Disassembly report: Lenovo Lenovo 65W PD fast charging charger

2021-05-06

Recently, the charging head network noticed that Lenovo Lenovo has a 65W PD fast charging charger manufactured by Kangshu technology, which adopts the current mainstream square column design, and the power density is as high as 1.02w/cm ³， However, the conventional fast charging scheme is adopted. And can use the conventional scheme to design such a small charger case is rare, which makes Xiaobian very curious. Now that we have got this product, we will disassemble it in detail to see the specific materials and workmanship.

Lenovo's charger looks very simple against the white shell, with Lenovo brand and 65W power words on the waist, and fixed pins on the input end. In terms of performance, it supports qc3.0, qc4 +, pd3.0 and PPS fast charging protocols, and has 5v3a, 9v3a, 15v3a, 20v3.25a and 5-20v3.25a voltage ranges to meet the fast charging requirements of pen phones and mobile phones.

Through the disassembly of the charging head network, we know that the PCBA module of the charger is planned in a very simple and hierarchical way. The switching power supply is composed of Anson ncp1342 with Infineon ipl60r185c7 high voltage MOS, MPs mp6908 with Anson fdms86181 synchronous rectifier, and the output voltage is controlled by Tongjia ld6612qm protocol chip. Using one Aihua high-capacity capacitor for input filtering and two solid-state capacitors for output filtering, the overall material is also very solid.