Disassembly report: 30W 1a1c fast charging charger of jiletang

2021-05-06

Recently, joyroom, a 20W 1a1c dual port fast charging charger, has been dismantled by the charging head network, which has attracted the attention of many small partners. Today, I will continue to share with you the dismantling of a 30W fast charging device in jilotang. This charger is also equipped with 1a1c interface, which supports 18W QC and 30W PD fast charging respectively. The a port also supports Huawei's 22.5w SCP fast charging, which is highly practical. Let's take a look at the materials and workmanship of the charger.

This charger is designed with small square column, simple body, and is equipped with popular 1a1c interface. It supports QC, AFC, FCP, SCP, PD, PPS and other mainstream fast charging protocols. In addition, it also has 3.3-11v2.5a PPS voltage range, with good overall compatibility. It meets the fast charging requirements of Huawei 22.5w, iPhone 12 series 20W, Samsung 25W, and tablet devices.

Through the disassembly of the charging head network, it is learned that PCBA module adopts two circuit boards combined and welded into L-shaped structure, capacitors, transformers and other devices are glued and reinforced, and the input end is equipped with insulation isolation board. The switching power supply of the charger is composed of a high integrated master control chip sdh8666q, a synchronous rectifier controller mk91808 and a valley peak rectifier. The output terminal uses xpd738 to control the dual port output voltage. In addition, Yongming small PD fast charging capacitor is used for input and output filtering.