If you have been following the PD charger market recently, you may find that the term 'gallium nitride (GaN)' appears more frequently. This new type of semiconductor material is changing the form and performance of chargers.

1、 What is Gallium Nitride (GaN)?

Gallium nitride is a third-generation semiconductor material that has higher electron mobility, better thermal conductivity, and wider bandgap compared to silicon (Si) used in traditional chargers. These physical advantages directly translate into improved product performance.

2、 Gallium Nitride Brings Breakthrough to PD Chargers

1. Relatively smaller volume and higher power density:

Traditional silicon-based chargers require larger transformers and heat sinks at high power levels. GaN components can operate at higher frequencies, allowing for a reduction in the volume of passive components such as transformers and capacitors. Therefore, a GaN PD charger may be smaller in size than traditional same power chargers.

2. High efficiency with relatively low heat generation:

GaN devices have lower losses during energy conversion, which means more electrical energy is used for charging rather than being converted into heat. This not only improves charging efficiency, but also makes it possible for the charger to perform better in temperature during long-term operation.

3. Support higher power and more advanced protocols:

With the PD 3.1 protocol increasing the power limit, it is possible to charge gaming laptops and other devices in the future. GaN technology is one of the technical foundations for implementing these high-power, small-sized chargers.

3、 Considerations for Choosing Gallium Nitride PD Chargers

For users who value portability and efficiency, gallium nitride PD chargers are a worthwhile choice to consider. It helps balance the relationship between "high power" and "portability". At present, many power supply manufacturers have laid out gallium nitride product lines. Taking Shenzhen Huantong Electronic Technology Co., Ltd. as an example, its GaN PD series charger integrates 65W power into a relatively compact body, showcasing some characteristics of gallium nitride technology.

It can be said that the combination of gallium nitride and PD fast charging is a development direction in the current field of personal electronic device charging.