Dismantling of vivo 33W flashcharge 2.0 fast charging charger

On October 24, 2019, vivo officially released iqoo Neo 855. In addition to this year's flagship chip snapdragon 855, this mobile phone also brings users a faster charging experience. Iqoo Neo 855 supports 33W fast charging and is equipped with a flash charge 2.0 fast charging charger with 33W output power as standard. Let's share the detailed disassembly of this charger.

1、 Appearance of vivo 33W flashcharge 2.0 fast charging charger

Vivo 33W flashcharge 2.0 charger has a flat appearance. The shell is made of white PC flame retardant material, with fixed pins and usb-a output interface. There is no parameter information on the front and side of the charger, so it looks very simple.

The back of charger is printed with product parameters, vivo flashcharge2.0 charger; Model: v3330l0a0-cn, output: 100-240v~ 50/60hz 0.85a, output: 5v/2a or 9v/2a or 11v/3a. Charger manufacturer is Huizhou Jinhu Industry Co., Ltd. and has passed CCC certification.

National standard fixed AC pin. Usb-a output interface is made of white rubber core, and four internal pins can be seen.

Compared with Apple's 30W PD charger, vivo is a much longer charger.

The charger has a net weight of approximately 72g. The output protocol of usb-a interface is detected by using chargerlab power-z kt001. It shows that USB DCP protocol and qc2.0 fast charging are supported. Under qc2.0 fast charging protocol, the maximum output voltage of charger is 9V.

2、 Vivo 33W flashcharge 2.0 quick charging charger disassembly

The charger shell is ultrasonic welding, very firm, output vigorously, the side cover plate pry is deformed before opening.

After removing the cover plate, it can be seen that the internal PCB board is fixed in the guide slot inside the shell, and the output usb-a interface is designed with plastic dust cover. In addition, two output interference-resistant Y capacitors and output filter solid-state capacitors can be seen.

The inside of the shell is connected with PCBA module by metal shrapnel.

Take out PCBA module. The front of PCB is yellow, and the single side circuit board is mainly plug-in components, including transformer, capacitance, delay fuse, safety gauge x capacitance, common mode inductance, etc. and glue injection is used to reinforce the components.
iPhone Charger Cable
The input end is equipped with delay fuse, safety gauge x capacitance, common mode inductance, NTC surge suppression resistance, input filter electrolytic capacitance, etc. A large number of silica gel are used around the transformer and electrolytic capacitance to fix and conduct heat. Time delay fuse, 250V 2A. The gray one is the safety gauge x capacitance. Close up of common mode inductor.

NTC surge suppression resistance is used to suppress surge impact when power is on.

Four electrolytic capacitors are used for input filter, of which three have a slightly larger capacity of 12 μ F. The other is 8.2 μ F. On the right side of the electrolytic capacitance are two Y capacitors.

Aishi Aihua input filter electrolytic capacitor, specification 450V 12 μ F. 105 ℃ heat resistant. Another input filter electrolytic capacitor, 450V 12 μ F。 Summary of dismantling charging head net

Vivo's latest flashcharge 2.0 charger is a much different style than the original one, with a longer body. The shell of the body is made of white flame retardant PC, matte treated, scratch resistant and free from fingerprints. In terms of performance, in addition to supporting the latest flashcharge2.0 fast charging of vivo, qc2.0 fast charging protocol is also supported, which can be compatible with the 18W fast charging of the old vivo model.
iPhone 12 charger cable
The disassembly of the charging head network shows that the charger adopts a complete set of fast charging solutions, and adopts the primary switch tube of the Schonland microelectronics and the secondary synchronous rectifier MOS tube of the Weizhao semiconductor. The main components are from well-known semiconductor enterprises in the industry. Meanwhile, the internal components are arranged orderly and compact, and a large number of glue injection treatment is adopted around the transformer to strengthen the heat dissipation to avoid local overheating in the high power output.