.78 lb).
Then, let’s tear it down.
Remove the shell and we can see the entire module is wrapped by heat sink and fixed by tape.
The connecting cable is composed of four cores: red, white, blue and black.
Remove all the heat sinks outside.
There is a black insulating layer between the heat sink and the components for isolation.
There're lots of thermal adhesives between components on the front and back of the PCB,
used for fixing and heat dissipation.
Then, we'll clean up the PCB.
The APFC boost coil and transformer are on the front of the PCB.
There's some space between the primary and secondary circuit on the back,
to ensure a safe distance.
The charger uses APFC circuit and LLC switching power supply
to do the secondary synchronous rectification.
Then, the protocol chip will control the output voltage through optocoupler.
Ok, then, let's analyze every single component one by one.
For the input part, the input delay fuse is 4A 250V.
The black safety capacitor is in here.
The common mode choke is used to filter out EMI interference.
The rectifier bridge is fixed by screws.
The filtering inductor is below.
Those are two blue film capacitors.
The electrolytic capacitor is 450V 100μF.
From Hongkong brand, SAMXON.
The PFC controller is this small eight-pin chip,
which comes from NXP, used to boost the rectified and filtered voltage.
It integrates X-capacitor discharge and supports multiple protection functions.
Here are Infineon MOSFETs.
They are connected in parallel for APFC boost.
Withstand voltage is 700V and resistance is 0.25Ω.
This is ON Semiconductor ultra-fast recovery diode, used for PFC rectification.
Specification is 3A 600V.
This is the APFC boost inductor.
The specification of power supply capacitor of
master control chip is 50V 100μF. Brand is Chinsan.
Here is the LLC controller.
It can form a switching power supply with APFC
when working with TEA19162,
used to improve power conversion efficiency.
This is Infineon's primary switching MOSFET.
Withstand voltage is 550V and resistance is 0.28Ω.
The APFC boost inductor is covered with a metal heat sink.
Another Infineon primary switching MOSFET is under the heat sink.
It can form the LLC primary structure with two switch MOSFETs of the motherboard's back.
This is a switching transformer.
There is an Everlight optocoupler on the back, model is EL 1018.
It acrosses between the primary and secondary circuit and adjust the output voltage.
This is the LLC synchronous rectifier,
which comes from MPS MP6924A and is compatible with CCM/DCM mode.
It has stronger anti-interference and fast shut-off capability.
The secondary synchronous rectifier MOSFET is next to the transformer, which is Infineon BSC0702LS.
Specification is 60V/100A, and resistance is 2.7mΩ.
The other one is on the back, and they can form the LLC synchronous rectifier.
Those two filter solid capacitors are connected in parallel for output filtering.
The specifications are all 25V 470μF.
There is another small PCB, which is covered by two thermal pads.
Remove it, and we can see there are a chip and inductor on it.
This is high-efficiency synchronous step-down converter, which is MPS MP9473.
It integrated switch MOSFET, and supports input of 4.5-36V and output of 3.5A.
USB PD protocol chip adopts Weltrend WT6632F.
As a highly integrated USB PD controller,
it has passed the USB PD3.0 certification and supports 3V to 30V.
This PMOS comes from Alpha & Omega AON6407,
used for output VBUS switch. Withstand voltage is 30V.
This PMOS comes from Alpha & Omega AON7405, same as AON6407.
The rated current of this output fuse is 5A.
Ok, that would be the complete analysis of this Dell 130W charger.
It's also the largest one in Dell USB-C PD charger family.
Except for the 20V 6.5A 130W fast charging, it also has three PDOs of 5V 1A、18V 4.5A,
and 20V 4.5A, which means you can use it to charge other PD devices.
I'll put the compatible Dell laptop in the description. And if you like this video,
please subscribe to us.
See you soon.