Output power from 18W to 100W (or even 120W or larger), support for fast charge protocols (USB PD3.0/3.1, USB BC1.2, UFCS T/TAF 083-2022, QUALCOMM

QCXX, MEDIATEK PEXXX, HUAWEI S/FCP, OPPO D/FCP, SAMSUNG AFC, APPLE. 4.... Configuration - one or more USB TYPE-A and

Fast chargers with TYPE-C output interfaces are increasingly common. They can be used for multiple purposes, at the same time as smartphones, tablets, smart watches and laptops and other connected digital terminals

Fast charging of lithium batteries. The design of the third-generation semiconductor power device (gallium nitride D/E-MODE HEMT) is small in size and the temperature will not be hot when used, due to the recent years

One of the world's leading smartphone Oems does not make the hockey stick effect of chargers as standard with new mobile phones, making this kind of compact fast charger mainstream in the market.

For fast chargers on the market, the common AC and DC power conversion topologies are FLYBACK and LLC. The FLYBACK topology is most common in designs with lower power, and the LLC topology is most common in power

Larger and higher requirements for AC/DC power conversion efficiency design. Because BOM is relatively simple compared to LLC topology, ACF-FLYBACK topology is also beginning to be adopted for low/medium power designs.

In particular, the primary use of high-pressure gallium nitride HEMT design. Regardless of that topology, the internal structure diagram of the fast charger is roughly as follows:

For the use of fast charging appliances, Jetjet Micro Power provides complete discrete device solutions. For example, AC input anti-surge MOV, TVS, clamp transformer leakage and the original side

High voltage MOSFETS VDS_ MAX produces overvoltage fast recovery rectifier, primary side PFC (75W + design) and high voltage MOSFET matching PWM, secondary side synchronous rectification medium/low

Voltage MOSFETS, low voltage MOSFETS and ESD protection for USB TYPE-A and TYPE-C ports.