Sony is an old -fashioned home appliance brand that everyone is familiar with. The product line is rich. In recent years, it is mainly Play Station. It is very popular with young people. In addition to game consoles and mobile phones, Sony also launched a number of USB PD chargers. The charging head network recently received a Sony 45W line PD fast charger. Here is a disassembly for this charger. Essence
Sony 45W adapter open box
This adapter comes with a USB-C output cable, the fuselage shell frosted anti-fingerprint, and the top surface injection molding concave print Sony brand logo.
The transition between the waist is round.
The charger is equipped with a fixed national standard plug, and the layout of the fuselage is destined to be inserted on both sides of the socket, otherwise it will occupy the position.
Enter the charger parameter in the input terminal.
Input: 100-240V ~ 50/60Hz 0.9A
Output: 5V3A, 9V3A, 15V3A
Manufacturer: Feihong Technology Co., Ltd.
Production plant: Feihong (Dongguan) Electronics Co., Ltd.
The adapter has passed the CCC certification and VI -level energy certification.
The output cable was processed by bending.
USB-C header shell frosted treatment is convenient for insertion and plugging.
The height of the adapter body is 47.78mm.
The width is 66.58mm.
The thickness is 33.02mm.
The length of the cable is about 1 meter.
The overall size of the product is felt.
The total weight is about 182g.
Use ChargerLAB POWER-Z KT002 to measure the charger to support QC3.0 and PD2.0 universal fast charge protocols.
In addition, there are three sets of fixed voltage gears of 5V3A, 9V3A, and 15V3A.
After you have a basic understanding of this adapter, continue to disassemble it below to see how the workmanship is.
Due to the internal glue of the charger, the internal PCB module cannot be removed after removing the shell, cutting the shell with the cutting machine, and removing the PCB module.
The PCB module irrigated the internal reinforcement of the reinforcement of the gravite shell, which is very good, which is also difficult to remove the PCB module.
The AC input terminal uses a wire welding connection.
Welding of cold pressure terminals on the output end.
Clean up the irrigation and seal on the PCB module.
At a list of the AC input, you can see the co -mode inductance of the fuse, the X capacitor, the co -modular inductance, the tape winding and the NTC thermistor that suppress the surging current.
At a list of the output side, you can see the secondary output cable welded on a vertical protocol board. The green element between the capacitor and the transformer is a thermistor that is used to detect the temperature rise of the charger.
At a glance on the back of the circuit board, you can see that the junior switch tube and the second -level simultaneous rectifier circuit, and the slot of the circuit board is strengthened to strengthen the insulation.
The height of the PCBA module is 44mm.
The width is 62mm.
The thickness is about 22.8mm.
The input terminal is slowly melted, with a specification of 3.15A 250V.
The first -level co -mode inductance uses a two -line winding, a green magnetic ring.
X capacitor specifications are 0.47 μF.
There is an insulation bracket at the bottom of the co -mode induction magnetic ring, and the external winding tape is wrapped.
The thermal resistance is not covered with sealing glue. Avoid the resistance of the resistance due to the sealing thermal heat conduction, and the conversion efficiency of the charger is reduced.
Enter the end -stream bridge wire print MB30JL.
High -voltage filter capacitance comes from Guimei Gong. It is used to output the pulsating DC filter output from the rectifier bridge into DC. The KXJ series long life capacitance, 105 ° C 12000 hours, 400V 68 μF.
The switching power supply primary controller uses NXP NXP TEA18362T. This is a multi -mode quasi -resonance reaction controller. It runs in a quasi -resonance mode under the heavy load. Essence
TEA18362T has a built -in high voltage startup, supports X capacitor discharge, with adjustable soft startup. The device has a low -working current, built -in excessive power, overheating, transformer degeneration, high -precision overvoltage protection, and the longest lead time protection.
The junior switch is from Taiwan half, TSM70N380, overrun NMOS tube, 700V resistance, obstruction 0.38Ω, and uses to252 patch packaging.
Anti -RCD absorbing circuit close to absorb the primary leakage energy of the transformer.
The thermistor used to detect the temperature of the temperature is written and used for the heat protection function of the charger.
The transformer is specially written, and the insulating tape is tightly wrapped.
A close -up of the blue Y capacitor.
The 1019 optocoupler used for feedback to adjust the output voltage, by adjusting the current strength of the input terminal, changing the luminous intensity of the internal emitting diode, the photovoltaic triode of the receiving end controls the voltage drop of the triode according to the intensity of the light, and achieves isolation communication.
The AC electricity output of the transformer is converted from a synchronous rectifier circuit to DC electricity output. The synchronous rectifier controller is NXP Ninhowa TEA1792. It is a synchronous rectifier controller that supports DCM and quasi -resonance rebellion working mode. The grille drive with 10V output inside is maximized by maximizing at any load. The chip built -in power supply circuit does not require auxiliary coils to support high and low -side applications.
Synchronous rectifier comes from AOS universal, the model is AON6250, 150V resistance, and the obstruction is 16.5MΩ.
The protocol small board is welded on the PCBA through a needle, and the output line is also welded on the protocol board. The front of the small board is a protocol chip.
On the back is the stabilized power supply chip and VBUS switch tube.
The protocol chip comes from Yuchuang, EJ898P. It is a protocol chip that supports USB PD2.0 and supports 100W power transmission.
The VBUS switch is from Bandai, AO4447A, PMOS, 30V resistance, 5.5MΩ, and is packaged with so8.
Magnetic ring inductance for output filtering.
The electrolytic capacitance of the output filter comes from Lilong, 1500 μF 25V.
Another filter capacitor comes from Koshin Dongjia with a specification of 25V150 μF.
Filtering solid capacitor information is blocked by sealing, and information such as brand parameters cannot be recognized.
After all the disassembly was dismantled, come to Zhang Quanjia portrait.
Summary of charging head network disassembly
The Sony 45W PD charger uses a conventional square design, comes with a 1 -meter output cable, and a fixed pink design, but the setting setting is not very friendly to the porous insertion, which will block other jacks. According to the previous observations of the charging head network, the charger of large brands comes with cables is usually not unexpectedly designed. Compared with domestic manufacturers, competitiveness is obviously absent. The charger supports the PD2.0 fast charge protocol, and the output supports 5V3A, 9V3A, and 15V3A three sets of fixed voltage gears, but it can still power the notebook that supports PD fast charging.
The charging head network learned through disassembly that the charger of Sony uses an irrigation process, which has stronger heat dissipation performance and weather resistance. A built -in thermistor is used to detect temperature rise. The charger uses NXP NXP TEA18362 primary controller+TEA1792 synchronization rectifier controller. The protocol chip uses Yuchuang EJ898P, supports PD2.0 fast charge, and the output uses electrolytic capacitors and solid capacitors to meet long -term use needs.
Sony 45W adapter open box