Recently, the charging head network got a 330W laptop adapter TPC-DA60 from hp, a well-known laptop brand HP, which supports 100-240V wide voltage input and 19.5V16.92A output. Although its block body does look rare, such a large power, size, weight, etc. are naturally very "traditional".
In addition, this adapter is produced by Delta, the industry's top power supply manufacturer, presumably the overall material workmanship will not be ambiguous, the following charging head network will be disassembled in detail to see how the actual situation inside.
Previously, the charging head network has also disassembled HP 90W PD fast charge charger, HP 65W PD fast charge charger, HP notebook 65W PD fast charge charger and other products, welcome to check.
First, the appearance of HP 330W power adapter
This power supply is a square shape with an X-shaped top surface and a DC round head output cable.
There are many bright triangles in the concave area on both sides of the top surface, and the overall far point looks like Kamen Rider, which is very recognizable.
The input end adopts a pin socket, and the power cord can be easily removed and replaced.
The output cable has the common anti-interference ferrite beads.
DC round toe close-up.
There is a nameplate in the center of the bottom of the fuselage, and the pattern and 330W lettering below are very conspicuous.
Product model: TPC-DA60
Input: 100-240V 50/60Hz 4.2A
Output: 19.5V16.92A
Manufacturer: Delta Electronics Industries Inc
Non-slip rubber pads are attached to the four ends.
The measured length and width of the fuselage are about 150mm.
The thickness is about 37mm.
The total weight of the belt cable is about 1151g, and the portion is still very sufficient.
Second, HP 330W power adapter disassembly
Tear off the rubber pad to reveal the hidden screws.
Removing the screws makes it easy to open the bottom housing.
The shell is made of PC fireproof material.
The bottom of the PCB board is covered with mylar tablets and metal heat sink plates, and the heat sink plate is soldered and fixed.
Multiple patches on the PCB board help dissipate heat from the device.
The output cable is removed, and the wires are protected by an insulating rubber sleeve.
The front of the power module is also fully covered with metal plates to help dissipate heat.
The front of the PCB board is listed, the left side is equipped with input EMI filtering and PFC boost circuit, the center is placed across two high voltage filter electrolytic capacitors, one of which is covered with rubber sleeve protection, the right side is equipped with a switching power supply circuit, and the transformer is glued and reinforced.
There are not many core devices on the back of the board, and the overall appearance is also very clean and tidy, reflecting Delta's high level of workmanship.
The three connecting wire sleeves at the input are protected by insulated tubes.
The fuse is also covered with an insulating tube.
Next to it is a TVR14621M varistors for input overvoltage protection.
Close-up of the common mode inductor for filtering out EMI interference, gluing reinforcement, and an insulating plate at the bottom.
Safety X capacitor close-up, capacity 0.56μF.
Close-up of the filter inductance, gluing reinforcement.
Close-up of the gray filter capacitor.
Two fairing bridges are screwed on both sides of the heat sink.
Rectifier bridge close-up, LL25XB60, from the new element, withstand voltage 600V, 25A specifications.
Three blue film filter capacitors.
The blue capacitor adopts the Japanese Nikko FPS4 series, and this part number capacitor is also commonly found on Apple's chargers.
PFC boost controller silk screen printing DAP047T, Delta custom model.
The PFC boost switch tubes are available in Infineon IPA60R099P6, CoolMOS P6 series, 650V NMOS, conductivity 88mΩ, in TO220FP package.
STMicroelectronics' STTH16L06C 600V ultrafast high-voltage rectifier with low reverse recovery current for PFC boost rectifier. The green thermistor on the left is used to detect the temperature rise of the power supply.
Close-up of the PFC boost inductor.
The high voltage filter electrolytic capacitor is from Ruby and is 450V 150μF.
The other, also from the ruby, is 450V 100μF.
A resonant inductor is located underneath the heat sink.
Close-up of the resonant inductor.
The main control chip power supply capacitor is also from Ruby, and the specification is 35V 330μF.
LLC controller silk screen printing DAP048T, Delta custom model.
The LLC half-bridge switch tube adopts Infineon IPA60R125P6, which belongs to the CoolMOS P6 series, with a withstand voltage of 650V and a conductivity of 125mΩ in a TO220FP package.
Transformer close-up, courtesy of Delta.
EL 1013 optocoupler for feedback output output voltage.
The synchronous rectifier controller uses the NXP® TEA1995T, which has two built-in drivers for synchronous rectification of the LLC architecture switching power supply, with simplified peripheral components.
The area where the two synchronous rectifier tubes are located is designed to enhance heat dissipation.
The synchronous rectifier tube is available in Infineon's BSC034N06NS, withstand voltage 60V, conductivity 3.4mΩ, PG-TDSON-8 package.
The output filter capacitors are available in the Daily Chemical KZH series and are all 25V 1000μF.
The Dar AP4310E, dual op amp with built-in voltage reference for output voltage feedback and output current monitoring.
Close-up of the 1mΩ current sense resistor.
All disassembled, let's take a family portrait.
Charging head net disassembly summary
Hp's first impression of this notebook power adapter is still "silly big black coarse", after all, 330W output power is placed there, in the heat dissipation consideration, but also have to make sacrifices. Through disassembly, it is found that there is sufficient gap between the passive components on the power supply PCB board, and there are many heat sinks inside and out, which is also a major reason why the power supply is large and heavy.
But on the other hand, I have to admire the material workmanship of this power supply. It is based on the PFC+LLC power architecture design, using Delta's custom primary controller and NXP TEA1995T synchronous rectifier controller, and the corresponding MOS tubes are mainly provided by Infineon. The three major Japanese brand capacitors of Nichi tonggong, ruby and black diamond are filtered, and the material lineup is very luxurious.