With the increasing popularity of PD chargers, 20W PD chargers have become the standard equipment for many cell phones in the market. At present, there are many 20W solutions on the market, but fewer manufacturers can provide customers with a complete solution. As a leading brand of digital power supply in China, Huayuan provides customers with a very competitive complete solution. 20W program primary adopts the built-in 1.8Ω/650V MOSFET intelligent multi-mode flyback converter HYC1603E; synchronization adopts the built-in 11mR/60V MOSFET converter HYC9030D; protocols supporting PD3.1/60V MOSFET, QC2.0, QC2.0, PD3.1, PD2.0, QC2.0 and QC2.0 are all supported by the company. 2.0, QC2.0/3.0/3.0+, FCP/SCP/ACF/Apple 2.4A/BC1.2 protocols, HY5301 has obtained PD3.1 certification (TID: 9557), good compatibility, and passed the compatibility test of 135 devices.